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Branch Office: Mehta House, Relief Road, Ahmedabad 380001
Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Full-Bore Piggable Pipeline Isolation Valve with Floating Seats
This datasheet covers through-conduit slab gate valves to API 6D with floating self-relieving seats for crude oil, natural gas, LPG, and refined product pipeline piggable isolation.
| Parameter | Specification |
|---|---|
| Valve Size Range | DN50 to DN1200 (2" to 48") |
| Pressure Rating | Class 150 / Class 300 / Class 600 / Class 900 |
| Body Material | WCB carbon steel, LF2 low-temp carbon steel, or LCC on request |
| Slab Gate | SS316 with ENP coating, through-conduit full-bore design |
| Seat Material | Floating SS316 + PTFE insert seats, self-relieving and bidirectional |
| Stem Material | SS316 anti-blow-out rising stem with double O-ring seals |
| Seals | O-ring + graphite stem seals; PTFE+graphite seat seals |
| Gaskets | Spiral-wound SS316 + graphite or RTJ gaskets per service class |
| Temperature Range | -29°C to +200°C (standard); +425°C with graphite seats |
| End Connections | Flanged ASME B16.5, butt weld ASME B16.25, hub connection |
| Operation | Handwheel, bevel gear, pneumatic, electric or hydraulic actuator |
| Features | Piggable full bore, floating seats, DBB, low torque, anti-static |
| Component | Material |
|---|---|
| Body | WCB carbon steel or LF2 low-temperature steel, sand cast or forged, machined to API 6D face-to-face |
| Bonnet | WCB carbon steel, bolted bonnet with spiral-wound or RTJ gasket groove |
| Slab Gate | SS316 solid slab gate with electroless nickel plating (ENP) for corrosion resistance and low friction |
| Seats | Floating SS316 seat rings with PTFE insert; self-relieving design prevents pressure trapping in body cavity |
| Stem | SS316 rising stem, anti-blow-out design with double O-ring and graphite seal sets |
| Seals | FKM or NBR O-rings for low-temperature stem seal; graphite packing for high-temperature option |
| Gaskets | Spiral-wound SS316 + graphite for standard service; octagonal RTJ rings for Class 600 and above |
| Test | Requirement |
|---|---|
| Test Standard | API 6D / API 598 / ISO 5208 |
| Certification | CE, PED, ISO 9001, API 6D Compliant on request |
| Standard | Description |
|---|---|
| Design Standard | API 6D / API 600 / ASME B16.34 |
The Slab Gate Valve -- Through Conduit API 6D WCB 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.