An example of filling out an act of hydraulic testing of a pressure pipeline. Filling out the act of testing the water supply

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Upon completion of the installation of engineering systems, interested parties must sign an appropriate document - an inspection certificate hidden works. The acts can be signed by representatives of the installation organization, the general contractor, technical and architectural supervision, representatives of the Customer, representatives of the design organization, representatives of the operation service, authorized persons and others.

Certifies that the corresponding engineering system is installed in accordance with the project. The act indicates what works have been presented for examination, who completed the detailed design, materials and equipment used during installation, the dates for the start and completion of work, the decision of the commission on acceptance of work and permission for further repair and construction work. If deviations from the project occurred during installation, this is also reflected in the act.

The act of hydraulic tests confirms that the test has been carried out and the system passed it. Hydraulic tests are carried out in accordance with building codes and regulations.
Heating and water supply systems are tested by hydrostatic or manometric method in accordance with SNiP 3.05.01-85 (internal sanitary systems). More preferred is the hydrostatic method. The test is carried out with a pressure equal to 1.5 of the maximum working pressure. For different heating and water supply materials, the test time is different, but in any case, at least 10 minutes.

The water supply system is considered to have passed the test if, within 10 minutes of being under test pressure during the hydrostatic test method, a pressure drop of more than 0.05 MPa (0.5 kgf / cm²) and drops in welds, pipes, threaded connections, fittings and water leakage through flushing devices.
For the heating system, the pressure drop should not exceed 0.02 MPa (0.2 kgf/cm²).

Domestic sewer test produced by spilling water by simultaneously opening 75% of sanitary appliances connected to this section of the sewer. The system is considered to have passed the test if no leaks are found through the walls of the pipelines and through the joints. The test of internal drains is carried out by filling them with water to the level of the highest point. The test time shall be at least 10 minutes. The test is considered successful if no leaks are found during the inspection, and the water level in the risers has not dropped.

CERTIFICATE OF SURVEY OF HIDDEN WORKS AND ACTS OF HYDRAULIC TESTS (FORM)

Installation work, covert work act and the act of hydraulic tests are carried out by us in accordance with all building codes and regulations. When contacting “construction teams” and private craftsmen, you will not receive any agreed working documentation, neither correctly performed installation and executive circuits, nor test reports upon the fact of work performed. Therefore, you will not receive any guarantees for installation work. As a rule, private teams do not have the qualifications, experience and knowledge to perform engineering and technical support for work. There are frequent cases when these unfortunate installers are not even able to speak Russian, what kind of compliance with building codes and rules can we talk about? Therefore, if you want engineering systems to work correctly, last a long time and do not cause you unnecessary trouble, contact qualified specialists.

Kraft guarantees high quality works, clear documentary support of installation and design, and most importantly Attentive attitude to you!

After all installation work on the arrangement of water supply communications is completed, it is necessary to conduct a final test of the entire system in order to put it into operation in the proper form. Tests are carried out in order to identify possible defects in the operation of communication and their subsequent elimination. Stages of work on verification and full information on it are entered in the form of the act approved by SNiP. A sample or example of a document can be seen in our material below.

About how to correctly fill out the form for testing the plumbing system and what such work is, in our article.

Important: tests of the finished internal plumbing in most cases are carried out hydraulically using a large number of water under pressure above the general average. If the external water supply is to be tested, then at a temperature of +5 degrees, the hydraulic method can still be used, and at lower temperatures, the pneumatic method is used (pumping the communication with air under high pressure). Both methods in professional circles are called pipe crimping.

Before performing testing (pressure testing) of the finished water pipeline, it is necessary to stock up on a form of the act, in which all important data will be entered. The act is an official document from Appendix 1 of SNiP 3.05.04-85. The name of the document sounds like "Act on the acceptance hydraulic test pressure pipeline for strength and tightness.

The very first information that needs to be entered in the document is the city in which the testing work is carried out and the date of the event. Below is a list of committee members who will test the indoor/outdoor plumbing system.

The commission should normally include:

Representative of the organization that carried out the installation of all communications;
Representative from the technical supervision service of the customer;
A person representing the operating organization.

Moreover, it is worth prescribing the organization that the member of the commission represents, and his position in it, and his surname with initials.

You must specify below detailed information about the tested object. That is, enter its full name (you can take it from project documentation), indicate the numbers of pickets available at the boundaries of the facility, the total length of the water pipeline and its diameter, as well as the material from which the communication is mounted and pipe joints are made.

On this, the "header" of the official document is considered to be completely filled out.

