T-Pattern Globe Valve -- ASME B16.34 WCB
Technical Datasheet -- Standard T-Pattern Globe Valves for Throttling and Shut-Off Service
Document No.SV-DATA-TGV-001
RevisionA
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
T-pattern (standard pattern) globe valves for throttling and shut-off service in steam, water, oil, and process pipelines. Classic 90-degree body angle provides well-characterised flow path with moderate pressure drop, making it the industry standard for throttling service. Bolted bonnet with renewable seat ring, backseat design for in-line packing replacement, and anti-blowout stem. Stellite 6 hard-facing on disc and seat for erosion resistance. API 600 / API 602 / ASME B16.34 compliant. Handwheel, gear operator, or actuator drive.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | T-Pattern Globe Valves |
| Category | Globe Valves |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | Class 150 / Class 300 / Class 600 / Class 900 / Class 1500 per ASME B16.5 |
| End Connections | RF / RTJ flanged per ASME B16.5 or butt-weld per ASME B16.25, threaded NPT / BSP (1/2" to 2"), socket weld |
| Body Material | ASTM A216 WCB / ASTM A217 WC6 (high temp) / ASTM A351 CF8M (SS316) / ASTM A217 C5 (high temp alloy) |
| Disc Material | ASTM A216 WCB with Stellite 6 overlay / SS316 disc with Stellite overlay / SS316 with PTFE insert (soft seat, on request) |
| Seat Material | Renewable seat ring: ASTM A216 WCB with Stellite 6 overlay / SS316 + Stellite / SS316 with PTFE insert (soft seat) |
| 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 6 inch) / Gear operator (8 inch and above) / Actuator |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable; Class A (soft seat, on request) |
| Temperature Range | -29 deg C to +425 deg C (WCB) -- up to +540 deg C (WC6) -- up to +595 deg C (C5) |
Materials of Construction
| Component | Material |
|---|
| Carbon Steel | ASTM A216 WCB, A105 (standard industrial steam, water, oil) |
| Alloy Steel | ASTM A217 WC6 (up to 540 deg C), WC9 (up to 595 deg C), C5 (high temp alloy) |
| Stainless Steel | ASTM A351 CF8M (SS316) -- corrosive / chemical 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 / API 602 Steel Globe Valves, ASME B16.34, API 598 |
Notes
- Flow direction must be specified by the purchaser: under-the-disc (best shutoff) or over-the-disc (best throttling control).
- For high-temperature steam service (> 425 deg C), material upgrade to WC6, WC9, or C5 with Stellite trim is required.
- For cryogenic service (below -29 deg C), extended bonnet and low-temperature materials (ASTM A352 LCC) are required.
- For severe throttling service (high differential pressure, cavitation risk), consider cage-guided control valve or Y-pattern globe valve instead of standard T-pattern.
- All valves are manufactured by Supreme Valves India as per our standard specifications.
