AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

Common Types of Hydraulic Valves and Their Working

Hydraulic systems are an important element of many applications, allowing for the properties of enclosed, pressurized fluids to be harnessed for the means of creating force. Whether a hydraulic system is present in a building, aircraft, or industrial facility, all necessitate proper control of fluid flow so as to manage how force is created and exerted. To do this, hydraulic valve components are used, such devices being able to check flow, redirect pressurized fluids, close lines, and more.

While hydraulic valves offer the essential role of managing fluid flow within a circuit, they are also able to govern the quantity of fluid power. Because of this, valves promote ample control over pressure and flow rate within various sections of a circuit. To regulate system pressure, hydraulic valves provide relief to pumps or bring high oil temperatures down before it reaches the hydraulic circuit. Depending on the system in question and its various requirements, there are a number of hydraulic valves that one may use, the most common being flow control, pressure control, and hydraulic direction control variations.

With hydraulic flow control valves, the flow volume moving through an assembly can be regulated efficiently. To do this, such valves feature an adjustable gate that increases or decreases flow based on its position. With a basic role, hydraulic flow control valves are often found in actuators, cylinders, motors, or other devices where they are situated within control circuits. Hydraulic flow control valves also come in various subtypes, examples including movable, pressure compensated, fixed flow, and throttling flow types. When choosing between options, you should keep in mind any requirements you may have related to flow rate.

With hydraulic pressure control valves, fluid pressure that is being sent through a hydraulic system can be regulated through restriction to maintain a desired value. As most hydraulic systems rely on a fixed range of pressure for optimal operations, such control valves are very useful. Aside from guaranteeing better performance, hydraulic pressure control valves also prevent pipe bursting and leaking that may result from rising pressures that exceed safe amounts. Like hydraulic flow control valves, hydraulic pressure control valves come in various types, examples including reducing valves, relief valves, sequence valves, counterbalance valves, and unloading valves.

As the last major category of hydraulic valves that we will discuss, hydraulic directional control valves are used when one wishes to have the ability to direct flow through multiple circuits or devices on demand. When in a discrete form, such valves will be simplistic, binary variations where a passing may be blocked to prevent flow as required. In other instances, directional control valves may also have multiple gates so that different ports may be served as necessary. When choosing which option is best for your needs, pay attention to the number of ports you require, how many spool positions are offered, how the spool is shifted, and what flow patterns are provided.

Whether you are interested in procuring a hydraulic pressure control valve, hydraulic directional control valve, or another variation, there is no better purchasing platform than Part Orbit. On our website, customers may peruse through countless items that cater to a diverse set of industry verticals, and everything we list is ready for purchase at any time. As such, we encourage you to explore our database at your leisure while taking advantage of our online RFQ service for rapid quote requests. With 24/7x365 availability, we are always just a click or call away from assisting you however we can. At Part Orbit, you are guaranteed top-quality parts and services with every order, so do not hesitate to begin the procurement process with us today!


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