Shanghai Jianggong Valve Manufacturing Co., Ltd.
Shanghai Jianggong Valve Manufacturing Co., Ltd. Industrial valve expert With safe and reliable products To provide you with thoughtful services
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Cast Steel Stainless Steel Lift Type Forged Check Valve With Flange Connection
Product introduction:
Check valve also known as automatic safety mechanism called a is used to allow fluids and gases to flow in one direction while preventing reverse flow. These valves seal tightly to stop leaks and guarantee that gases or liquids are flowing in the proper direction and prevents major harm to pumps and compressors by regulating the flow of liquids.
The lift type check valve is equipped with a guide rod, which can freely lift and lower inside the valve cover guide hole. When the pipeline medium flows in the specified direction and the pressure below the valve disc exceeds the pressure above, the disc is pushed up along the centerline of the cover guide hole, and the door automatically opens, allowing the medium to flow; If the fluid flows in the opposite direction, the pressure above the valve disc is greater than the pressure below it. The pressure difference between the upper and lower parts, as well as the weight of the valve disc, compress the valve disc tightly on the seat, preventing the medium from passing through and preventing the fluid from flowing back; And the higher the fluid pressure in the pipeline, the tighter the sealing surface is pressed, and the better the sealing effect.
Product technical paramters:
| Nominal Diameter DN (mm) | 1/2"-2" | |
| Nominal Pressure PN (MPa) | 150LB, 300LB, 600LB, | |
| Test Pressure (MPa) | Strength (water) | 1.5 times of pressure nominal |
| Enclose (Water) | 1.1 times of pressure nominal | |
| Main Components | Valve body | A105, LF2, F11, F22, F304, F304L, F321, F316L |
| Disc | Steel | |
| Seat | Steel | |
| Bonnet | A105, LF2, F11, F22, F304, F304L, F321, F316L | |
| Packing | Graphite | |
| Working temperature | ≤600℃ | |
| Medium suitable | Water, steam and oil etc. | |
| Connection | Screw and welded connection | |
Product features:
1. Forged steel check valves have a wide range of applications and can be used in pipelines in various industries such as water, steam and oil, natural gas, chemical, metallurgical, power, water conservancy, papermaking etc .
2. Forged steel check valves are mainly used to prevent the reverse flow of the medium.
3. Forged steel check valves have corrosion resistance, compact structure, high reliability, long service life, and are easy to maintain and repair.
