Prevents reverse flow: Automatically closes when flow reverses, protecting system integrity
Robust construction: Bolted bonnet allows for secure pressure sealing and easy access for maintenance
Smooth flow path: Swing design minimizes pressure drop
Reliable under high pressure: Designed to meet API 6D and ASME B16.34 requirements
Versatile installation: Horizontal or vertical (upward flow) pipeline installation
Durable seating: Available in metal-to-metal or soft seat options
| Parameter | Details |
|---|---|
| Function | Prevent backflow (non-return valve) |
| Connection Type | Flanged (ANSI B16.5), Butt Weld (optional) |
| Material | Body: WCB, LCB, CF8, CF8M, CF3, CF3MDisc: Stainless Steel or Alloy SteelSeat: Metal or Renewable Soft Seat (e.g., PTFE) |
| Max. Nominal Pressure | Class 150 ~ Class 1500 |
| Max. Nominal Size | 2” ~ 36” (DN50 ~ DN900) |
| Allowable Fluid Temperature | -29°C to +425°C (depending on material and seat configuration) |
 | Applications
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