Certificate of pressure testing of the heating system - procedure for carrying out work and drawing up the document

Document year: 2019

Document group: Acts

Type of document: Act

Download formats: DOC, PDF

Test reports are drawn up in the form of document forms in which the results of testing the performance of mechanisms and equipment are recorded.

In today's article, we will consider in detail the testing of pipeline systems, sewerage systems, stairs and stepladders, roof fencing and fire tests.

Examples of drafting acts can be downloaded for free at the end of the article.

How to draw up a heating system pressure test report - rules for completing the form

After completion of work related to pressure testing of the heating system, a special document is drawn up confirming that the heat supply structure is ready for winter.
A special form is provided for this. It is called the act of pressure testing the heating system. The main task of this type of plumbing work is to test the quality of the pipeline assembly, determine how ready it is for operation, and check the tightness of all joints. If defects are identified that were not visible during external inspection, they should be eliminated.

Pressure testing is considered an important stage in the arrangement of heat supply in buildings for a wide variety of purposes.

This work is performed in certain situations:

before the start of the autumn - winter season;
after completing the installation of the new heating circuit;
when the repair or reconstruction of the entire heating main or its section is completed;
after construction work carried out in the building.

Transcript

1 Heat exchanger flushing act sample >>> Heat exchanger flushing act sample Heat exchanger flushing act sample Organization of commercial metering of thermal energy and coolant includes: Chapter The sequence of execution by flushing specialists who specialize in the activities of well-known structures is as follows: lays out the release of equipment. The reagent in this case is an alkali or acid solution, which will prevent the formation of rust in the pipeline. The sample is usually a standard text in which individual fields that are required to be filled out are deliberately omitted. Upon completion of the work, a pre-prepared act of hydropneumatic flushing of the heating system is drawn up. Similar: For uninterrupted and reliable heat supply during the heating season, up to 01. In this case, the commission draws up a report on identified deficiencies, which provides a complete list of identified deficiencies and deadlines for their elimination. At the same time, the form of the document, as a rule, remains standardized. The only equipment required for the procedure is a pump with a measuring device and a pressure gauge. The cost of work includes payment for equipment rental, consumption of reagents and fuel. Write to us at sovet-ov yandex. At the same time, the form of the document, as a rule, remains standardized. Calculations and drawing up estimates Before starting work, make the necessary calculations. Cleaning plate heat exchangers - List of organizational and technical measures for preparing systems. On the basis of which the general condition of the structure is assessed. These include substances made from acid or alkali. It displays all planned and completed work. Related: For uninterrupted and reliable heat supply during the heating season up to 01. What does the act of flushing heating systems look like? The sample and appearance of this document depend on the complex of activities carried out by specialists

An important place in the contract is given to the column that describes the actions under the responsibility of the customer and the contractor. Any deficiencies found should be corrected before flushing begins. Report on flushing and purging of pipelines Date: Monday, 14

The metering devices used must comply with: the requirements of the legislation of the Russian Federation on ensuring the uniformity of measurements in force at the time the metering devices are put into operation. But the horizons of the supplier of perception are naive; when accepting, they use a different method. Sample report of washing the heat exchanger Otherwise, it can be argued that there is a leak in it. It is necessary to know certain nuances. Algorithm for compiling documents and the procedure for drawing up an act. Organizations involved in the repair and maintenance of heating systems have an algorithm for drawing up documents and a procedure for drawing up acts, which determines the procedure for flushing. The real side of flushing, as well as its probabilistic component, have their own characteristics. If a leak is detected in the heat exchanger, the plate sections should be tightened and the test performed again. Then the heating system flushing certificate is filled out and signed.

Act on flushing and purging of pipelines Date: Monday, 14. The metering devices used must comply with: the requirements of the legislation of the Russian Federation on ensuring the uniformity of measurements in force at the time the metering devices are put into operation. But the horizons of the supplier of perception are naive; when accepting, they use a different method. Sample report of washing the heat exchanger Otherwise, it can be argued that there is a leak in it. It is necessary to know certain nuances. Algorithm for compiling documents and the procedure for drawing up an act. Organizations involved in the repair and maintenance of heating systems have an algorithm for drawing up documents and a procedure for drawing up acts, which determines the procedure for flushing. The real side of flushing, as well as its probabilistic component, have their own characteristics. If a leak is detected in the heat exchanger, the plate sections should be tightened and the test performed again. Then the heating system flushing certificate is filled out and signed.

Gas supply

Contract for hydraulic testing of the heating system No.

Info

Moscow "" 20 LLC "", represented by the General Director, acting on the basis of the Charter, hereinafter referred to as the "Customer", on the one hand, and LLC "", represented by the General Director, acting on the basis of the Charter, hereinafter referred to as the "Contractor" ", on the other hand, in the joint reference, the "Parties" have entered into this Agreement as follows: 1

Important

Subject of the Agreement 1.1 The Customer instructs and the Contractor undertakes to perform work to conduct a hydraulic test of the heating system of the building at the address: (hereinafter referred to as the Facility). https://www.youtube.com/embed/wyamZedWpzU

Test program for heating points

The work program for testing heating substations is developed by the contractor conducting the tests, based on the design and operational documentation of all units of the heating substation. The work program should include:

Safety Procedures
Measures for preparing test equipment
Test procedure
Technical description of measuring equipment
Test timing
Test Responsible

The contractor coordinates this package of documents with the customer and then all actions are carried out according to the approved plan. After testing, the results are analyzed, on the basis of which a test report and technical recommendations for operation and repair are drawn up (if “weak points” are identified). If violations were identified during the tests, then after eliminating them, the tests must be repeated.

The engineering department of Rusenergo LLC provides customers with a detailed technical report based on the results of hydraulic and thermal tests of heating points. The report evaluates the condition of the heating point equipment, indicates measurement standards for the following tests and inspections, recommendations for repair work and technical requirements for the operation of all components of the heating point. If during testing our specialists discover ineffective operation of individual components, erroneous connection diagrams or outdated components, the technical report will provide full recommendations for the renovation of the heating unit.

Conditions for drawing up a hydraulic test report for a water supply system

It all starts with a visual inspection of all elements of the system. We are talking about risers, highways, plugs, connections, and so on. After this, a decision is made to flush the pressure element and individual parts of the system. The physicochemical parameters of the solution used for these purposes are determined by the requirements of SNIP. The purpose of flushing is to remove the deposits that have formed.

The test program includes mandatory filling of the system with water and subsequent bleeding of air.

Under no circumstances should you falsify the document.

The further procedure is as follows:

The compressor is connected;
The pressure goes down;
The form records all points where a lack of the required level of tightness was detected;
Based on the collected information, local repairs of the gas pipeline or water supply are carried out;
After its completion, a repeat test is carried out to evaluate the effectiveness of the manipulations performed;
An act is drawn up indicating the readiness of the system for continuous operation or the need for further repairs.

Once all tests are completed, evaluation of the resulting data begins. It is carried out on the basis of an approved methodology. The fewer mistakes the contractor makes, the more likely it is that the final document will be approved.

Guidelines

A sample of filling out the act is available at the supplying organization. First, the date of testing is indicated. You must enter the name of the object and its address. Here you need to start from the passport of the building. After this, the persons who took part in the work are listed.

The hydraulic test report should be stored carefully

Most of the inaccuracies arise when filling out the column that lists the physical parameters of the heating or cooling system tests performed.

The next point is the area or place where the tests were carried out. Here you need to remember that the full name of the object is indicated.

