The concept of hydraulic valve (2)

Classification:

Classified by control method: manual, electric control, hydraulic control

Classified by function:flow valve (throttle valve, speed regulating valve, diverting and collecting valve), pressure valve (overflow valve, pressure reducing valve, sequence valve, unloading valve), directional valve (electromagnetic reversing valve, manual reversing valve, Directional valve, check valve, hydraulic control check valve)

Classified according to the installation method: plate valve, pipe valve, stack valve, threaded cartridge valve, cover valve

Require:

(1) The action is flexible, the function is reliable, the impact and vibration are small, the noise is small, and the service life is small;

(2) When the fluid passes through the hydraulic valve, the pressure loss is small; when the valve port is closed, the sealing performance is good, the internal leakage is small, and there is no external leakage;

(3) The controlled parameter (pressure or flow) is stable, and the amount of change is small when subjected to external interference;

(4) Compact structure, convenient installation, debugging, use and maintenance, and good versatility.