One, three-in-one check valve (JLH type multi-function control valve) water hammer-free check valve function
1. Even if the pump outlet pressure is small, the valve can be lifted. Let the fluid pass through (0 04 ～ 07 kgf / cm2 to start working).
2. When the fluidity of the fluid is weakened due to stopping operation. The valve disc is affected by a spring. And closing the valve, this can completely prevent the general check valve from water hammer caused by backflow.
三合一止回阀 ，其密封垫是由合成橡胶制作的，因而可以吸收关闭阀擗时所产生的冲击，并且完全密封。 3. The three-in-one check valve has a sealing gasket made of synthetic rubber, so it can absorb the impact generated when closing the valve 擗 and is completely sealed.
Two-, three-in-one check valve (JLH type multifunctional control valve) gate valve (stop valve) function
Push the valve disc down with the valve stem. 活塞式遥控浮球阀 完全阻止流体。 Close to the valve seat, the piston-type remote control floating ball valve completely stops the fluid. Generally, the gate valve is contacted by metal, so it is impossible to form a complete seal, and the three-in-one check valve.
Because the valve disc is made of nitrile rubber, it can be completely sealed.
Three, three-in-one check valve (JLH type multifunctional control valve) balance valve function
You can adjust the opening of the disc by adjusting the lever up and down to adjust the flow rate of the fluid. With the indicator, you can observe the opening and closing status of the valve flap.
Four, three-in-one check valve (JLH-type multi-function control valve) main structural dimensions (the flange geometry dimensions refer to JB81-59 standard)