Directional control valves allow fluids or gases to flow into different paths from valve ports, which provide a passageway for flow to or from other components/sources. They are one of the most important parts of hydraulic and pneumatic systems.
A directional control valve consists of a mechanically or electrically actuated spool inside a cylinder. The spool’s position allows or prevents fluid flow within the passageway; this often occurs instantly, causing fluid to accelerate and decelerate rapidly.
Direction Control Valves Ports & Positions
When selecting a directional control valve, two primary elements must be considered: the number of ports and directional positions the valve can achieve. The number of positions refers to the number of flow paths a valve can provide.
Directional Control Valve Applications
Mobile Hydraulic Directional Control Valves are used in the Agricultural, Industrial, and Mobile industries to provide smooth operation, low-pressure drop, and rapid response for precise fluid control in a lightweight constructed valve. These valves are rated at 2000 psi and flows to 10 GPM. Their applicability makes them increasingly sought after and are used in many applications, such as:
Manual operated valves are operated with levers or paddles that require force to open and close the valve. Occasionally spring force is required to recover the valve position. In contrast, some manual valves use a lever or external pneumatic or hydraulic signal to return the spool to its original position.