Classified by control method: manual, electric control, hydraulic control.
Classified by function: flow valve (throttle valve, speed control valve, diverting and collecting valve), pressure valve (relief valve, pressure reducing valve, sequence valve, unloading valve), directional valve (electromagnetic directional valve, manual change Valve, one-way valve, hydraulic control one-way valve).
According to the installation method: plate valve, tube valve, superimposed valve, threaded cartridge valve, cover valve.
According to the control mode: manual valve, motorized valve, electric valve, hydraulic valve, electro-hydraulic valve, etc.