The process of further filling out the pipeline survey report is as follows:

Test and working pressure size;
Time of its fixation;
Pressure gauge indicators;
The result of the visual inspection;
List of repairs carried out or recommended;
Conclusion about the performance of the system under study;
Signatures of responsible persons.

A certificate of suitability of the system for further operation is drawn up by the supplying organization or persons who have received the appropriate approval. The regulations for all events are prescribed in SNiP. Strict implementation of all recommendations is a guarantee that the document drawn up will have legal force. Each stage of testing is carefully recorded. All information collected is used to compile the final report.

Crimping procedure

Operating principle and types of valves for pipelines

To check the heating system in this way, hydraulic tests are carried out on the following elements:

Pipes.
Heat exchangers.
Boilers.

If leaks are detected during testing, a conclusion is made about the depressurization of the network.

Immediately before testing, the water supply and heat supply systems are isolated. They also visually determine the strength of the existing connections, check the shut-off valves for operability and evaluate their general condition.

At the next stage, the expansion tank and heating boiler are turned off in order to flush heating devices and pipes from deposits of various natures and remove debris and dust.

If hydraulic tests involve filling the heating system with water, then a compressor is connected to the drain valve to test with air. Gradually, the pressure in the system increases, its indicators are monitored on special pressure gauges. If there are no changes, a conclusion is given about the good tightness of the system and the possibility of putting it into operation. Pressure testing of heated floors with air is carried out in a similar way, including some nuances.

If an acceptable pressure drop is observed during pressure testing of the heating system, then there are areas with defects in the system. During hydraulic tests, such places leak. If the test was carried out with air under pressure, then the joints and joints are treated with a soap solution.

Pressure testing with air lasts approximately 20 hours, hydraulic tests require only 1 hour.

If defects are detected, repair work is carried out and pressure testing is carried out again. The steps are repeated until good tightness of the system is achieved. Based on the results of the work carried out, a pressure test report for the heating system is drawn up. It is worth noting that the heating system pressure test certificate is a necessary document.

Work procedure

It is recommended to study this procedure in order to exercise control over the company’s employees performing this procedure. First, preparatory work must be carried out; with a newly installed system, this means preliminary flushing and visual inspection for leaks. In the old scheme, it would not hurt to drain all the coolant, clean the mud trap and perform a thorough flush. The boiler should be isolated from the system using taps. For the crimping operation, an electric or manual pump equipped with a pressure gauge is required. The test can be done by pumping water (hydraulic method) or air (pneumatic method) to the required pressure. With the pneumatic method, the pump is simply connected to the system’s feed fitting and pumping begins. The hydraulic method requires filling the system with water and carefully bleeding air from it, otherwise you may get an incorrect result.

Important. A factory pump for pressure testing a heating system is often equipped with a pressure gauge designed for a maximum pressure of 50 Bar and it is not easy to determine a value from it, for example, 9 Bar. In such situations, you must have an additional device with a scale of no more than 16 bar, mounted in the form of a unit with taps and connected to the pump, as shown in the photo:

In such situations, you must have an additional device with a scale of no more than 16 bar, mounted in the form of a unit with taps and connected to the pump, as shown in the photo:

Air pressure testing of heating is done with a conventional automobile pump, connected to the replenishment or emptying pipe through a unit with a pressure gauge, shown in the photo. It is enough to pump up a pressure of 2 bar; this is enough to check the tightness with air. Then you need to keep the pipelines under pressure for several hours, while it is better to turn off the drain valve, recording the readings of the device.

Over time, the pressure in the system may drop by 0.2-0.3 Bar, after which the pressure gauge needle will stop. This is due to the heating and expansion of air during pumping and is considered an acceptable error.

As for hydraulic testing, the pressure testing rules (VSN 69–97) require first bringing the pressure to the worker and inspecting for leaks or ruptures. Then, over the course of half an hour, the pressure is gradually increased twice by one and a half times - to the test pressure. That is, with a system pressure of 2 Bar, you need to pressurize at 3 Bar. If the drop does not exceed 0.6 Bar, then it is necessary to maintain a period of time of at least 2 hours. Is the pressure gauge needle still in place? The test has been successfully completed and you can begin filling out the form.

In a situation where the pressure gauge shows a continuous slow drop in pressure in the network, you need to look for a leak. This is done visually or using a soap emulsion and a brush. Once a leak is detected, the leak is eliminated and the heating pipes are pressure tested again.

Components of the heating system pressure test report

At the top left is information about the organization that carried out the inspection. Ideally, there should be a signature for approval by the chief power engineer of the heating supply organization.

The top right should contain subscriber information. That is, about who is the client and consumer of heating services. This could be a partnership of residents of a particular house, any organization that occupies the building, the owner of a private house, etc.

It is important to provide names and other information accurately and in detail. In this case the address is required

The main part of the act states:

City.
The date of signing the act (and the pressure test itself).
Heat supply organization: its form of ownership, name, full name of the representative.
Which of the subscriber's representatives accepted the heating system after the test: full name, position.
To what indicators the pressure in the system was raised is indicated in kgf/cm2.
To what indicators did it drop after 10 minutes following the shutdown (the units of measurement here are also kgf/cm2, it is also permissible to measure it in mPa if accurate data on this matter is available).
Whether the system passed or failed the test (the person completing the form needs to highlight the correct option).

The final part consists of the signatures and seals (if any) of the representatives:

Subscriber.
Heat supply organization.
Service organization.

In general, the act of pressure testing the heating system is a convenient primary document, for filling out which the heat supply organization is responsible.

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Appendix 5 to Methodological recommendations for technical inspection of pipelines of heating networks of public heating systems

ACT FOR HYDRAULIC TESTING OF HEATING NETWORK PIPELINE DURING TECHNICAL INSPECTION (recommended form) ________________ "__" ____________ Object ___________________________________________________________ We, the undersigned _____________________________________________________ (name of organization (enterprise) ___________________________________________________________________ position, full name) have drawn up this act in that , that in the section from chamber N ______________ to chamber N ______________ of route ________________________________ (name of pipeline), a hydraulic test of the pipeline was carried out with test pressure _____________ MPa (kgf/sq. cm) for ________ minutes. followed by inspection at a pressure of __________ MPa (kgf/sq. cm). At the same time, it was discovered that ___________________________________________________ ___________________________________________________________________ The pipeline was made according to the design ___________________________________ Drawings N __________________________________________________________ Conclusion ________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ The person who carried out the technical examination (the person responsible for the good condition and safe operation of the pipeline); representative of the State Supervision Authority; representative of a third-party organization ___________________________________ (full name, position) Representative of an organization operating heating networks ___________________________________ (full name, position)

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Heating system flushing act

In addition to the final act, indicating high-quality work performed, you will need to draw up and sign a number of other documents together with the contractor.

All papers drawn up in accordance with the law will give you the opportunity to make claims to the contractor in the event of poor-quality washing or in the event of material damage in the form of damage to system elements. This will also allow you to defend your rights in court.

Let’s imagine the sequence of actions of the contractor, in which you will also take part:

initial visual inspection by representatives of the organization;

choosing a washing method and agreeing it with you;
submit for review and signing an estimate that reflects the types of work and materials used, as well as the contract price;
enter into a contract;
then the heating system of the residential building itself is flushed;
acts are drawn up for hidden work (if any);
testing (pressure testing) of the pipeline network is carried out, which is confirmed by the relevant document;
a report of the washing performed is drawn up, which you must endorse if there are no complaints against the contractor.

Note. The official document indicating hidden work must be accompanied by photographic evidence of the fact that these operations were performed.

