1.1 Subject content This specification specifies the requirements, quality assurance regulations and delivery preparations for high-pressure air right-angle check valves with nominal pressures PN20.0MPa and PN25.0MPa. 1.2 Scope of application This specification applies to the high-pressure air system of submarines.
CB 591-1996 history
1996CB 591-1996 Specifications for High Pressure Air Right Angle Check Valves