Detection Content

Detection Purpose: Test valve packing for tightness, corrosion and other physical parameters of itself

Detection range: The valve packing

API 622-2011 type test for volatile leakage of valve packing during production.

API 622 specifies the requirements for comparative testing of valve stem packing used in production, where volatile leakage is considered. The packing shall be suitable for the temperature of -29~538℃ (-20~1000℉). The factors affecting volatile leakage considered in this standard include temperature, pressure, thermal cycling, mechanical cycling and corrosion.