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Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Technical Datasheet -- Flexible Sleeve Pinch Valves for Abrasive and Corrosive Slurry
Pinch valves for abrasive slurry, mining tailings, cement, powder handling, and wastewater applications. Flexible rubber sleeve is the only wetted part -- no metal components contact the process fluid. Full-bore cylindrical flow path when open provides zero pressure drop and prevents clogging. Tight shutoff even with suspended solids and fibrous material. Pneumatic diaphragm or manual handwheel/lever operation. In-line sleeve replacement without removing valve from pipeline. ISO 16138 compliant.
| Parameter | Specification |
|---|---|
| Product Type | Pinch Valves |
| Category | Pinch Valves |
| Size Range | 1" to 48" (DN25 to DN1200) |
| Pressure Rating | PN10 / PN16 / Class 150 |
| End Connections | Flanged RF / EN 1092-1 PN10/PN16 / ASME B16.5 Class 150, threaded NPT / BSP (small sizes), tri-clamp (sanitary) |
| Body / Casing Material | ASTM A216 WCB / ASTM A351 CF8M (SS316) / Aluminium alloy (lightweight option) |
| Sleeve Material | Natural rubber / EPDM / NBR / Viton (FPM) / Neoprene / Butyl / Food-grade NR / Wear-resistant compound (mining) |
| Sleeve Reinforcement | Multi-ply fabric reinforcement (nylon / polyester / aramid) for pressure rating and abrasion resistance |
| Closing Mechanism | Pneumatic: rubber diaphragm actuator with air pressure 4--6 bar -- Manual: handwheel with screw mechanism or lever |
| Face-to-Face | Manufacturer standard or EN 558 short pattern |
| Operation | Pneumatic (air-to-close or air-to-open) / Manual handwheel or lever / Electric actuator with mechanical pinch mechanism |
| Leakage Class | Zero visible leakage when closed -- sleeve pinches completely shut even with solids present |
| Temperature Range | -20 deg C to +80 deg C (natural rubber) -- up to +120 deg C (EPDM / NBR) -- up to +200 deg C (Viton FPM sleeve on request) |
| Component | Material |
|---|---|
| Carbon Steel | ASTM A216 WCB body/casing (standard industrial) |
| Stainless Steel | ASTM A351 CF8M (SS316) body/casing (corrosive / hygienic service) |
| Aluminium | Aluminium alloy casing (lightweight, portable installations) |
| Sleeve Options | Natural rubber (general), EPDM (water / steam), NBR (oil / hydrocarbon), Viton FPM (chemical / high temp), wear-resistant compound (mining) |
| 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 | ISO 16138 Industrial Valves -- Pinch Valves, manufacturer's standard |
The Pinch Valve -- Pneumatic & Manual Mining Slurry 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.