Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Cast Steel (ASTM A216 Gr. WCB/WCC) |
| Stem / Spindle | SS 410 / SS 304 |
| Seat / Trim | 13% Cr. SS / Stellite 6 Overlay |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | API 600 / BS 1414 / ASME B16.34 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 / Class 300 / Class 600 |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | API 600 / BS 1414 / ASME B16.34 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 / Class 300 / Class 600 |
Features & Benefits
Integral Check + Bypass
Single valve body combines main line non-return and bypass recirculation, saving piping space and weld joints.
Self-Acting No External Power
Spring-loaded main disc and differential-pressure bypass element operate without electricity or compressed air.
Pump Curve Matching
Bypass opening characteristic is factory-matched to pump H-Q curve to maintain flow above minimum continuously.
Multi-Stage Pressure Reduction
Bypass trim uses multi-stage pressure drop to prevent cavitation erosion in high-head feed pump applications.
Quick-Change Trim
Cartridge-style bypass trim allows field replacement without removing valve from the pipe.