Cast Iron/Ductile Iron Flanged Lift Check Valve
Disc =< DN50: Fully Stainless Steel
=> DN65: Steel with Stainless Steel Ring
Body: GG25 Cast Iron
Seat: Stainless Steel 304
Piston Disc: Cast Iron
Disc Ring: SS304
Spring: SS304
Nut: DIN 934
Sealing Ring: Graphite
Cover: GG25 Cast Iron
Screw: DIN933
- Sizes ranging from 2” to 12” (DN50 to DN300) to handle a wide capacity range
- Multiple pressure rating options (PN10, PN16, 125LB, 150LB) for compatibility with various system pressure requirements
- Cast iron (GG25) or ductile iron (GGG50) body providing strength and corrosion resistance
- Carbon steel bolts for durable, leak-proof sealing of the valve
- Ductile iron (GGG40) bonnet for resilient operation
- Chrome plated lift check disc made of 2Cr13 stainless steel for erosion resistance
- Stainless steel coil springs (SS304) to provide reliable opening/closing action
- Graphite gasket and 2Cr13 stainless steel body seal ring prevents leakage and ensures tight sealing
- Suitable for water, oil, and gas applications
- Shell tested to 1.5 times working pressure
- Seat tested to 1.1 times working pressure
- Flanged ends meet industry standards for convenient integration
| Specification | Details |
|---|---|
| Size Range | 2“-12”/DN50-DN300 |
| Working Pressure | PN10, PN16, 125LB, 150LB |
| Body Material | GG25, GGG50 |
| Bolts Material | Carbon Steel |
| Bonnet Material | GGG40 |
| Disc Material | 2Cr13 |
| Spring Material | SS304 |
| Gasket Material | Graphite |
| Body Seal Ring Material | 2Cr13 |
| Applications | Water, Oil & Gas |
| Shell Test Pressure | 1.5 x Working Pressure |
| Seat Test Pressure | 1.1 x Working Pressure |
Lift Check valves are specifically designed to respond quickly to pressure changes in order to prevent the flow of fluid in the reverse direction. This is crucial in preventing damage to equipment such as boilers and pumps. The valve is activated by the movement of the fluid within the pipeline. When the pressure of the fluid passing through the system exceeds a certain threshold, it opens the valve disc, allowing the fluid to flow. However, if there is any reversal of flow, the valve disc is immediately lost, triggering the closure of the valve. The check mechanism within the valve relies on back pressure to ensure proper closure. Additionally, the disc guides help to align the disc and seat configuration when the valve closes. These valves operate entirely automatically, relying on the differential pressure and velocity of flow within the line to perform their functions of opening and closing.
Jhy engineers have meticulously designed these valves to operate with minimal moving parts, ensuring frictionless movement and near-instantaneous closure. Learn more by visiting our contact page.
Ready to experience the Jhy difference? Visit their website at https://www.jhyvalve.com/ and discover how their lift Check valves can safeguard your system and ensure the smooth flow of your success.
