API (check valve) ½’’-2’’

It is a forged reduced or full bore valve, piston, ball or Swing check type, horizontal or vertical mounting, manufactured according API standard.


1. In accordance with NACE MR01/75.
2. Full bore (FB) or reduced bore (RB).
3. Bolted or welded cover.


Size: from 1/4″ to 3″
Pressure: 800 – 2500LB
Material: A105, F304, F316, F304L, and F316L
Design and production standard: API602, BS5352, and ANSI B16.34
Socket-welded SW ends: ANSI B16.11
Screwed ends according to: NPT, ANSI B1.20.1
Butt-welded BW ends in accordance with: ANSI B16.25
Ends flanged in accordance with: ANSI B16.5, or EN-DIN
Test standard: API598, API 6D
Structure: Bolted cover/ welded cover
Types of sealing available: rising seal, ball, or flap
Medium: the valve is suitable for several media including water, steam, oil, gas, petrol products, nitric acid, acetic acid, etc.
Working temperature: from -29 ℃up to more than 600 ℃

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