Aerospace - Valves, Check, Hydraulic, Aircraft and Missile
ARP4946
This SAE Aerospace Recommended Practice (ARP) establishes the general requirements for spring-loaded, normally closed check valves for use in Type I, Type II, or Type III aircraft and missile hydraulic systems having nominal operating pressure shown in Table 1.
Rationale: A revision to this document has been deemed necessary to clarify the suggested test requirements and the success of those test requirements. Project number A6C5-11-1