Description
Product Description
Size: 1½” – 48″ (DN40 – DN1200)
Standard: DIN/BS/ANSI/Korean
Structure: Check
Pressure: PN10, PN16, PN25
Coating: WRAS approved epoxy powder at 300 micron thick
Media: Water
Certificate: ISO, SGS, CE
| Name | Material |
| Body | Ductile iron, epoxy spray coating |
| Cover | Ductile iron |
| Seat | EPDM Rubber |
| Bolt | Iron or stainless steel |
Features of Flap Check Valve
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, many check valves are very small, simple, and/or cheap. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
Advantages of Flap Check Valve
1. Precision casting made by self-owned foundry with three advanced casting production lines.
2. Visualization production. From the castings, the polishing, the machining, the FBE coating, the rubber making, the assembling, the pressure testing to the finished packed valves.
3. Such great raw material for valves, as finest Q10 &Q12 cast iron GGG50; EPDM instead of normal rubber; Coating at least 300 micron with WRAS approved.
A check valve is a mechanical device that allows liquids and gases to flow in only one direction, preventing the flow from being reversed. They are classified as one-way valves, which means they have two openings in the body, one for fluid to enter and one for fluid to leave. Fluid flow in the desired direction opens the valve, while backflow forces the valve to close.
Practicality of Flap Check Valve
Specifically, the flap check valve determines the direction of the gas or liquid through the piping system. Flap check valves are able to open fully in one direction, which allows a large amount of material to pass through without having a huge impact on the volume or pressure of the overall flow. However, flap check valves only operate in one direction, and substances cannot flow back through the system after passing in the desired direction.
Flap check valves are available in a variety of sizes and can be specially ordered to fit the pipe size in a specific application system. Gaskets are also recommended for valves larger than 8 inches. When installed with a flap check valve, the gasket allows the actual valve to open fully without interfering with the flow of material passing through.
Come to contact us to buy flap check valves, Jinghangyu will provide you with professional services.