The procedure for drawing up a report for cleaning the system

The act signed by the Customer (that is, you) for flushing the heating system of a residential building is a document characterizing the quality of the work done. It must be formatted correctly and contain the following information:

date of completion of work and preparation of the document;
method of flushing heating networks of a residential building;
volume of water (entered into the document according to meter readings);
flushing fluid temperature;
feedback from the Customer on the quality of the cleaning performed;
signature of the responsible contractor and the head of the contractor.

Only if you have all the listed points and, of course, well-functioning heating, you can endorse this document and proceed to agreeing on payment papers. But remember that it must be preceded by a pipeline testing report, a sample of which is given below:

To give you an idea of the essence of the issue, we also provide a sample report for flushing the heating system:

Although completing all these formalities takes some time, you, as the Customer, will receive documentary evidence of the cleaning of the heating of the house.

This will protect you from the irresponsible approach of the contractor, since if you discover the poor quality of the procedure performed, you can refuse to sign payment documents, providing a reasoned written justification in accordance with the contract.

As-built documentation

Download other construction acts.

Acts on the construction of gas and oil networks:

1 Acceptance certificate for the completed construction of a gas distribution system facility, form,

1a Certificate of acceptance of a gas distribution network facility completed by construction, example,

2 Acceptance certificate for construction and installation work of the gas pipeline, form,

3 Act of laying out the gas pipeline route, example,

4 Pipeline purge report, form,

5 Gas pipeline purge report, example,

6 Visual and measuring inspection report (VII) of welded joints, form,

7 Act of visual and measuring control of VIC, example,

8 Certificate for scanning vertical mounting joints of the tank wall, form (VSN 311-89), example,

9 Certificate of transfer of the oil pipeline section by the customer to the work contractor for major repairs, form,

10 Acts of transfer of operation of technical devices (GRPSh, etc.), form, .

11 Acts of transfer of operation of locking devices, form,

12 Technical device testing report, form,

13 Certificate of acceptance and transfer of executive documentation of ITD, example,

14 Certificate of acceptance of laid and ballasted pipeline, example,

15 Certificate of acceptance into operation of a completed overhaul of a gas pipeline, example,

16 Certificate for backfilling, deboning of a laid pipeline, example,

17 Act on monitoring the continuity of the insulating coating of a pipeline, example,

18 Report on the results of testing products for compliance with technical specifications. documentation, example,

19 Report on the results of inspection of IKP products, example,

20 Report on the results of product inspection, complete visual inspection, example,

21 Incoming quality control act, example,

22 Act on the actual quality and ballasting capacity of products, example,

23 Report on preliminary testing of the pipeline, example,

24 Certificate of pneumatic testing of the pipeline for strength, example,

25 Report of pneumatic testing of a gas pipeline, example,

26 Certificate for cleaning the cavity and calibrating the gas pipeline, example,

27 Preliminary test report for a gas pipeline valve unit, example,

28 VIC certificate of welds, example,

29 Report on the results of incoming inspection of materials and equipment - Bobyshka, example

30 Certificate of inspection of the technical condition of the PP MNPP, form,

Acts on the construction of a water supply and sewerage network:

1 Act on conducting a hydraulic test of a pressure pipeline for strength and tightness, form,

2 Report on conducting pneumatic testing of the pressure pipeline for strength and tightness, form,

3 Certificate of washing and disinfection of the household pipeline. drinking water supply, form,

4 Act on the flushing and disinfection of pipelines of KhGSV, form,

5 Certificate of flushing (blow-down) of pipelines, form,

6 Act on flushing pipelines, example,

7 Washing act, example

8 Certificate of hydrostatic or manometric leak testing of pipelines, form,

9 Hydrostatic or manometric leak test report, example

9a Act on conducting hydrostatic and pressure testing for strength and tightness, example,

10 Test report for the internal sewerage system and drains for spillage, form,

11 Test report for the internal sewerage and drainage system, example,

11a Act on testing sewerage and drainage systems, example,

12 Test report for internal fire water supply for water loss, form,

13 Certificate of individual testing of equipment (pumps, water heaters, etc.), form,

14 Certificate of individual testing of equipment (pumping station), example,

15 Certificate of acceptance of the system and releases of internal sewerage, example,

16 Act on conducting a hydraulic test of a pressure pipeline for strength and tightness, form,

17 Certificate of acceptance hydraulic testing of the pressure pipeline for strength and tightness, form,

17a Certificate of acceptance hydraulic testing of a pressure pipeline for strength and tightness, example,

18 Certificate of acceptance hydraulic testing of a free-flow pipeline for tightness, example,

19 SK Act on conducting an acceptance hydraulic test of a gravity pipeline for tightness, example 2,

20 NVK Act on conducting an acceptance hydraulic test of a sewer well for tightness, example,

21 Certificate of completion of work on installation of pumping station and pumping unit, example

22 Certificate of work performed on installation of insulation of storm sewer pipelines, example

23 Inspection report for storm sewer structures, form

24 Act on the readiness of on-site and (or) in-house networks and equipment, form,

25 Act on connection (technological connection) to the central water supply system, form,

26 Act on delimitation of balance sheet ownership, form,

Acts on the construction of a heat supply network:

1 Certificate of acceptance into operation of the heating network, form,

2 Certificate of acceptance for operation of the heating pipeline, form,

3 Certificate for flushing the heating network, form,

3a Certificate of flushing (blowing) of heating system pipelines, example,

4 Certificate of visual and measuring inspection of heating network pipes, form,

5 Hydraulic test report of the heat consumption system, form,

6 Report on hydraulic testing of the heating network pipeline during technical examination, form,

7 Certificate for inspection of the heating pipeline when opening the gasket, form,

8 Act on the layout of the heating network route, form,

9 Certificate of readiness of the gas boiler house for operation, form,

10 Certificate of readiness of the coal boiler house for operation, form,

11 Certificate of readiness of heating systems and heating networks of the subscriber, form,

12 Certificate of readiness of the heating point for operation in winter conditions, form,

13 Act on conducting a trial fire in houses, form,

14 Report on testing the water heating network for the maximum temperature of the coolant, form,

15 Certificate of stretching of compensators, form,

16 Act on stretching compensators, form,

17 Certificate of thermal testing of a central heating system for effect, example,

Acts on electrical installation work:

1 Incoming inspection report (on the results of checking materials, equipment, etc.), example.

2 Certificate of readiness of the construction part for electrical installation work, form,

3 Certificate of readiness of the construction part of the premises for electrical installation work, example,

4 Certificate of inspection of the lighting network for the functioning and correct installation of installed machines, form,

5 Certificate of checking the lighting network for operation and correct installation of installed machines, example,

6 Certificate of checking the lighting network for correct ignition of internal lighting, example,

7 Certificate of technical readiness for electrical installation work, form,

8 Certificate of technical readiness for electrical installation work, example 1,

9 Certificate of technical readiness for electrical installation work, example 2

+ ,

10 Certificate of technical readiness for electrical installation work, example 3,

11 Certificate of technical readiness for electrical installation work, example 4,

12 Certificate of technical readiness for electrical installation work, example 5 +

13 Certificate of approval of the electrical installation for operation, form,

14 Certificate of acceptance of a trench for cable installation, example,

15 Certificate for electrical installation work during the construction of electrochemical protection devices (VSN012-88), form

