API STD 594:2022
Superseded
View Superseded by
Check Valves: Flanged, Lug, Wafer, and Butt-welding
English
02-10-2022
09-16-2026
This standard covers the design, materials, face-to-face dimensions, pressure-temperature ratings, inspection, examination, and testing requirements for two types of check valves.
| DocumentType |
Standard
|
| Pages |
33
|
| ProductNote |
This standard also refers to ASME BPVC, Section VIII, ASME BPVC, Section IX This product is unavailable in Cuba, Iran, North Korea, Syria
|
| PublisherName |
American Petroleum Institute
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| MSS SP-134:2025 | Valves for Cryogenic Service, Including Requirements for Body/Bonnet Extensions |
| ANSI/MSS SP-25-2018 | Standard Marking System for Valves, Fittings, Flanges, and Unions |
| ANSI/MSS SP-44 : 2019 | Steel Pipeline Flanges |
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