Predelivery Testing of an Installation
Pipe installation must be passed through quality test after completion of assembly; Pinoplast’s customer service team provides this test upon receiving a call or request from our customers and the test is performed according to the following procedures:
- All valves in the installation are closed.
- Primarily the main valve is a little opened when filling the installation; pipe lines are carefully vacuumed at the highest and farthest usage point in order to avoid strong pressure impacts.
- Valves of each section are opened and tested separately.
There are 2 steps to perform the pressure test as follows:
STEP NO.1:
- Entire piping installation in the building is subjected to impermeability test for a period of 30 minutes at a pressure of 1.5 times the highest planned pressure.
- Pressure drops and leakages are observed between 10th. And 20th. Minutes.
- Pressure is increased again.
- Within the period of 30 minutes, no pressure drops higher than 0.6 bar and no leakage at any point should occur.
STEP NO.2:
A pressure of 1.5 times the highest planned pressure is applied for a period of 2 hours; no pressure drops higher than 0.62 bar and no leakage at any point should occur.
- If pressure at the manometer on which the test is monitored drops more than the values given above, it means a leakage exists. So leaking pipe line should be replaced or retightened.
- Entire installation should be washed out before beginning to use.
- Lines which will not be used should be closed and discharged against freezing.