Ranginwala Building, Relief Road, Ahmedabad 380001, Gujarat, India
Tel: +91 97732 78770 | Email: supremevalvesindia@gmail.com | www.supremevalves.in
Technical Datasheet -- Spring-Assisted Lift Check Valves for Horizontal and Vertical Service
Piston (lift) check valves for horizontal and vertical pipeline service. Spring-assisted or non-spring disc lifts with forward flow and returns to seat on flow reversal. Compact face-to-face per API 594 short pattern. Low cracking pressure (0.05 bar non-spring). Can be installed in any orientation with appropriate spring selection. API 6D / ASME B16.34 compliant.
| Parameter | Specification |
|---|---|
| Product Type | Piston Check Valves |
| Category | Check Valves |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | Class 150 / Class 300 / Class 600 / Class 900 / Class 1500 per ASME B16.5 |
| End Connections | RF / RTJ flanged per ASME B16.5 or butt-weld per ASME B16.25 |
| Body Material | ASTM A216 WCB / ASTM A217 WC6 (high temp) / ASTM A351 CF8M (SS316) |
| Disc / Piston | ASTM A216 WCB with Stellite 6 overlay / SS316 disc with Stellite overlay |
| Seat Material | Integral WCB + Stellite 6 overlay or renewable SS316 + Stellite seat ring |
| Spring Material | SS316 spring (optional, for vertical installation or rapid closure) / Inconel X-750 (high temp) |
| Bonnet Type | Bolted bonnet with spiral wound SS316/graphite gasket |
| Face-to-Face | API 594 short pattern or ASME B16.10 |
| Orientation | Horizontal or vertical (spring-assisted required for vertical upward flow) |
| Cracking Pressure | 0.05 bar (non-spring, horizontal) -- 0.1 to 0.3 bar (spring-assisted) |
| Leakage Class | API 598 / EN 12266-1 -- metal seated standard leakage acceptable; soft seat option: Class A |
| Temperature Range | -29 deg C to +425 deg C (WCB) -- up to +540 deg C (WC6) |
| Component | Material |
|---|---|
| Carbon Steel | ASTM A216 WCB, A105 (standard industrial) |
| Alloy Steel | ASTM A217 WC6, WC9 (high temperature) |
| Stainless Steel | ASTM A351 CF8M (SS316) -- corrosive service |
| Seat Overlay | Stellite 6 on WCB/WC6/SS316 seat for erosion resistance |
| Spring | SS316 (standard) or Inconel X-750 (high temperature > 400 deg C) |
| 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 6D / API 594 Check Valves, ASME B16.34 |