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 |
Features & Benefits
Flexible Wedge Design
Wedge has a central hub cut that allows the two seating faces to flex independently, compensating for seat distortion caused by thermal expansion.
Bolted Bonnet Construction
Standard bolted bonnet with spiral wound gasket allows easy maintenance access to internal components.
Backseat Design
Stem backseat allows packing replacement while the valve is under pressure.
Stellite Seat Overlay
Stellite 6 hard-facing on seat rings resists erosion and galling, extending seat life in steam and process service.
Renewable Seats
Seat rings are replaceable in-line, reducing long-term maintenance cost.
Anti-Blowout Stem
Stem is retained by the bonnet geometry and cannot be ejected under pressure.