Description
DIN cast steel swing check valve, also called non return valve, is mainly made up of valve body, disc, bonnet and gasket. It is an automatic valve that is installed on one-way flow pipelines and used to prevent reverse flow and leakage of medium, such as fluid, gas, etc. This type of pipe valve is also applied to stop reversal of pump and driving motor.
Application
DIN cast steel swing check valve can be widely applied in pipeline systems, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and other pipeline systems.
Classification of Swing Type Non Return Valve
1. Single Plate Swing Check Valve
2. Dual Plate Swing Check Valve
3. Multiple Plate Swing Check Valve
Advantages
1. Our DIN cast steel swing check valves have passed CE certification.
2. High strength solid axis pin is installed precisely. It ensures excellent performance and long service life of valve.
3. CNC processing and precision casting technologies are adopted to produce disc.
4. Disc is with high strength and stiffness. The sealing surface of valve disc can be customized.
5. Disc restrainer is designed to prevent the situation that open position of disc is too high to be shut down.
6. Small friction between sealing surfaces ensures low wear rate of DIN cast steel swing check valve.
7. Two times shot blasting processing of valve surface make this non return valve look fine and smooth.
8. The rocker is with high strength. It can make enough space for valve to close.
Principle
DIN cast steel swing check valve opens and closes automatically 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.
Attentions
When installing DIN cast steel swing check valve, please ensure that
1. Vertical disc lift check valves should be installed on vertical pipes. Horizontal disc lift non return valve should be mounted on horizontal pipes.
2. The media flow direction should be consistent with the arrow direction marked on valve body.
Lanteky Valve Industry is a professional manufacturer and supplier of non return valves (check valves) in China. Our main products cover ball valves, gate valves, globe valves, check valves and strainers. All of our products have reached the standard of US API, Germany DIN, Russia GOST, Japan JIS, ISO9001 and CE. Our DIN cast steel swing check valves are widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy systems.
