4th Floor, Survey No. 235/A and 247/A, E/401, Nr. Bhattha School, Gyaspur, Ahmedabad 382405, Gujarat, India
Branch Office: Mehta House, Relief Road, Ahmedabad 380001
Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Technical Datasheet -- Compact Wafer Swing Check Valves for Space-Restricted Installations
Compact wafer swing check valves for horizontal pipeline service. Hinged disc swings open with low pressure drop and closes by gravity on flow reversal. Fits between existing flanges with short face-to-face dimension -- 60--70% shorter than flanged swing check valves. Full-bore or standard-bore options. Bolted cover with renewable Stellite seat ring. API 594 / BS 1868 / ASME B16.34 compliant. SS316, WCB, WC6, or NAB body.
| Parameter | Specification |
|---|---|
| Product Type | Wafer Swing Check Valves |
| Category | Check Valves |
| Size Range | 2" to 24" (DN50 to DN600) |
| Pressure Class | Class 150 / Class 300 / Class 600 / PN10 / PN16 / PN25 per ASME B16.5 / EN 1092-1 |
| End Connections | Wafer type (fits between flanges) or Lug type (through-bolted) per API 594 / ASME B16.5 / EN 1092-1 |
| Body Material | ASTM A351 CF8M (SS316) / ASTM A216 WCB / ASTM A217 WC6 (high temp) / ASTM B148 C95800 (NAB, marine) |
| Disc Material | SS316 with Stellite 6 overlay / SS316 with ENP or chrome plating / NAB (marine) |
| Hinge Pin | SS410 / SS316 with Stellite bushing -- corrosion and wear resistant |
| Seat Material | SS316 with Stellite 6 overlay / renewable SS316 + Stellite seat ring |
| Bonnet Type | Bolted cover with spiral wound SS316/graphite gasket -- removable for disc and seat access |
| Face-to-Face | API 594 wafer short pattern or manufacturer's standard (compact for space-restricted installations) |
| Orientation | Horizontal installation only (disc must swing freely with gravity) |
| Bore | Full bore (FB) or standard bore (SB) per API 594 |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable |
| Temperature Range | -29 deg C to +425 deg C (WCB/SS316) -- up to +540 deg C (WC6) |
| Component | Material |
|---|---|
| Stainless Steel | ASTM A351 CF8M (SS316) body, disc, hinge, and seat (corrosive / standard service) |
| Carbon Steel | ASTM A216 WCB body and disc (standard industrial) |
| Alloy Steel | ASTM A217 WC6, WC9 body and disc (high temperature > 425 deg C) |
| Nickel-Aluminium-Bronze | ASTM B148 C95800 (NAB) body and disc (marine / seawater) |
| Seat Overlay | Stellite 6 on SS316 seat for erosion and wear resistance |
| Hinge Bushing | Stellite or bronze bushing on hinge pin for long wear life |
| 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 | API 594 Check Valves, BS 1868, ASME B16.34 |
The Wafer Swing Check Valve -- Compact SS316 API 594 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.