Hydraulic valves are used to contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. The specific types of valves range from those that have simple shutoff valves to precise control valves used in motion control systems. The basic components of a hydraulic valve are its body, bonnet, disc and seat. Other types of valves have variations of these components, depending on their specific functions. Hydraulic valves are very similar to other valves in general purpose, regulating flow and design, but unlike many others, hydraulic valves are strictly used in hydraulic-related systems and components.
Hydraulic valves allow the flow of fluid when in their open position and prevent flow when closed. These valves work in tandem with hydraulic cylinders , pumpsand motors to maintain a proper flow of hydraulic fluid through a system. Some examples of hydraulic valves that are commonly used include solenoid valves, ball valves, directional control valves and relief valves. These valves are used for sealing and releasing in different situations, and some allow flow in only one direction while others are capable of managing more. Many hydraulic valves are computer controlled and do not require the monitoring of an operator.
Hydraulic valves allow the flow of fluid when in their open position and prevent flow when closed. These valves work in tandem with hydraulic cylinders , pumpsand motors to maintain a proper flow of hydraulic fluid through a system. Some examples of hydraulic valves that are commonly used include solenoid valves, ball valves, directional control valves and relief valves. These valves are used for sealing and releasing in different situations, and some allow flow in only one direction while others are capable of managing more. Many hydraulic valves are computer controlled and do not require the monitoring of an operator.
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Last Updated: Sep 2009
Last Updated: Sep 2009
What are Hydraulic Valves?
Most valves are used within a fluid control system as a simple way to prevent improper levels of pressure and fluid from flowing. Some valves simply shut off flow when flow rates get too high. Other valves are designed to send impulses to valves further down the hydraulic line in order to provide a systematic balance of flow. Still other valves will direct the stream of the fluid to specific areas where fluid is needed, as do directional control valves. Directional control valves often have more than the standard two connections. Hydraulic tools and vehicles that use hydraulics commonly use these types of valves.
The size and shape of hydraulic valves can vary greatly. Narrowing of the fluid passage is a common method for reducing the overall size and cost of a valve. Sometimes a larger end is connected to a valve in order to make the valve capable of connecting to a larger line. Some valves use electro-magnetic power to actuate the valve. Current is applied to a coil within the valve and a magnetic field is created. These types of valves are used as a manual switch or control within a hydraulic system.
The size and shape of hydraulic valves can vary greatly. Narrowing of the fluid passage is a common method for reducing the overall size and cost of a valve. Sometimes a larger end is connected to a valve in order to make the valve capable of connecting to a larger line. Some valves use electro-magnetic power to actuate the valve. Current is applied to a coil within the valve and a magnetic field is created. These types of valves are used as a manual switch or control within a hydraulic system.
