Plug Valve -- Lubricated & Non-Lubricated API 6D
Technical Datasheet -- Tapered Plug Valves for On-Off and Diverting Service
Document No.SV-DATA-PLV-001
RevisionA
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
Lubricated and non-lubricated tapered plug valves for on-off and diverting service. Full-bore or regular-bore design with PTFE sleeve (non-lubricated) or sealant injection system (lubricated). Quarter-turn operation provides rapid actuation and clear position indication. Low operating torque due to PTFE sleeve or lubricant film. API 6D / API 599 / ASME B16.34 compliant. Multi-port diverter options available.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Plug Valves |
| Category | Plug Valves |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | Class 150 / Class 300 / Class 600 / Class 900 per ASME B16.5 |
| End Connections | RF / RTJ flanged per ASME B16.5, threaded NPT / BSP, socket weld, butt weld |
| Body Material | ASTM A216 WCB / ASTM A351 CF8M (SS316) / ASTM A217 WC6 (high temp) |
| Plug Material | ASTM A216 WCB with ENP or chrome plating / SS316 plug with ENP |
| Sleeve / Seal Material | PTFE / RPTFE / PEEK sleeve (non-lubricated) / Sealant injection fittings (lubricated) |
| Stem Material | SS316 with anti-blowout design and stem seal |
| Bore | Full bore (FB) or regular bore (RB) per API 6D |
| Operation | Wrench (up to 2 inch) / Lever with locking device (up to 6 inch) / Gear operator (8 inch and above) / Actuator |
| Leakage Class | API 598 / EN 12266-1 Class A (PTFE sleeve) -- zero visible leakage |
| Temperature Range | -29 deg C to +200 deg C (PTFE sleeve) -- up to +260 deg C (PEEK sleeve) -- up to +540 deg C (lubricated WC6 body) |
Materials of Construction
| Component | Material |
|---|
| Carbon Steel | ASTM A216 WCB body and plug (standard industrial) |
| Stainless Steel | ASTM A351 CF8M (SS316) body and plug (corrosive service) |
| Alloy Steel | ASTM A217 WC6 body and plug (high temperature > 425 deg C) |
| Sleeve Options | PTFE (standard), RPTFE (reinforced), PEEK (high temperature) for non-lubricated design |
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 6D Pipeline Valves, API 599 Steel Plug Valves, ASME B16.34 |
Notes
- Bore type (full bore FB or regular bore RB) and sleeve/seal type must be specified by the purchaser.
- For high-temperature service (> 260 deg C), lubricated design with WC6 body and sealant injection is required; PTFE sleeve is not suitable.
- For abrasive service (sand, catalyst fines), lubricated design with hardened plug and body overlay is strongly recommended.
- For sour gas service (H2S > 50 ppm), material upgrade to NACE MR0175 compliant SS316L or duplex SS is required.
- All valves are manufactured by Supreme Valves India as per our standard specifications.
