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
Piggable Full Bore
Through-conduit slab gate provides full-bore flow path equal to pipe ID, allowing pigs, scrapers, and inspection tools to pass unobstructed.
Floating Self-Relieving Seats
Spring-loaded floating seats seal bidirectionally and self-relieve excess body cavity pressure to upstream, preventing seat damage.
Double Block and Bleed
DBB configuration with body bleed valve isolates both upstream and downstream simultaneously for safe maintenance.
Low Operating Torque
ENP-coated slab gate and PTFE seat inserts minimise friction, allowing compact actuator sizing and manual operation of large valves.
Anti-Static Design
Spring-loaded electrical continuity between ball, stem, and body prevents static charge accumulation in hydrocarbon service.