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
Adjustable Closing Speed
External lever and adjustable weight allow field tuning of disc closure speed to match pump stop curve and eliminate water hammer.
Visual Position Indication
Outside lever clearly indicates disc position at a glance, enabling operators to verify valve status without disassembly.
Full Port Low Pressure Drop
Swing disc opens fully into body recess, providing flow area equal to pipe ID for minimal head loss and energy saving.
Renewable Seat Ring
Replaceable screwed seat ring allows in-line restoration of shutoff without removing valve from piping or welding.
Robust Hinge Design
Hardened SS316 hinge pin with replaceable bushings withstands continuous cycling and resists corrosion in water and condensate service.