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Self-Acting Pressure Reducing Valve — Pilot Operated Steam WCB
Self-actuating internally piloted pressure reducing valve for steam, air, and industrial gas service. Two-valve design with highly sensitive internal pilot and piston-operated main valve on spring-and-diaphragm balance principle. Maintains constant outlet pressure regardless of inlet pressure or flow variation without external power. Compact flanged or screwed end connections; 20:1 pressure reduction ratio.
Key Applications
Technical Specifications
Material of Construction (MOC)
Dimensions & Weights
| Size (mm) | A (mm) | B (mm) | C (mm) |
|---|---|---|---|
| 15 | 160 | 92 | 350 |
| 25 | 194 | 79 | 350 |
| 50 | 254 | 121 | 378 |
| 80 | 311 | 140 | 520 |
| 100 | 347 | 147 | 565 |
Purchase Options
Features & Benefits
Internal Pilot Sensing
No external impulse piping required; pilot continuously monitors inlet and outlet pressure.
Full Lift Main Valve
High flow capacity with accurate downstream pressure control across wide load range.
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- Valve type: Self-actuating, internally piloted, piston-operated PRV
- Size: 15 mm to 150 mm (screwed 15–25 mm; flanged 25–150 mm)
- Pressure class: Class 150 and Class 300; BS 10 Table H
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