High Pressure and Temperature Check Valves
Steel Check Valve
Steel check valve is a steel-bodied check valve that prevents backflow in high-pressure and high-temperature lines. Piston (lift) type is preferred in smaller sizes, while swing (swing disc) type with low pressure drop is preferred in larger sizes.
Piston-type models are supplied to API 602 standard in ASTM A105N forged steel Class 800 and ASTM A182 F22 alloy forged steel Class 1500, socket-weld from 1/2″ to 2″. Swing-type models are available as ASTM A216 WCB steel cast iron Class 150 flanged (2″–12″) and ASTM A217 WC6 alloy steel Class 600 butt-weld (2″–10″). Seat surfaces are hardened with Stellite 6.
1/2″–12″Nominal size
Class 150–1500Pressure class
Piston / swingType options
Stellite 6Seat
Benefits
- High-pressure and high-temperature resistance
- Piston and swing type options
- Wear resistance with Stellite-coated seat
- Cast and forged steel body
Applications
- Saturated steam and boiler feedwater lines
- Oil and gas lines
- Refineries and petrochemical plants
- High-pressure pump discharge
Technical Specifications
| Nominal sizes | 1/2″ – 2″ (piston type) |
|---|---|
| 2″ – 12″ (swing type) | 2″ – 12″ (swing type) |
| Pressure class | Class 150 / 600 / 800 / 1500 |
| Connection | Socket-weld, flanged or butt-weld |
| Seat | Stellite 6 |
Materials
| Body and cap | ASTM A105N, A182 F22, A216 WCB or A217 WC6 |
|---|---|
| Disc | ASTM A182 F6A stainless steel or Stellite 6 |
| Seat | Stellite 6 |
Why ORFA?
Since 1985Over 40 years’ experience in industrial piping equipment supply.
Technical ConsultancySupport in selecting the correct valve according to line pressure and size.
Stock DispatchCommon sizes shipped from warehouse same day.
Spare PartsBall seat, stem packing and lever kit with other valve spare parts from a single source.
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