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The Advantages of Direct Drive Valves

Updated on January 15, 2010

Direct Drive Valves

For most manufacturers, finding the right component is a constant struggle. Companies are always on the lookout for the latest technological advances that will keep them competitive in the marketplace as well as profitable. One mechanism which comes in a multitude of varieties is the valve. Simply put, a valve is a device that controls the passage of fluids and gases through the act of shutting or opening different channels. Valves are integral for most areas of industry, including mining, waste water treatment, power generation, and transportation. These sectors, as well as others, all require different types of valves to fit their needs.

Furthermore, there are numerous categories of valve that are defined by how the valve is actuated. One of these types, the solenoid valve, is especially popular because of its ability to produce controlled magnetic fields. Additionally, this device is very effective at actuating both hydraulic and pneumatic valves. The hydraulic variety is very common because it is used to control the flow of oil to rams or sometimes actuators. They are frequently found in irrigation systems as well as pistons. Now one variety which differs slightly the standard solenoid is the direct drive valve. The main difference between this valve and other solenoids is that the valve spool is driven by force generated from its own armature rather than an outside source. This is an advantage because they require less energy to run. The only drawback is that they can’t generate the same level of driving force as other varieties, which means that, on occasion, they won’t function as well in situations with highly contaminated fluid. To combat this problem, most companies install a fine mesh filter to help reduce debris.

When deciding on any type of valve, understanding what performance levels are needed is crucial. For most hydraulic systems an ISO rating of 19/16 is all that is required. Properly engineered direct drive valves can achieve a rating of ISO 25/20. So for most hydraulic systems, this type of valve exceeds the normal industry standards. Additionally, they can be modified if you need more elaborate electronic controllers to meet your requirements. Any company which is looking to optimize their performance and efficiency would be wise to look into purchasing direct drive valves.


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