Pressure release valve has spring-loaded piston which controls gas flow between two bores at angle to each other and is fitted with damping rod, spiral groove around piston guiding its movement in valve casing

摘要

The pressure release valve has a spring-loaded piston (6) which controls gas flow between two bores (A, B) at an angle to each other and is fitted with a damping rod (5), A spiral groove (20) around the piston guides its movement in the valve casing (10).