16 Certificate of acceptance of electrical equipment for installation (VSN012-88), form

17 Certificate of acceptance of the transfer of electrical equipment for installation, example +

18 Act of laying out underground grounding axes from a strip, example +,

19 Certificate of checking the reliability of fastening lamps, example,

20 Act of acceptance of the transfer of executive documentation, example,

21 Certificate of delivery of equipment, example,

22 Certificate of delivery of apartment meters, example,

23 Act for temporary connection of power to an existing transformer substation, RTP, example,

24 Visual inspection report of electrical equipment, example

25 Report on checking the insulation resistance of electrical circuits of power electrical equipment, example

26 Certificate of checking the resistance of grounding circuits, example

27 Act on the technical condition of the electrical equipment of the facility, example,

28 Certificate of acceptance of construction and installation work for tread protection, form,

29 Certificate of acceptance for installation of a power transformer, form,

30 Act of laying out a trench for laying a power cable, example,

31 Certificate of acceptance of trenches, channels, tunnels, blocks for installation (laying) of cables, example

32 Certificate of external inspection of the drum and cable, example,

33 Acceptance certificate for laying cables in a trench before backfilling, example

34 Certificate of technical supervision of cable laying, example,

35 Report on identified equipment defects, example,

Painting certificates:

1 Certificate of inspection and quality control of the preparation of metal structures for anti-corrosion protection work, form 1, example,

2 Certificate of inspection and quality control of the preparation of metal structures for anti-corrosion protection work, form 2, example,

3 Certificate of acceptance of anti-corrosion preparation of automatic transmission of metal structures, form 3, example,

You may be interested in: “Does the lack of executive documentation exempt you from payment for work performed?”

Acts on ventilation and air conditioning:

1 Certificate of commissioning of ventilation and air conditioning systems, example,

2 Certificate of completion of commissioning of ventilation systems, example,

3 Certificate of individual testing of ventilation system equipment, example,

4 Certificate of acceptance and commissioning of ventilation systems, example,

5 Act of the working commission on acceptance of equipment after comprehensive testing, example,

6 Test report for drainage pipeline systems, example,

7 Acceptance certificate for air conditioning systems, example,

8 Certificate of hydrostatic test or manometric leak test, example,

9 Certificate of individual testing of air conditioning system equipment, example,

10 Certificate of completion of commissioning of the air conditioning system, example,

11 Act of flushing the fan coil cooling system, example,

Acts on fire alarms, emergency fire alarm systems and fire alarm systems, sprinkler systems:

1 Fire alarm inspection report, form,

2 Security and fire alarm inspection report, form,

3 Certificate of transfer of equipment, products and materials for installation (according to the form of the State Statistics Committee of the Russian Federation), form,

4 Certificate of readiness of buildings and structures for installation work, form,

5 Certificate of completion of installation work, form,

6 Certificate of completion of installation work of the alarm system, example,

7 Certificate of measurement of insulation resistance of electrical wiring, form,

8 Certificate of completion of commissioning work, form,

9 Certificate of completion of commissioning and commissioning works of the APS and SOUE systems, example,

10 Thermal test report of the heating system for effect, example,

11 Certificate of inspection of instruments and automation equipment, form,

12 Certificate of acceptance into operation of automation equipment, form,

13 Certificate of acceptance of technical means of emergency fire alarm system and SOUE into operation (Certificate of acceptance of alarm systems), example,

14 Certificate of technical readiness of the fire alarm system, example,

15 Report of hydrostatic or manometric leak test - fire sprinkler system), example,

16 Certificate of acceptance of APT technical equipment into operation - automatic fire alarm system APS, example,

17 Act of flushing the fire sprinkler system, example,

18 Certificate of acceptance of technical signaling equipment into operation, form,

Acts on the construction of a communication network, SCS, ACS:

1 Certificate of individual testing of SCS equipment, example,

2 Certificate of acceptance of SCS technical equipment into operation, example,

3 Certificate of technical readiness of SCS systems, example,

4 Certificate of cable tightness at the installed reinforcement section (form 18 MVLKS), form,

5 Certificate of individual testing of ACS equipment, example,

6 Acceptance certificate for ACS systems, example,

Elevator installation certificates:

1 Certificate of complete technical inspection of the elevator (from an accredited testing laboratory), form,

2 Certificate of acceptance of the elevator into operation (PUBEL form), form,

3 Certificate of readiness of the elevator for commissioning, form,

4 Certificate of transfer of the elevator for inspection, form,

5 Certificate of inspection of metal structures, welded joints, elevator components using non-destructive testing methods, form,

6 Inspection report for an elevator that has completed its standard service life, form,

7 Inspection report of the construction part of the elevator installation for installation, form,

Acts on road works:

1 Certificate of sampling of materials for road markings, form,

2 Certificate of laboratory testing of material for road markings, form,

3 Act of operational quality control of road marking devices, form,

Acts on the construction of a base station:

1 Acceptance certificate for completed work on constructing a container fencing, example,

2 Acceptance certificate for installation and grounding of metal structures of the feeder route, example,

3 Certificate of acceptance of work on laying, cutting, grounding the HF feeder, installation and sealing of HF connectors, example,

4 Certificate of acceptance of work on the power supply system, example,

5 Acceptance certificate for completed work on the climate system, example,

6 Certificate of technical acceptance of base station technological equipment, example,

Acts on roofing works:

1 Roof acceptance certificate, form,

2 Certificate of acceptance of roof transfer, example,

3 Certificate of measurement/measurement of the roof, example,

4 Roof inspection report, example,

Acts applied on the Russian Railways:

1 Cable box installation certificate, form,

2 Damage report at a traction substation, form,

3 Report on damage to the contact network, form,

4 Report on damage to power supply devices of signaling systems and other non-traction consumers, form,

5 Act on violation of the normal operation of special self-propelled rolling stock of the JSPS, form,

Acts on general construction works:

1 Certificate of sealing of entry and exit points of utility lines, form,

2 Certificate for sealing technological holes, form,

3 Report on conducting a hydraulic test of a free-flow pipeline for leaks, form,

4 Act on laying out the axes of a building on the ground, form,

5 Act of laying out the axes of a capital construction project on the ground, form,

6 Act of laying out the axes of a capital construction project on the ground, example 1,

7 Act of laying out the axes of a capital construction project on the ground, example 2

8 Act of laying out the axes of a building, example +,

9 Report on the results of testing the gravel-sand mixture technical. documentation, example,

10 Report on the results of checking the fittings for compliance with technical specifications. documentation, example

11 Test report for fittings for glass pipelines, form,

12 Certificate for degreasing fittings, connectors and pipes, form,

13 Report on the results of testing bitumen-polymer mastic for compliance with technical specifications. documentation, example

14 Cable duct inspection report, example,

15 Certificate of inspection of cable ducts in trenches before closing

16 Certificate of inspection of cable ducts in trenches and channels before closing,

17 Certificate of inspection of pipe piles before immersion, example,

18 Dynamic load test report for piles, form,

19 Pile field acceptance certificate, example,

20 Interim acceptance certificate for critical structures, example

21 Test report for structures, buildings and structures, form,

22 Act of cleaning the cavity of the whips when performing welding and installation work, example,

23 Act on securing the route, site (VSN012-88), form

24 Certificate for welding of the warranty joint, platform (VSN012-88), form

25 Certificate for welding a technological hole (VSN012-88), form

26 Certificate of acceptance of the crane unit, unit for receiving and starting up cleaning devices for adjustment and backfilling (VSN012-88), form

27 Act on bank protection and bottom protection works (VSN012-88), form

28 Certificate for the execution of earthworks (at the facilities of JSC Russian Railways), form,

29 Act on the production of control samples of concrete, form,

30 Act on the production of control samples of building masonry mixture, example,

31 Test report for fasteners, example,

32 Certificate for installation and testing of a drilling machine, example,

33 Corrosion inspection report of an underground structure, form,

34 Certificate of readiness for concreting in sliding formwork, form,

35 Act on verification of the implementation of measures to ensure uninterrupted high-quality construction of objects in the autumn-winter period, form,

