Problem description
The decoration has just ended up leaking water pipes, and the tiles have to be cut off and re-maintained. Where are the problems?
problem analysis
The water pipes buried in the wall will be subject to long-term water pressure in the future use, and the joints are prone to leakage. Therefore, all the water pipes involved in the construction must be pressure tested.
Two tests before and after the transformation: Before the construction, a pressure test shall be conducted to check whether the quality of the original water pipe buried in the house is qualified. It is better to have the property personnel present during the test.
After the construction of the waterway, the water pipe shall be pressured to test the bearing capacity of the pipeline.
>>>Relevant recommendation: User experience: Interior decoration preparation and hydropower reform
How to do pressure test?
1) Close the gate valve before pressure test.
2) Slowly fill the end of the pressure test pipe and drain the gas from the pipe. Sealed with water.
3) The pressure should be increased slowly with a manual pump or electric pump. The boost time should not be less than 10 minutes.
4) After ascending to the specified test pressure (8 pressures in the general waterway), stop the pressurization and observe if there is water seepage at the joint.
5) After the pressure is stabilized, the pressure drop within half an hour does not exceed 0.05 MPa.
Some points to note when pressing:
1. Close the gate valve when testing pressure
2. There is no water seepage at the main plug when pressure is applied
3, due to leakage of water meter valve during pressure, pressure drop may occur
4, waterways generally hit 8 pressure
solution
When doing the pressure test, use a hose to connect the hot and cold water pipes to ensure that the hot and cold water are pressed at the same time; install a pressure suppressor to prevent the air in the pipe from falling out so that the entire circuit is full of water.
After closing the water meter and the outside gate valve, the pressure is reduced to 1.5 times the working pressure and no leakage occurs. The pressure gauge shows that the pressure drop is within 0.05 MP.
Before the construction of the waterway, it is necessary to design in advance the location of water-related electrical facilities, such as water purifiers, water heaters, toilets, wash basins, etc.
Determine the type of water heater purchased in advance to avoid repeated construction.
Hydroelectric reform toilet interior decoration decoration design housing electrical
Guangdong Jishengke Industrial Co., Ltd. , https://www.suronart.com