Description
API stainless steel dual plate wafer check valve is mainly made up of valve body, disc and spring. It is used to prevent backflow and leakage of medium, and reversal of pump and driving motor. This stainless steel check valve can also be installed in auxiliary pipeline system to balance system pressure. This dual plate check valve is widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and other pipeline systems.
Advantages of Stainless Steel Check Valve
1. Two times shot blasting processing of valve surface make the valve look fine and smooth.
2. Disc of API stainless steel dual plate wafer check valve is with high strength and stiffness.
3. CNC processing technology is adopted to produce disc.
4. Disc restrainer is designed to prevent that the open position of disc is too high to be shut down.
5. Small friction between sealing surfaces ensures low wear rate of weld end check valve.
6. The disc sealing surface can be customized.
7. All our API stainless steel dual plate check valves have 18 months warranty.
Classification of Stainless Steel Check Valve
1. Swing Type Check Valve
2. Lift Type Check Valve
Working Process of Stainless Steel Check Valve
API stainless steel dual plate wafer check valve works automatically. It opens and closes depending on force from media flowing. It allows medium to flow through it in only one direction, and prevents reverse direction flow. Disc will open under the pressure of forward flow fluid. When fluid flows in reverse direction, the disc will be closed by fluid pressure and dead weight so as to cut off the flow.
Maintenance
1. For stainless steel check valves that are not to install temporarily, they should be stored in dry and ventilated room, side flange of the flanged valve must be sealed.
2. The dual plate check valve for long-term storage should be checked regularly. The surface of the valve must be clear of dirt and coated with anti-rust oil.
3. The following conditions of check valve should be inspected regularly after installation:
1) Wear pattern of sealing surface and rotary rocker
2) Dirt accumulation between the inner chamber of the valve body and sealing surface
Lanteky Valve Industry is a professional manufacturer of valves and strainers, such as ball valves, gate valves, globe valves, check valves, forged steel valves and Y type strainers. With high technology, great production capacity and strong innovation ability, we are able to provide high quality dual plate check valves. Our API stainless steel check valves occupy a large market at home and abroad. For more information, please enter our website or contact us directly.