36 Inspection report of a building located near the designed pile foundations, form,

37 Facility inspection report for major repairs, form,

38 Premises inspection report, form,

39 Certificate of inspection of dead-end stops, form,

40 Certificate of inspection of dead-end stops of load-lifting cranes, form,

41 Act of general autumn inspection of the building (on readiness for winter), form,

42 General spring inspection report of buildings, form,

43 Certificate of determination of the strength of concrete of reinforced concrete structures, form,

44 Act of inspection of green spaces, example,

Other acceptance and transfer certificates:

1 Acceptance certificate for transfer of equipment for installation, form,

2 Certificate of acceptance of transfer of equipment, example,

3 Act of acceptance of the transfer of an object for work, example

4 Certificate of acceptance into operation, example

5 Certificate of acceptance of trenches for cable installation, example,

6 Act of the working commission on acceptance of work performed at the site, example,

7 Act of the state acceptance commission on acceptance of the object, form,

8 Certificate of acceptance and transfer of executive documentation of ITD, example,

9 Certificate of acceptance of equipment after checking construction readiness, example,

10 Act of transfer of temporary operational and sanitary maintenance of an object, example,

11 Certificate of acceptance of laid and ballasted pipeline (VSN012-88), form

12 Interim acceptance certificate for connection areas of compressor stations, oil pumping stations, receiving and starting units for treatment devices, gas flow measurement and reduction units (VSN012-88), form

13 Interim acceptance certificate for the passage of a pipeline through a road or railway (VSN012-88), form

14 Interim acceptance certificate for the pipeline crossing a water barrier (VSN012-88), form

15 Certificate of acceptance of the finished trench for laying (VSN012-88), form

16 Certificate of acceptance of completed work, form,

17 Acceptance certificate for completed work, form,

18 Certificate of acceptance of trenches, channels, tunnels and blocks for installation of cables, form 14A (word), example,

19 Lightning protection acceptance certificate, form,

20 Lightning protection acceptance certificate, form IGASN No. 44/99 (word), example,

21 Act of the commission on acceptance of work performed to preserve a cultural heritage site, form,

22 Certificate of acceptance for operation of electrical protective installations, form,

23 Certificate of acceptance of work on current repairs of linear structures, form,

24 Certificate of acceptance into operation by the working commission of a completed construction of a separate building, built-in or attached premises included in the facility, form,

25 Certificate of acceptance of a completed construction facility, form,

26 Act of the working commission on the acceptance into operation of a completed building, structure, premises, form,

27 Report of the working commission on acceptance of equipment after individual testing, form,

28 Equipment acceptance certificate, form,

29 Act of the working commission on acceptance of equipment after comprehensive testing, form,

30 Certificate of acceptance into operation by the working commission of elements of a residential building completed with major repairs, form,

31 Act on acceptance into operation by the working commission of parts of a residential building completed with major repairs, form,

32 Certificate of acceptance of completed works on improvement of public territory, example,

Other inspection reports:

1 Certificate of verification of technological properties of electrodes, form, download rar.

2 Certificate of quality control of the applied protective coating, example,

3 Certificate for checking the laying of the pipeline at the crossing of a water barrier (VSN012-88), form

4 Report on the results of testing products for compliance with technical documentation (VSN012-88), form

5 Report on the results of product inspection, example of filling

6 Instrumental verification report (word), example,

7 Emergency oil pipeline inspection report, example,

8 Certificate of checking the quality of foundation soils in an open pit, example,

9 Certificate of geodetic inspection of the bridge in plan, form,

10 Report of a comprehensive inspection of a highway section, form,

11 Certificate of control check of the carrying capacity of the ice crossing, form,

12 Certificate of control check of topographic and geodetic works, form,

13 Certificate of inspection by external inspection and measurement of the dimensions of seams of welded joints, form,

14 Certificate for checking the welding technological properties of electrodes, form,

Other incoming control acts:

1 Incoming quality control report, form,

2 Certificate of incoming quality control, example,

3 Incoming inspection report example - pierced mineral mats M100,

4 Certificate of incoming inspection of a batch of pipes made of polymer materials, form,

Other certificates of compliance:

1 Certificate of compliance of the parameters of the constructed (reconstructed, repaired) capital construction facility with the design documentation, including the requirements for equipping the capital construction facility with metering devices for the energy resources used, form,

2 Certificate of compliance of the constructed (reconstructed) capital construction facility with the requirements of technical regulations, form,

3 Certificate of compliance of the constructed or reconstructed capital construction facility with the requirements of technical specifications, form,

Other test certificates:

1 Report of hydraulic, pneumatic, combined strength test, leak test (VSN012-88), form

2 Hydrostatic test report for boilers, form,

3 Hydrostatic leak test report, form,

4 Certificate for preliminary testing of the pipeline and sections of categories B and 1 (VSN012-88), form

5 Individual equipment testing report, form,

6 Certificate of testing of pipe lines for strength and density, form,

General acts:

1 Certificate of completion of installation and commissioning work, example

2 Act of organization and implementation of emergency response and investigation of the causes of the accident, form,

3 Certificate for backfilling, deboning of a laid pipeline, example,

4 Act on monitoring the continuity of the insulating coating of a pipeline, example,

5 VIC certificate of welds, example,

6 Act on monitoring the continuity of the insulating coating of a buried pipeline (VSN012-88), form

7 Certificate of assessment of the quality of insulation of underground pipeline sections completed by construction, using the cathodic polarization method (VSN012-88), form

8 Certificate for cleaning the pipeline cavity (VSN012-88), form

9 Certificate for laying a protective casing when crossing a pipeline through a road or railway (VSN012-88), form

10 Certificate for geodetic preparation of the route, site (VSN012-88), form

11 Certificate for backfilling of the laid pipeline (VSN012-88), form

12 Certificate of approval for construction and installation work on the territory of an enterprise, residential area, form

13 Report on industrial accident, form

14 Report on an accident at work, form,

15 Act on the posting of material assets, example,

16 Act of downtime (on suspension of work), example,

17 Certificate of visual and measuring control of welded joints, example,

18 Pipeline inspection and rejection report, example,

19 Act on suspension of construction, form KS-17, form,

20 Certificate of quality of soil strengthening, example,

21 Act of anchoring the load-bearing, bracing, traction rope in the coupling, form,

22 Rope installation certificate, form,

23 Certificate of commissioning of a completed construction of a utility infrastructure facility, form,

24 Act of weighing counterweights, form,

25 Act of visual inspection of an object damaged as a result of an emergency, form,

26 Act of selection of land plot, form,

27 Certificate of defects during construction and installation work, construction and installation work, form,

28 Certificate of release from major repairs, form,

29 Certificate for the release of the car from repair, form,

30 Certificate of guaranteed welded connection, form,

31 Act on substandard and incomplete products, form,

32 Certificate of shortage (surplus) detected upon acceptance of products at the recipient’s warehouse, form,

33 Certificate for flushing (purging) of the pipeline, form,

34 Certificate of delivery for major repairs, form,

35 Act on write-off of low-value and wear-and-tear items, form,

36 Certificate of external inspection of equipment upon arrival at the warehouse, form,

37 Certificate of adjustment of instruments and automation equipment, form,

38 Certificate of completion of work on installation of automation systems, form,

39 Act on assigning a car to the driver (drivers), form,

40 Act on the implementation of a quality management system for the operation of construction machines, form,

41 Report on identified defects in technical signaling equipment, form,

42 Report on identified equipment defects, form,

43 Act of the working commission on the readiness of the completed construction of the building, form,

44 Act on the replacement of engineering equipment that has not served its service life, form,

45 Certificate of recertification of flaw detectorist, form,

46 Report on the results of the analysis of the state of production, form,

47 Certificate of conformity of materials used, form,

48 Certificate of compliance of completed off-site and on-site preparatory work with labor safety requirements and readiness of the facility for the start of construction, form,

49 Certificate of completion of off-site and on-site preparatory work and readiness of the facility, form,

50 Report on the cost of repair work performed, form,

You can order the preparation of ID, acts, journals and other things in the section: “Order ID”

Return to the section: “Acts, protocol diagrams, etc.”

