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API STD 594:2026

Current

Current

The latest, up-to-date edition.

Check Valves: Flanged, Lug, Wafer, and Butt-welding

Available format(s)

PDF

Language(s)

English

Published date

15-09-2026

£124.52
Excluding VAT

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
45
PublisherName
American Petroleum Institute
Status
Current
Supersedes

£124.52
Excluding VAT