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Corrosion-Resistant On/Off and Throttling Valve for Chemical Process
This datasheet describes PTFE-lined plug valves with fully encapsulated ported sleeve for chemical, acid, and alkali service where full corrosion resistance and moderate pressure rating are required.
| Parameter | Specification |
|---|---|
| Valve Size Range | DN25 to DN300 (1" to 12") |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Body Material | WCB carbon steel, ductile iron GGG50, CF8M (SS316) |
| Liner Material | Virgin PTFE, PFA, or FEP full-port sleeve, 3 to 5 mm thickness |
| Plug Material | SS316 or ductile iron, fully PTFE encapsulated with ported openings |
| Temperature Range | -40°C to +180°C (PTFE), +200°C (PFA) |
| End Connections | Flanged ASME B16.5 / BS EN 1092-1 with liner-overflanged face |
| Operation | Wrench or gear operator; pneumatic / electric actuator on request |
| Lining Thickness | Minimum 3 mm at thinnest point; 5 mm for sizes above DN150 |
| Vent Cavity | Optional vented bonnet to relieve trapped media between plug and liner |
| Component | Material |
|---|---|
| Body | WCB carbon steel or ductile iron, machined to accept PTFE liner with anti-rotation keys |
| Liner | Virgin PTFE or PFA, isostatically moulded and sintered to body, overflanged at gasket face |
| Plug | SS316 or ductile iron core, PTFE-encapsulated, ported to match body ports |
| Stem | SS316 with PTFE thrust washer and O-ring seal below bonnet |
| Packing | PTFE V-ring set with SS316 anti-extrusion rings |
| Gasket | PTFE envelope gasket with SS316 core for body/bonnet joint |
| Wrench | Cast iron or aluminium wrench with stop pin for 90° rotation |
| Test | Requirement |
|---|---|
| Test Standard | API 598 / ISO 5208 (test pressure limited by PTFE cold flow) |
| Certification | CE, ISO 9001 |
| Standard | Description |
|---|---|
| Design Standard | API 599 / ASME B16.34 |
The PTFE Lined Plug Valve -- Ported Sleeve Chemical 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.