Conducting system testing

So, when checking, the water consumption from each plumbing point is taken into account. It should be at least 0.2 liters per second.
It is worth considering the pressure of the water supply. This is especially important for the highest water intake points. In this case, the pressure should be at least 2-3 meters.
It is also worth checking the compliance of the parameters of the entire system according to the design documentation. Here they check the length, diameter of the pipeline, as well as the materials from which it is made.
Visual primary inspection of external and internal communications also avoids strong gusts of the system as a result of testing.
Pressure testing of the water supply system consists in supplying water under high pressure to the system. The testing time is at least 10 minutes. The pressure when supplying water to the system should be one and a half times higher than the maximum allowable for a particular communication.

Example: household plumbing is able to withstand a maximum gauge pressure of 0.45 MPa or just 45 meters of water column. Therefore, to test such sewerage and water supply, it is necessary to apply a gauge pressure of 0.675 MPa or simply 67.5 meters of water column.

Testing is considered successfully passed if no leaks or ruptures of the water supply (sewage) pipeline are detected under the influence of water.

Further completion of the act

After the pressure test has been carried out, it is necessary to enter data on the nominal gauge pressure for a specific communication and data on the gauge pressure used in testing in the act of testing the communication for tightness.
It is also worth indicating the brand of the pressure gauge that was used to test and measure the pressure readings in the system at the time of the test. Here it is also necessary to indicate the height of the measuring device relative to the axis of the pipes.
Another parameter that must be entered into the act of studying water supply or sewerage for tightness is the time during which the communication strait was made.
Further in the document indicate to what nominal value the pressure was reduced after the test. Lastly, the members of the commission conduct an inspection of the pipeline and sewerage and enter the results into an act.

Important: it is worth adding to the document all the stages of communication research that were applied in relation to a particular communication (whether the pressure periodically decreased when water was supplied, whether the water pressure was changed, etc.).

If there were no violations in the tightness of the water supply / sewerage system, then it is recorded in the “Results of the test” column that no leaks or breaks were found at the time of the test.
Below is the item "Decision of the Commission". In case of successful testing, the commission issues a permit for the commissioning of the water supply system.
Below, all members of the commission must put their signatures indicating their surnames and initials, as well as their positions.

After completion of the installation work, pressure pipelines for water supply and, if necessary, sewerage must be tested for strength and tightness. Based on the results of hydraulic tests, an act is drawn up in the form provided for by SNiP 3.05.04-85 “External networks and water supply and sewerage facilities”. The full name of the act is the act on the acceptance hydraulic test of the pressure pipeline for strength and tightness. It should be noted that an act in the above form is drawn up both during the preliminary and during the acceptance hydraulic test.

Act of hydraulic testing of pipelines we begin to fill in by entering data on the place of the test (name locality), as well as the date of approval of the act. Next, we enter data on the composition of the acceptance committee. The commission should include representatives of the construction and installation organization, the technical supervision of the customer, and the operating organization. You can familiarize yourself with the system of relations between participants in the construction process in more detail. For each member of the commission, we enter the following data into the act: the name of the organization and position, the surname and initials of the representative.

At the next stage of filling out the act, we indicate the name of the object (we find information about the name in the project or building permit), the picket numbers at the boundaries of the test section, the length of the section, the diameter and material of pipes and butt joints.

1. We indicate the working pressure of the pipeline (we take the information from the project) and the test pressure (we take the information from the project, or in case of its absence we calculate according to tables 4 and 5 of SNiP 3.05.04-85 for tightness and strength tests, respectively).

2. We enter into hydraulic test act test gauge data. It is necessary to indicate the accuracy class of the pressure gauge, the upper limit of measurements, the division value of the pressure gauge scale, as well as the height of the pressure gauge relative to the axis of the pipeline. In accordance with SNiP 3.05.04-85, only certified pressure gauges with an accuracy class of at least 1.5 with a scale for a nominal pressure of about 4/3 of the test pressure can be used for hydraulic testing.

3. We calculate the readings of pressure gauges for the values of the working and test pressure of the pipeline indicated above in the act. Indications are calculated according to the formulas that are indicated in the act.

4. According to table 6 from SNiP 3.05.04-85 we deduce and enter into act of hydraulic tests sample, which is presented on this page, the allowable flow rate of pumped water, first per 1 kilometer of the pipeline, and then for the length of the test section.

5. We describe the process of hydraulic strength testing, indicating the previously calculated values of test and working pressure, the time during which the test pressure was maintained, the results of inspection of pipelines for ruptures and leaks.

