The S15A series of G3/4 threaded connection inline hydraulic leak-free isolation check valve allows hydraulic oil can only flow in one direction but not the reverse direction of the flow control valve.
Rexroth S15A, G3/4 Threaded Connection Non Return Valves
The check valves are widely used as many types:
1. Spring type: The hydraulic oil from the bottom up, relying on pressure from the top of the valve spring control pressure is removed, the spring force pressure, the valve closed liquid reflux. Commonly used for smaller diameter check valves.
2. Gravity type: Similar to the spring-loaded , relying on the valve flap gravity closed to prevent backflow.
2. Gravity type: Similar to the spring-loaded , relying on the valve flap gravity closed to prevent backflow.
3. Swing type : The fluid in the valve body through, relying on the pressure to open the top side of the rotary valve flap, pressure is lost, the valve to rely on since the return to bit reverse fluid pressure to close the valve.
4. Plastic diaphragm formula type: The housing and the diaphragm are plastic. General enclosure for ABS, PE, PP, NYLON, PC, the diaphragm has a silicone resin, a fluorine resin or the like of the other one way valve ( check valve), such as sewage stop return valve, explosion-proof valve and liquid check valve principle is much the same.
4. Plastic diaphragm formula type: The housing and the diaphragm are plastic. General enclosure for ABS, PE, PP, NYLON, PC, the diaphragm has a silicone resin, a fluorine resin or the like of the other one way valve ( check valve), such as sewage stop return valve, explosion-proof valve and liquid check valve principle is much the same.
Rexroth S15A, G3/4 Threaded Connection Non Return Valve Performance Curve:
