Wedge Gate Valve -- API 600 WCB Bolted Bonnet
Technical Datasheet -- Flexible Wedge Gate Valves for General Industrial and Steam Service
Document No.SV-DATA-WGV-001
RevisionA
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
Bolted bonnet flexible wedge gate valves for general industrial, water distribution, steam, and oil & gas service. Flexible wedge compensates for seat distortion due to thermal expansion, ensuring tight shutoff across the full temperature range. API 600 / ASME B16.34 compliant.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Wedge Gate Valves |
| Category | Gate Valves |
| Size Range | 2" to 48" (DN50 to DN1200) |
| Pressure Class | Class 150 / Class 300 / Class 600 per ASME B16.5 |
| End Connections | RF / RTJ flanged per ASME B16.5 or butt-weld per ASME B16.25 |
| Body Material | ASTM A216 WCB / ASTM A217 WC6 (high temp) / ASTM A351 CF8M (SS316) |
| Wedge Material | ASTM A216 WCB with Stellite 6 overlay on seating surface / SS316 wedge with Stellite overlay |
| Seat Material | ASTM A216 WCB with Stellite 6 overlay / renewable seat ring (SS316 + Stellite) |
| Stem Material | ASTM A276 410 / SS316 with anti-blowout design and backseat |
| Bonnet Type | Bolted bonnet with spiral wound SS316/graphite gasket per ASME B16.20 |
| Face-to-Face | ASME B16.10 |
| Operation | Handwheel (up to 10 inch) / Impact handwheel (12-14 inch) / Gear operator (16 inch and above) / Actuator |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable |
| Temperature Range | -29 deg C to +425 deg C (WCB) -- up to +540 deg C (WC6) |
Materials of Construction
| Component | Material |
|---|
| Carbon Steel | ASTM A216 WCB, A105 (standard industrial) |
| Alloy Steel | ASTM A217 WC6, WC9 (high temperature) |
| Stainless Steel | ASTM A351 CF8M (SS316) -- corrosive service |
| Seat Overlay | Stellite 6 on WCB/WC6/SS316 seat for erosion and wear resistance |
| Gasket | Spiral wound SS316/graphite per ASME B16.20 |
Testing & Inspection
| Test | Requirement |
|---|
| Testing | Hydrostatic shell test 1.5 x WP per API 598 / EN 12266-1; Seat leakage test per API 598 / EN 12266-1; Functional test -- full stroke, torque; Material certificates per EN 10204 3.1 |
| Certification | ISO 9001:2015 QMS, EN 10204 3.1 material certificates, hydrostatic and seat test reports |
Applicable Standards
| Standard | Description |
|---|
| Design Standard | API 600 Steel Gate Valves, ASME B16.34, API 598 |
Notes
- Pressure class, end connection, and face-to-face dimension must be specified by the purchaser.
- For high-temperature steam service (> 425 deg C), material upgrade to WC6 or WC9 is required.
- For cryogenic service (below -29 deg C), extended bonnet and low-temperature materials (ASTM A352 LCC) are required.
- All valves are manufactured by Supreme Valves India as per our standard specifications.