6. We describe the process of conducting hydraulic leak tests, indicating the test pressure for leaks, the start and end times of the test, the duration of the test, data on the water level in measuring barrels at the beginning and end of the test, the pressure gauge readings on the pressure drop in the pipeline at the end of the test, the volume of water required to restore pressure to the test pressure, the amount of water flow pumped into the pipeline during the test. The value of ΔР should be taken in accordance with Table 4 of SNiP 3.05.04-85. It should also be noted that the value of the test pressure for tightness Р g should not exceed the value of the acceptance test pressure of the pipeline for strength Р and.

If the pumped water flow rate does not exceed the allowable pumped water flow rate for a test section 1 km or more in length, which are indicated in Table 6 of SNiP 3.05.04-85, then such a pipeline is recognized as having passed the preliminary and acceptance hydraulic tests for tightness.

Based on the results obtained, the commission makes a decision whether the pipeline passed the hydraulic tests or not.

After completion of testing act of hydraulic testing signed by all members of the commission. Changing the form of the act and deviations from it are not allowed.

As you can see, the filling process act of hydraulic tests not complicated, and if you still have questions, then feel free to ask them in the comments, and we will try to answer them promptly. Be sure to subscribe to our resource in in social networks, and be among the first to receive new recommendations on maintaining as-built documentation.

(name of company,

position, surname, acting)

surname, acting)

drew up this act on conducting a pneumatic test for strength and tightness of a section of a pressure pipeline ________________

(Name

_____________________________________________________________

object and numbers of pickets on its borders)

Pipeline length _______ m, pipe material ___________, pipe diameter

mm, joint material _______

The value of the internal design pressure in the pipeline P p is equal to _________ MPa (______ kgf / cm 2).

For strength testing, the pressure in the pipeline was increased to ________ MPa (______ kgf / cm 2) and maintained for 30 minutes. No damage to the integrity of the pipeline was found. After that, the pressure in the pipeline was reduced to 0.05 MPa (0.5 kgf / cm 2) and the pipeline was kept under this pressure for 24 hours.

After the end of the exposure of the pipeline, the initial test pressure P n = 0.03 MPa (0.3 kgf / cm 2) was established in it. This pressure corresponds to the reading of the connected liquid pressure gauge P n = _________ mm of water column (or in mm of ker.st. - when the pressure gauge is filled with kerosene).

Test start time ____ h ____ min, initial barometric pressure P b n \u003d _______ mm Hg. Under this pressure, the pipeline was tested for _____ hours. After this time, the test pressure in the pipeline was measured P k = ____ mm w.c. (___ mm ker. Art.). In this case, the final barometric pressure P b k \u003d ____ mm Hg. Art.

The actual value of the pressure drop in the pipeline

R \u003d (R n - R k) + (R b n - R b k) \u003d _________ mm of water. Art.,

which is less than the allowable pressure drop in Table 6* (=1 for water and= 0.87 for kerosene).

Commission decision

The pipeline is recognized as having passed the pneumatic test for strength and tightness.

Construction and installation representative

organization __________________

(signature)

Representative of technical supervision

customer __________________

(signature)

Representative of the operating organization

nization __________________

(signature)

APPENDIX 4

Mandatory

The act of carrying out an acceptance hydraulic test of a non-pressure pipeline for tightness

City __________________ « » _____________ 19 _____

Commission composed of representatives:

construction and installation organization ____________________________

(name of company,

Technical supervision order-

position, surname, acting)

Chica ___________________________________________________________

(name of organization, position, surname, acting)

operating organization ____________________________________

(name of organization, position,

_____________________________________________________________

surname, acting)

drew up this act on the acceptance hydraulic test of a section of a free-flow pipeline ______________________

(Object name

_____________________________________________________________

numbers of pickets on its borders, length and diameter)

The groundwater level at the location of the upper well is at a distance of ________ m from the top of the pipe in it at a pipe laying depth (to the top) of ________ m.

The pipeline was tested by __________________________

(specify together or

Way ________________________

separately from wells and chambers) (specify the test method -

____________________________________________________________

addition of water to the pipeline or inflow of groundwater into it)

Hydrostatic pressure of ______ m of water. Art. Created by filling with water ______________________________________________

(indicate the number of the well or the riser installed in it)

According to Table 8* allowable volume added to pipelinewater, groundwater inflow per 10 m of pipeline length during the test

(strike out unnecessary)

30 min is equal to _______ l. Actual during the test volume of added water, groundwater inflow amounted to __________ l, or in

(strike out unnecessary)

recalculated for 10 m of the pipeline length (taking into account the test together with wells, chambers) and the duration of the test for 30 minutes amounted to ________ l, which is less than the allowable flow rate.

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