See the composition of the executive in the section: “Composition of the executive”

Download acts, protocols and more in the section: “Acts and other”

Download useful books, GOSTs, SNIPs in the section: “GOSTs and books“

Regulatory Standards

To properly carry out pressure testing of networks, you need to know the regulatory framework. This knowledge is also important when carrying out design and installation work.

The main recommendations for conducting hydraulic tests are listed in SNiP number 41-01-2003:

when carrying out test work in the structure, the temperature must be maintained at least zero degrees;
when determining the crimping pressure, adhere to the data on the maximum permissible pressure that the materials and equipment used can withstand (the crimping pressure should not exceed the limit values);
the pressure in the system during testing must exceed the performance indicators of the equipment and materials used by 50% (however, this value cannot be less than 0.6 MPa).

Another regulatory document (SNiP number 3.05.01-85) contains the following information:

All large-unit elements can only be tested at the assembly site.
If during testing the pressure in the system drops, then you need to inspect the entire line and instruments to identify the location of the leak. After this, repair work must be carried out to eliminate the leak. Then activities to check the tightness of the networks continue.
If wedge valves and valves are installed on the main line, then pressure testing can be carried out by turning the control handle twice.
If non-factory assembled devices are used in the circuit, they are crimped on site.
If hidden piping is used in the house, then these areas are pressurized before finishing work is carried out.
Pipelines that must be insulated are checked for leaks before installing thermal insulation material.
During testing, membrane tanks and hot water boilers must be turned off.
The heating system is considered working if the pressure test does not decrease within half an hour, and if it is not possible to visually detect leaks.
Additionally, the heating circuit is checked for uniformity and correct heating. To do this, the network supplies coolant with a temperature of at least 60°C for 7 hours.

In what cases is the act filled out?

The document is required at the time of acceptance of gas, heat and water supply. We are talking about both a newly opened system and one that has undergone repairs or scheduled maintenance. The most common type of pressure testing is hydraulic testing of the water supply system. The entire set of tests is designed in such a way as to check the operation of the system under various conditions.

After filling out the form, you should check it

One form of acceptance testing is water hammer simulation. The system is under high pressure, the value of which is several times higher than the standard values.

The operator evaluates how the degree of tightness of the entire pipeline changes. During hydrotesting, not only the tightness is tested, but also the quality of the existing joints. In most cases, they are the cause of failure of a separate section. In addition to the pipeline, terminal equipment is subject to control. The heating system installed at the consumer's place, taps and gas stoves - all this needs to be checked.

Each stage of control is regulated by a separate SNiP:

41-01-2003;
3.05.01-85;
Rules for technical operation of thermal power plants.

https://www.youtube.com/watch?v=ruN3puj3EyU

The regulations for conducting hydrostatic testing are prescribed in several regulations. They regulate the order and timing of tests. Consumers of utility services should remember that compliance with these deadlines is in their interests. Preventive examinations allow you to detect problems at an early stage.

Components of the heating system pressure test report

It is important to provide names and other information accurately and in detail. In this case, an address is required. The main part of the act states:

The main part of the act states:

City.
The date of signing the act (and the pressure test itself).
Heat supply organization: its form of ownership, name, full name of the representative.
Which of the subscriber's representatives accepted the heating system after the test: full name, position.
To what indicators the pressure in the system was raised is indicated in kgf/cm2.
To what indicators did it drop after 10 minutes following the shutdown (the units of measurement here are also kgf/cm2, it is also permissible to measure it in mPa if accurate data on this matter is available).
Whether the system passed or failed the test (the person completing the form needs to highlight the correct option).

The final part consists of the signatures and seals (if any) of the representatives:

Subscriber.
Heat supply organization.
Service organization.

In general, the act of pressure testing the heating system is a convenient primary document, for filling out which the heat supply organization is responsible.

The heating system is an important element of any home

Therefore, it is extremely important that it works flawlessly. The most common heating system today is a water circuit. To avoid various unpleasant moments, you should carefully monitor the serviceability of the pipeline

To avoid various unpleasant moments, you should carefully monitor the serviceability of the pipeline.

To do this, before putting the house into operation, after heating repairs and every time after the heating season in the warm season, the entire heating system must be checked for its correct and reliable operation: are there any hidden defects, are all connecting fittings and butt joints in working order and other. This test is usually called pressure testing of the heating system.

How are hydropneumatic tests carried out?

In service organizations, all testing and flushing processes are carried out after the end of the heating season in order to have enough time before the next winter to carry out repair work. It is recommended that private owners follow the same principle. In the fall, after filling the system with water, it needs to be checked again so that no surprises arise during the cold season. The testing process is carried out in the following order:

As soon as the heating season ends, you need to check the condition of shut-off valves, heating and elevator units, and pipeline risers in multi-story buildings.
After this, the risers are washed to prevent seasonal contamination.
After this, all other components and assemblies of the heating system are monitored for leaks. Identified deficiencies are eliminated, and damaged elements are replaced with new ones.
In the basement, the thermal insulation of pipelines is monitored.
Then test activities are carried out and the system is filled with coolant if everything is normal. The liquid can safely remain inside the system, waiting for the next season, because the pressure in it is much less than during testing.

During the preparatory work, all existing leaks must be eliminated.

The test procedure is as follows: the system is filled with coolant, after which a compressor is connected to it and it is pumped up to the test pressure level, which is prescribed in SNiP.

Manual compressor connected to the heating system

Special pumping equipment for pressurizing can be manual or electric. It has instrumentation that measures pressure. The pressure gauge has parameters and a scale that meets the necessary requirements.

The pressure gauge has parameters and a scale that meets the necessary requirements

For example, a pressure gauge with accuracy class 1.5 is used to monitor pressure. The diameter of its body must be no less than 160 mm, the division value should not be more than 0.1 kgf/cm2, which is 0.1 atmosphere or 0.01 mPa. The maximum measured value shall not be less than 4/3 of the pressure used during testing. It is worth noting that the pressure gauge, like any other measuring device, must be checked and sealed by the state metrological service.

The test pressure values, in accordance with the norms and regulations, on main pipes should be 16 kgf/cm2 (1.6 MPa)

This pressure is maintained for 5 minutes, after which it is reduced to working pressure and all components and parts of the system are inspected, paying special attention to the condition of the shut-off valves. The test is considered successful if no leaks, breakthroughs, or fogging of oil seals and flanges were detected.

At the initial start-up, intra-house wiring is tested at a pressure one and a half to two times higher than the working one, and on the old system the pressure is increased by 25 - 50%. The test pressure values also depend on the devices installed in the system. The indicators can be presented in table form:

Pressure indicators depending on installed equipment

When testing, the coolant temperature should be no more than 40 - 45 degrees. The room temperature should not be negative. Before starting work, air pockets and air from the system are completely removed.

