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 .
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | ARP4946 |
| Product Name | Aerospace - Valves, Check, Hydraulic, Aircraft and Missile |