The Hydraulic Control Valve Is The Valve Which Is Used to Control The Pressure

The hydraulic control valve is the valve which is used to control the pressure. Generally speaking, it consists of a main valve and the matching accessories like the catheter, pilot valve, needle valve, ball valve and the pressure gauge. As to achieve some specified specifications, the manufacturers would produce various types of the hydraulic control valve according to the different operating functions and working conditions. For example, there are many further divided species. They are remote control floating ball valve, reducing valve, check valve, flow control valve and pump control valve and so on. Now, the details for two specified valve classified by the structure are introduced in the following. Although with different structures, the two types works under the same principle which means the pressure difference. The one is called as the diaphragm type and the other one is called as the piston type. The pilot valve would lead the diaphragm or the piston to work. Then, the force gained by the water would start to adjust the device of the main valve to be totally opened or closed or under regulation. Or it can be said in details as follows. When the water above the diaphragm or the piston is poured into the lower area, the pressure below would be greater than that of the upper area. At this moment, the device of the main valve is pushed to be totally open. On the contrary, the device would be under the state of totally closed. And it the pressure is in medium scale, the valve is regulating the flow. No matter what, if the all parts cooperate together well, the valve would be able to perform under the pressure difference. Source:lidaqd.com