Lift Check Valve
Lift check valves, also known as piston check valves, are similar to globe valves but without the stem, allowing the disc to respond to flow rates. The disc moves linearly, guided by the body, and can include springs for added closure force.
Technical Specifications
Overview
Cast Steel Piston Check Valve
These cast steel piston check valves are engineered for demanding industrial environments, including oil, chemical, fertilizer, and municipal construction sectors. Featuring a seat seal surface overlaid with hardened alloy and a specially treated stem for superior strength and corrosion resistance, they ensure reliable performance. Designed for versatility, these valves accommodate various media such as water, steam, oil, and acids, offering a robust solution for backflow prevention.
Technical Specifications
Body Materials
Carbon SteelStainless SteelAlloy SteelDuplex Steel
Design Features
- Bolted cover
- Optional buffering damp structure
- Renewable or welded seat
- Flanged or buttwelding ends
- Size Range
- 2" to 24" (DN50 to DN600)
- Pressure Rating
- ANSI 150lbANSI 300lbANSI 600lbANSI 1500lb
Compliance & Standards
Applicable Standards
| Category | Standards |
|---|---|
| Design | BS 1868, ASME B16.34, API 6D, DIN2533 |
| Face to Face | ASME B16.10, API 6D, EN 558, DIN 3202 |
| End Flange | ASME B16.5, ASME B16.47, DIN2501, DIN2533 |
| Inspection and Test | API 598, DIN3230 |
Material Composition
Standard Material Specifications
| Part | Carbon Steel | Stainless Steel (316) |
|---|---|---|
| Body | A216 WCB | A351 CF8M |
| Disc | WCB+13Cr1 | A351 CF8M |
| Bonnet | A216 WCB | A351 CF8M |
| Bonnet Bolt | A193 B7 | A193 B8M |
