The water pressure steps:

 

 

According to the pressure test flow chart in the entrance test to the tube with water, until the highest position of the pipeline system exhaust valve in stable water flow out.

2 the pump up the pressure gradually from scratch, when pressure is close to the test pressure, pressure rise rate at this time no more than 500 Kpag per minute.

3 when pressure testing pressure holding 15 minutes, and then down to pressure of work pressure, check funnelled.

 

4 and then rose again to test pressure pressure after 5 minutes, then fell to work pressure, the pipeline to do secondary inspection.

5 after water pressure test, emptying water pressure test.

6 all temporary pressure blind flange shall be removed.

Pressure test equipment