Manual pressurization of the pressure system

Indicators at which the test is considered successful

Test pressure testing confirms the suitability of the system for operation subject to the following indicators:

If the system is water or steam, then the pressure drop in a 5-minute time interval does not exceed 0.2 kgf/cm2 (0.02 mPa).
When using panel heat exchangers, the pressure should not drop by more than 0.1 kgf/cm2 (0.01 mPa) within 15 minutes.
When pressure testing a hot water supply system, this indicator should be less than 0.5 kgf/cm2 (0.05 mPa) in 10 minutes.
Any leaks, fogging, or wetting must be completely excluded.

A decrease in the above indicators indicates a malfunction that should be identified and eliminated. To identify it, you need to check absolutely all devices and components of the system. It is especially worth looking inside ceilings, walls and other difficult areas.

After identifying faults and eliminating them, crimping is carried out in full again. Only when positive results are achieved, working pressure is created in the system and a pressure test report for the heating system begins to be drawn up.

Types and principles of operation of pumps for pressure testing the heating system

Kinds

The classification of crimping devices is represented by the following main types:

manual pump;
electric pump.

The hand pump is a completely mechanical device. The big advantage of such a device is its low cost, as well as ease of operation and not pickiness. Typically, mechanical devices contain all the necessary components at once - hoses, a pressure gauge and a tank. Among the negative aspects, it is worth noting the low level of productivity. If you use this device yourself, you will have to make great efforts to perform high-quality work to check the system.

Based on the description of the manual pump, the following positive aspects can be identified:

low cost;
ease of use;
high mobility;
does not require power supplies.

Although electrically driven devices are more expensive and more cumbersome, the effort required to use them is kept to a minimum. Such a hydraulic pump can provide almost any level of pressure in the system. In many cases, these electrical devices are used by professionals when crimping work needs to be carried out frequently and on large objects. Electrical instruments allow you to check heating equipment, sanitary standards of technical devices, cooling and pneumatic devices.

The disadvantages of such equipment include the high cost, although there are many more advantages:

full automation;
Possibility of use on large objects;
saving time and effort;
high level of productivity.

How to choose?

When choosing a pump for pressure testing, you should consider two main factors:

the capacity of the heating system in which the pump will be used;
How often will pressure testing be carried out?

If the system check will take place in a small residential area and the frequency of checks will be rare, then it is not at all necessary to spend money on an electric pump. In this case, a hand pump will do just fine. But if the test involves pressure testing the system in a large room, then the power of a manual device may not be enough, so it is advisable to purchase an electric compression pump. Quite a lot of positive reviews are received by models not with a plastic case, but with an iron one, most often made of steel. And also in many devices there is a special valve that does not allow high pressure in the system during work. This aspect must also be taken into account when choosing a pump.

Connection

Before carrying out work to check the system, as well as connecting the pumping station to it, it is recommended to carefully read the connection diagram and take into account the design of the heating system itself. First, the system must be filled with water at a temperature above 5 degrees

Then a crimping device is connected to it using a hose. Typically a threaded connection is used. Under no circumstances should defects be repaired in a system with the crimping machine running. And also for safety reasons, it is not recommended to set the pressure too high, which can negatively affect the heating system and lead to its breakdown.

Models

Modern manufacturers offer a wide variety of models of pressure testing pumps.

Among the most famous, there are several options.

NIR-25. This model of pressure testing compression pump is intended for pressure testing and hydrotesting of heating systems. This device is manually driven and is recommended for use with small objects. The pump is compact and light weight. This device is perfect for personal use when conducting tests in a private home.
Compact-50. This model is made in Italy. Its advantages are contained in the name itself - it has small dimensions and light weight. This pump is equipped with a tank with a capacity of up to 12 liters, hoses and a pressure gauge.
UGI-1. Another one of the most commonly used models of pressure testing pumps. Such a device allows for high-quality testing of the heating system and is suitable for performing various tasks. UGI-1 is equipped with a 20-liter tank.

Preparing for the heating season

Hydrotesting of heat supply lines is an important factor for their uninterrupted operation. Over time, all elements of these engineering structures wear out and can fail at the most inopportune moment. To prevent this from happening, two important measures need to be taken before the start of the heating season.

More information on how to perform hydraulic tests of heating systems:

Hydraulic tests

Each building heating system has a certain operating pressure. It is this parameter that determines the level of heating of the premises, the quality of fluid circulation, as well as heat losses. The choice of the main operating pressure indicator is influenced by various factors - the type of building, its number of floors, the quality of the pipeline, etc.

Testing the heating system is needed to measure pressure and determine the level of heating

As the coolant moves through the pipes, a large number of different hydraulic processes occur. As a result, pressure drops are observed throughout the entire system, called water hammer. Due to these loads, the service life of all elements of the heating system is reduced. Thus, tests must be carried out at a pressure 1.2−1.4 times higher than the nominal value.

To carry out pressure testing, you must first fill the system with water. Then you need to raise the pressure to the calculated value, monitoring the process using a pressure gauge. After completing these steps, the system should remain pressurized for 30 minutes. If during this period of time it did not fall and there were no leaks in the system elements, then the test is considered passed.

It should be noted that in some situations a pressure drop of up to 0.1 atmosphere is allowed. In this case, a visual inspection should not reveal leaks, as well as violations of the tightness of threaded and welded connections. If the system fails the test, repair work is required. After their completion, crimping is performed again.

Testing your heating system can help identify leaks.

Flushing the system

An equally important activity in preparation for the new heating season is flushing the heating lines. In winter, the coolant circulates in a closed circuit. When water is heated and then cooled, salts are deposited on the pipes. This process occurs simultaneously with corrosion, which leads to the formation of a layer of scale on the internal walls of the pipeline.

As a result of reducing the cross-section of the pipes, the hydraulic resistance of the entire system increases, and the heat transfer rate of the batteries also decreases. In high-temperature heating systems, local overheating and subsequent formation of fistulas are possible. A hydropneumatic method is used to flush the heat supply line.

First, the line must be filled with water, after which a pneumatic compressor is connected to it. High air pressure increases the speed of fluid movement. In addition, additional turbulent water flows are created, causing vortex vibrations in places where scale accumulates, as a result of which contaminant particles are torn off the walls of the pipeline. The system can be flushed using special solutions that break down scale.

Guaranteeing uninterrupted heat supply to buildings - timely implementation of preventive measures. Before the start of a new heating season, it is imperative to pressure test the system and flush it.

In this video you will learn what pressure testing of a heating system is:

Components of the heating system pressure test report

It is important to provide names and other information accurately and in detail. In this case the address is required

The main part of the act states:

City.
The date of signing the act (and the pressure test itself).
Heat supply organization: its form of ownership, name, full name of the representative.
Which of the subscriber's representatives accepted the heating system after the test: full name, position.
To what indicators the pressure in the system was raised is indicated in kgf/cm2.
To what indicators did it drop after 10 minutes following the shutdown (the units of measurement here are also kgf/cm2, it is also permissible to measure it in mPa if accurate data on this matter is available).
Whether the system passed or failed the test (the person completing the form needs to highlight the correct option).

The final part consists of the signatures and seals (if any) of the representatives:

Subscriber.
Heat supply organization.
Service organization.

In general, the act of pressure testing the heating system is a convenient primary document, for filling out which the heat supply organization is responsible.

Hydropneumatic tests

Flushing and pressure testing of the heating network are processes that are performed after the end of the heating season. Hydropneumatic tests are organized to confirm the readiness of the system for launch during the heating season. The easiest way to carry out the procedure is in the fall after the main line has been idle in the summer.

