What Is a Valve Cone?
Hydraulic control valve (referred to as hydraulic valve for short) can be divided into slide valve (or rotary valve), ball valve, poppet valve , nozzle baffle valve, jet pipe valve and so on. [1]
Poppet valve
- Compared with the above two structural forms, from the perspective of fluid mechanics, the (2) form is mostly used, and the (1) form maintains a sharp edge at the valve port. After the fluid flows there, the flow cross-section suddenly changes. , Easy to produce cavitation, so that the valve can not maintain a stable working state. [2]
- By changing the poppet's
- with
- The application of poppet valve is very wide, and it is used in directional control valve, pressure control valve and flow control valve to realize its function.
- Among the directional control valves: poppet-type direct check valve, poppet-type hydraulic control check valve, etc .;
- Pressure control valve: DBD type direct-acting relief valve, two-section concentric relief valve, etc .;
- Among the flow control valves: overflow throttle valve, needle throttle valve, etc. [1]