A216 WCB Swing Check Valve

A216 WCB swing check valve is an industrial valve that uses ASTM A216 WCB carbon steel casting valve body and realizes one-way shutoff by rotating the valve disc around the axis. It is designed for high pressure and high temperature conditions.
‌Main structure‌ ‌

Valve body/valve cover‌: ASTM A216 WCB carbon steel casting (carbon content ≤0.25%), normalized + tempered, tensile strength ≥485MPa.
‌Valve disc design‌:
Single disc or multi-disc type (DN＞600 commonly used double/multi-disc);
‌Sealing surface‌: Overlay welding cobalt-based cemented carbide (Stellite 6, thickness ≥2mm, hardness HRC55-60).
‌Buffer mechanism‌: Integrated hydraulic damping hinge, valve disc closing time is adjustable (0.5-5 seconds), reducing water hammer impact.
‌Connection method‌ ‌Method end‌: In accordance with ASME B16.5 standard, bolted connection (self-tightening seal is used for high pressure conditions).

• Size: 1/2"-18"
• Temperature: -29-425 centigrade
• Media: water, oil, acid
• Function: avoid backflow
• Design standard: ANSI B16.34, BS1868
• Face to face: ANSIB16.10
• Flange ANSI B16.5
• Inspection: API 598
• OEM serivce

 

A216 WCB Swing Check Valve in stock

 

Features ‌
‌High-pressure sealing ‌
45° beveled disc design achieves zero leakage closure (actual annual leakage <0.1mL).
‌Water hammer suppression ‌
The buffer system can reduce the peak water hammer pressure by 80% (e.g. 6.2MPa→1.8MPa).
‌Low flow resistance optimization ‌
Streamlined valve cavity design, flow resistance coefficient Kv value reaches 2200 when fully open, and pressure loss is 55% lower than that of traditional structures.
‌Long-term wear resistance ‌
The wear of carbide sealing surface in solid-containing media (e.g. coal powder 200mg/m³) is <0.05mm/3 years.

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