BS 1868 Steel check valves, flanged and butt-welding, petroleum industry

Is BS 1868 still current?

Yes. BS 1868:1975+A1:1990 is the latest edition MechAtlas found (MechAtlas review: 27 October 2026). Check the publisher for amendments before you specify it.

What it covers

Old British check valve spec, still listed current.

Parts that use BS 1868

• Check valve (UK (BS), related)
  Valve that lets flow pass one way and closes automatically to stop back-flow.
  Steel check valves for petroleum (1975 + A1 1990), still listed current.

Official source

MechAtlas does not reproduce standards. Check the official edition at the publisher's page for BS 1868 or the BS store.

Other valves standards

• API 598 / ISO 5208 / EN 12266-1 Changing
  Valve inspection and pressure testing
• API 526 / 527 / 520 / ISO 4126 Current
  Relief valve dimensions, seat tightness, sizing
• API 594 Current
  Check valves: flanged, lug, wafer and butt-welding
• API 598 Current
  Valve inspection & testing
• API 600 Current
  Steel gate valves
• API 602 / 608 / 609 Current
  Compact gate, ball, butterfly valves
• API 6D Current
  Specification for valves (absorbed RP 6DR)
• ASME B16.10 / EN 558 Current
  Face-to-face dimensions
• ASME B16.34 Current
  Valves — flanged, threaded & welding end
• AWWA C504 Current
  Rubber-seated butterfly valves (water)
• EN 1171 Current
  Cast iron gate valves
• EN 16767 Current
  Metallic check valves

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