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Branch Office: Mehta House, Relief Road, Ahmedabad 380001
Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Technical Datasheet -- High-Pressure High-Temperature Pressure Seal Globe Valves
Pressure seal bonnet globe valves for high-pressure high-temperature steam and process service. Bonnet seal gasket is compressed by internal line pressure -- the higher the pressure, the tighter the seal, eliminating leak paths common in bolted bonnet designs at high pressure (Class 900 to Class 2500). Y-pattern body (45-degree angle) provides 40--60% lower pressure drop than T-pattern. ASTM A217 WC6/WC9 body and disc with Stellite 6 seat overlay. Backseat design for in-line packing replacement. Live-loaded graphite packing. API 600 / ASME B16.34 compliant.
| Parameter | Specification |
|---|---|
| Product Type | Pressure Seal Globe Valves |
| Category | Globe Valves |
| Size Range | 2" to 24" (DN50 to DN600) |
| Pressure Class | Class 900 / Class 1500 / Class 2500 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 (up to 425 deg C) / ASTM A217 WC6 (up to 540 deg C) / ASTM A217 WC9 (up to 595 deg C) / ASTM A351 CF8M (SS316, corrosive) |
| Disc Material | ASTM A217 WC6 with Stellite 6 overlay on seating surface / SS316 disc with Stellite overlay / SS316 with PTFE insert (soft seat, on request for lower pressure) |
| Seat Material | ASTM A217 WC6 with Stellite 6 overlay / renewable SS316 + Stellite seat insert / SS316 with PTFE insert (soft seat, on request) |
| Stem Material | ASTM A276 410 / SS316 with anti-blowout design |
| Bonnet Seal | Pressure seal bonnet with graphite / SS316 gasket -- seal tightness increases with internal pressure |
| Bonnet Type | Pressure seal bonnet with yoke and stem guide -- OS&Y rising stem |
| Face-to-Face | ASME B16.10 |
| Pattern | Y-pattern (45-degree body angle, low pressure drop) -- T-pattern on request |
| Operation | Handwheel (up to 8 inch) / Impact handwheel (10-12 inch) / Gear operator (14 inch and above) / Actuator |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable; zero visible for pressure seal bonnet joint |
| Temperature Range | Up to +425 deg C (WCB) -- up to +540 deg C (WC6) -- up to +595 deg C (WC9) |
| Component | Material |
|---|---|
| Carbon Steel | ASTM A216 WCB body and disc (up to 425 deg C) |
| Alloy Steel | ASTM A217 WC6 (up to 540 deg C), WC9 (up to 595 deg C) |
| Stainless Steel | ASTM A351 CF8M (SS316) body, disc, and stem (corrosive / high-temp service > 425 deg C) |
| Seat Overlay | Stellite 6 on WC6/WC9/SS316 seat for erosion and galling resistance at high temperature and high velocity |
| Bonnet Gasket | Graphite / SS316 spiral wound or solid SS316 pressure seal ring |
| 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 |
| Standard | Description |
|---|---|
| Design Standard | API 600 Steel Gate/Globe Valves, ASME B16.34, API 598 |
The Pressure Seal Globe Valve -- ASME B16.34 WC6 is designed, manufactured, and tested in accordance with applicable API / ASME / BS / ISO international standards. Compliance documentation and Material Test Certificates (EN 10204 3.1) are provided with every order.
Standard construction is carbon steel, stainless steel (CF8 / CF8M), and special alloy grades. Alternative and upgraded grades -- Duplex, Super Duplex, Inconel, Monel, Hastelloy, and NACE MR0175 trims for sour service -- are available on request.
It is offered in a range of sizes as per the technical specification with standard ANSI / ASME pressure classes (PN ratings on request). End connections include flanged (RF / RTJ), butt-weld, socket-weld, and screwed ends as per specification.
Yes. Supreme Valves India is an established exporter of industrial valves to Saudi Arabia (KSA), the UAE, Qatar, Kuwait, Oman, Bahrain, and across the Gulf. We provide sea-worthy export packing, EN 10204 3.1 / 3.2 certification, certificate of origin, and support for SABER / SASO conformity on KSA shipments.
Every valve undergoes hydrostatic shell and seat testing per API 598 / ISO 5208. Documentation includes EN 10204 3.1 MTC (3.2 on request), NDT reports, and fire-safe (API 607) or NACE MR0175 certification where applicable. Third-party inspection by TÜV, SGS, Bureau Veritas, or Lloyd's Register can be arranged.
Order quantities are flexible -- from single units for stocked items to bulk volumes for project requirements. Lead time depends on size, material, and quantity; please contact our team with your specification for a firm delivery schedule and quotation.