What are the steps involved with hydrostatic testing?
Hydrostatic Test Service includes: (1) If a charge remains on the cylinder, it is emptied and the charge is processed and recovered for re-use. Halon extinguishers require special equipment. The charge must be emptied into a Halon Recovery Chamber, to comply with environmental regulations. (2) The head is removed (3) The inside of the cylinder is inspected for any signs of damage, rust, or corrosion. (4) The cylinder is filled with water and a high-pressure fitting is installed to allow pressure testing. (5) Water is manually pumped into the cylinder until the internal pressure is 2-3 times the normal operating pressure for the cylinder (typically 585 PSI, or as specified by the manufacturer). (6) Inlet valve is closed and the cylinder must maintain the minimum test pressure for at least 60 seconds. (7) The cylinder is inspected to verify that there are no signs of leaks, cracks, or bulges that would indicate a defective cylinder. (8) The pressure is then released and the cylinder is d
