Forged Steel Gate Valve -- API 602 WCB / SS316
Technical Datasheet -- Forged Steel Compact Gate Valves for High-Pressure Small-Bore Service
Document No.SV-DATA-FSGV-001
RevisionA
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
Forged steel gate valves for high-pressure small-bore service. One-piece forged barstock or forged body provides superior grain structure and pressure integrity compared to cast valves -- enabling pressure ratings up to Class 4500 (10,000 psi). Compact API 602 / BS 5352 face-to-face is 40--60% shorter than equivalent cast valves. Integral threaded, socket weld, butt weld, or flanged ends eliminate leak paths. Bolted bonnet with OS&Y rising stem or NRS. Backseat design for in-line packing replacement. ASTM A105, A182 F316/F316L, or A182 F11 forged body and wedge with Stellite seat overlay. API 602 / ASME B16.34 / BS 5352 compliant.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Forged Steel Gate Valves |
| Category | Gate Valves |
| Size Range | 1/4" to 2" (DN8 to DN50) -- other sizes on request |
| Pressure Class | Class 800 / Class 1500 / Class 2500 / Class 4500 per ASME B16.11 (socket weld/threaded) / ASME B16.5 (integral flanged) |
| End Connections | Threaded NPT / BSP (1/4" to 2"), Socket weld per ASME B16.11 (1/4" to 2"), Butt weld per ASME B16.25 (1/2" to 2"), Integral flanged RF/RTJ per ASME B16.5 (1/2" to 2") |
| Body Material | ASTM A105 (forged carbon steel) / ASTM A182 F316 (forged SS316) / ASTM A182 F316L (forged SS316L) / ASTM A182 F11 (forged alloy steel, high temp) |
| Wedge Material | ASTM A105 with Stellite 6 overlay / ASTM A182 F316 with Stellite overlay / ASTM A182 F316L (solid SS316L) |
| Seat Material | Integral body seat with Stellite 6 overlay / renewable SS316 + Stellite seat insert (on request) |
| Stem Material | ASTM A276 410 / SS316 / SS316L with anti-blowout design and backseat |
| Bonnet Type | Bolted bonnet with spiral wound SS316/graphite gasket per ASME B16.20 / solid SS316 gasket (for oxygen service) |
| Face-to-Face | API 602 / BS 5352 compact pattern (significantly shorter than cast API 600 valves of equivalent size) |
| Operation | Handwheel (standard) / Impact handwheel (high pressure, 1-1/2" to 2") / Chainwheel (elevated installations) |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable |
| Temperature Range | -29 deg C to +425 deg C (A105 body) -- up to +540 deg C (F11 alloy body) -- up to +200 deg C (SS316L body with PTFE packing) |
Materials of Construction
| Component | Material |
|---|
| Forged Carbon Steel | ASTM A105 forged body and wedge (standard high-pressure industrial) |
| Forged Stainless Steel | ASTM A182 F316 / F316L forged body and wedge (corrosive / high-purity / oxygen service) |
| Forged Alloy Steel | ASTM A182 F11 (1-1/4 Cr-1/2 Mo) forged body and wedge (high temperature > 425 deg C) |
| Seat Overlay | Stellite 6 on A105/F316 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 602 Compact Steel Gate/Globe/Check Valves, BS 5352 Steel Wedge Gate Globe and Check Valves, ASME B16.34, ASME B16.11 |
Notes
- Pressure class (Class 800 / 1500 / 2500 / 4500), end connection type, and body material (A105 / F316 / F316L / F11) must be specified by the purchaser.
- For oxygen service (> 21% O2), specify A182 F316 or F316L body with PTFE packing and solid SS316 gasket; all components must be degreased and cleaned per ASTM G93 Level 300.
- For sour gas service (H2S > 50 ppm), specify A182 F316L or duplex stainless steel body with hardness control per NACE MR0175.
- For socket weld or butt weld ends, confirm pipe schedule (XS, XXS, SCH 160) for correct bore and wall thickness matching.
- All valves are manufactured by Supreme Valves India as per our standard specifications.
