A mechanical device that controls the flow of the liquid, usually by opening and closing is referred to as a valve. The primary purpose of a hydraulic valve is to direct the flow of a liquid medium that will move actuators and loads through the hydraulic system. There are various types of hydraulic valves and it is important to choose the right one to get the best results.
Directional Control Valves
Directional control valves can control the start, stop and change in direction of flow of a pressure medium (i.e. hydraulic oil). Hydraulic valves as poppet or spool valve.
Type of directional control valves
- Directional poppet valves
- Directional spool valves
- Check and non-return valves
- About directional control valves
Pressure Control Valves
Every pressure control valve switches at a predetermined pressure setting. This occurs either gradually with variable throttle (control) or suddenly with a fixed throttle (switch).
Type of pressure control valves
- Pressure valves, relief function
- Pressure valves, reducing function
- Pressure valves, fixed throttle
- About pressure control valves
Proportional Control Valves
Proportional hydraulic valves are able to control the opening to flow proportionally instead of gradually, as is the case for most standard hydraulic valves.
Type of proportional control valves
- Proportional directional control valves
- Proportional pressure control valves
- Proportional flow control valves
- About proportional control valves
Flow Control Valves
Flow control valves manage the flow by decreasing or increasing the opening at the throttling point. This helps to determine speed of movement for the hydraulic actuators.
Type of flow control valves
- Flow controls, pressure compensated valves
- Flow controls, throttle valve
- About flow control valves