The preparation and testing proceeds step by step as follows:

at the end of the heating season, check the condition of components, shut-off valves, pipelines and heating devices;
preventive network flushing;
elimination of leaks, depressurization of joints, replacement of worn-out equipment;
visual assessment of the quality of insulation in open sections of the pipeline;
carrying out hydropneumatic tests.

After checking, fill the system with coolant and leave until startup. If all checks are passed, the network is ready for operation; it will wait until the start of the heating season without loss of quality indicators. The tests are carried out under pressure higher than the working pressure, so the tightness due to the presence of coolant while waiting for the launch will not be compromised.

Hydropneumatic tests are carried out as follows:

The technician will fill the network with coolant. Then connect a manual or electric pump. It will raise the pressure level to a certain standard - the limit values are prescribed in SNiP. Injection is performed using equipment with built-in instrumentation.
After test measurements, the pressure decreases. If there are no defects, the system is considered suitable for continuous use.

Pressure control is carried out by pressure gauges with an accuracy class of 1.5, a division value of up to 0.1 kgf/cm2, and a body diameter of 160 mm. Untested pressure gauges without the seal of the state metrological organization are not allowed for use.

Indicators of pressure values during testing:

Types of networks, types of equipment	Test pressure
Water heaters for heating networks, hot water supply, elevator units, air heaters	Limit of 1.25 of the working pressure, but not lower than 10 kgf/cm2
Heating networks in multi-storey buildings with cast iron radiators or registers	Limit of 1.25 of the operating pressure, no more than 6 kgf/cm2
Heating systems with radiators made of steel, bimetal, aluminum panel/convector type	Not lower than 10 kgf/cm2
DHW system circuits	Based on the operating pressure plus 5 kgf/cm2, but not higher than 10 kgf/cm2

Conditions for confirming network readiness:

in water/steam networks, during 5 minutes of testing, the pressure dropped by no more than 0.0.2 MPa;
in a network with panel devices, the load indicator did not decrease by more than 0.01 mPa during 15 minutes of testing;
in the DHW network, the permissible decrease is up to 0.05 mPa within 10 minutes of testing;
there are no leaks, violations of the tightness of seams or joints.

If defects are detected, the technician repairs the leaks and then conducts tests again. The process is repeated until the requirements are met, then the pressure can be reduced to working pressure and a test report can be drawn up.

The need for pressure testing of the heating system

Probably not everyone is familiar with the definition of “pressure testing” - these are standard measures that are used to check heating equipment before operation.

Testing and inspection of the heating system must be carried out in the following cases:

When the installation was completed and the heating system was put into operation.
When any heating appliances were repaired.
When a part of the pipeline was replaced.
While preparing the system for the next heating season.

Measures to perform pressure testing of the heating system.

The nature of the pressure testing work is to check the tightness of the heating system, which involves the following actions:

The system is supplied with pressurized water or air using a hydraulic or pneumatic pump.
Possible leaks in the heating system are identified.
The places where water or air penetrates outside the heating system are determined.

If a modern heating system is used, such tests can be carried out by a minimum number of people, and leaks in the system can be detected using special equipment.

When excess pressure is created in the heating system, any faulty device, component or emergency area will become unusable. Suitable elements of the system do not lose their functionality due to such verification.

Purpose of testing

The main must be checked for integrity and tightness; this is precisely why the system was developed; testing of pipes and components makes it possible to timely detect gaps in threaded pipes and assess the tightness of heating or hot water supply connections.

Without such actions, one cannot count on a minimal threat from leaks and flooding of premises. Before putting the highway into operation, an inspection is carried out; this process is mandatory for implementation.

Hydropneumatic flushing

As mentioned earlier, hydropneumatic flushing of the pipeline heating system is carried out using a special pulp. This method of descaling pipes involves using a large amount of water. Houses connected to central heating or water supply use hot water circulating in pipes. If the heating system is located in a private house, then purification is carried out using cold water supply.

Hydropneumatic cleaning

When flushing the heating with hydropneumatic pressure cleaning, perform the following algorithm of actions:

the water is forced to circulate in the opposite direction to the heating, then it is started again;
together with the incoming liquid, compressed air is blown in using a compressor;

The resulting flow copes well with sludge, but does not sufficiently wash away salt deposits and rust formed on the walls of the pipeline and radiators. When risers are used in heating, during the process they are blocked in groups and washed. The fewer risers are included in the group, the better the radiators will be cleaned.

When cleaning the heating yourself, it is very important to carry it out until the waste liquid is as clean as possible and no longer contains rust particles or sediment.

Certificate of pneumatic testing of pipelines

Pneumatic method: diagnosis by pumping the system with high pressure air. Often the method is used for external systems if the temperature on the thermometer is less than +5 Celsius.

Requirements for drawing up test documentation:

Filling in the name of the city and the date of compilation.
Indication of the members of the commission (as in the hydraulic test, three parties are involved).
Description of the pipeline: length, diameter, material of pipes and joints.
Information about the pressure value: calculated value, to what value the pressure in the pipes was increased, final pressure, amount of reduction. The crimping time is indicated.
In the “Decision of the Commission” section, each of its members signs with a transcript if the pipeline has passed pneumatic diagnostics and is sealed and durable.

Certificate of testing of external and internal sewerage for spillage

A test report for internal and external sewerage is drawn up as a result of checking the operability of the system. It confirms the position of the commission that the system has withstood the test of a spill of water, and the design complies with the design documentation, GOSTs and standards.

Diagnostics of the normal functionality of the sewer system is necessary when installing a new facility or after carrying out repair work on an existing system. Information about the performance check is entered into the report. The form is drawn up in the form specified in Appendix “D” to the Code of Rules 73.13330.2012.

The act specifies:

name of the system and the facility in which it is installed;
information about the members of the commission. Representatives of three organizations are needed: the general contractor, the customer and the installation company;
information about the name of the project is written down;
the results are entered: the number of simultaneously connected devices, as well as the connection time or filling of water on the floor (unnecessary ones are crossed out);
the third paragraph states that no leaks were detected at the joints and through the walls. This means the system is suitable for use.

The decision is signed by the members of the commission.

Heating system pressure test certificate

This document displays the following information:

What type of crimping method was used?
The project in accordance with which the circuit was installed;
The date of the inspection, the address where it was carried out, as well as the names of the citizens who sign the act. This is mainly the owner of the house, representatives of the repair and maintenance organization and heating networks;
How the identified faults were eliminated;
Test results;
Are there any signs of leakage or reliability of threaded and welded connections? In addition, it is indicated whether there are drops on the surface of the fittings and pipes.

Personnel requirements

Important! It is allowed to independently check the heating equipment of a private home only.

All technological operations must be performed by trained personnel with established qualification tolerances, using certified equipment.

To do this, employees are required to undergo training (a special training course for six months) and certification of knowledge of the rules of operation of thermal installations and safety equipment (at least once every 3 years, and for personnel directly involved in testing, adjustment and maintenance of equipment - once every year).

After completing the training, an extract from the employee testing protocol is issued. It is provided for admission to personnel of the organization performing operation, maintenance and pressure testing of thermal installations.

Extract from the employee testing protocol.

The corresponding columns indicate:

Full name of the employee;
date of previous inspection;
date of current inspection;
Assessment of knowledge;
employee signature;
date of next certification;
Full name of the members of the selection committee of 3 people (including the Rostechnadzor engineer) and their signatures.

The employee is issued a qualification certificate with stamps and marks indicating that he has been trained.

Certificate of admission to high-risk work.

The results of the training are displayed in the log of personal checks of the employee of the organization allowed to perform hydrostatic or manometric tests.

Journal of personal checks of an organization's employee.