Pneumatic Blog

header photo

8 Considerations for Selecting a Directional Control Valve

Directional control valve dependability is basic in any weighty modern application. Choosing the right valve might be the most basic choice you'll make with respect to whether or not you will encounter disappointment, vacation, or breakdowns. Legitimate valve determination can assist with staying away from conceivable business interferences, natural calamities, or even death toll.

Each weighty industry application and its working climate are extraordinary. To choose the most dependable directional control valve, you should think about every one of the factors of your particular application. In light of over 70 years of involvement making the business' most solid valves, our architects at Airmax Pneumatic have aggregated the accompanying contemplations as a component of our suggested valve choice cycle:

1. Application Environment 

Consider all material ecological worries, which among others incorporate the presence of residue, soil, and bugs; climate and temperature; and the versatility and openness of the area the valve will be utilized in.

2. Media

 Determine what media the valve will control, which could incorporate compacted air, pressure-driven oil, water, flammable gas, or dormant gases.

3. Working and Available Pressure 

 What are the base and greatest strain prerequisites? Will the valve be pilot-worked, manual, or solenoid-pilot? Assuming the last option, will it be inside guided (InPilot) or remotely directed (ExPilot)?

4. Stream/Port Size and Location

 It is critical to put together the valve size with respect to the streaming factor (Cv) rather than the application. Various kinds of valves can have broadly shifting stream factors at a similar port size. Port size isn't the most dependable approach to appropriately measure a valve and regularly prompts curiously large valves, extra material, pointless cost, and higher establishment costs. Completely ported interior stream regions guarantee the most extreme stream for the relating port (pipe) association.

5. Work

 Do you require a 2-or 3-position valve? For instance, a 2-position valve is most usually used to compress or decompress a liquid power circuit. A 3-position valve fills a similar role as a 2-position valve yet adds the third capacity to an un-actuated valve. The third capacity happens when the directional control valve is in the middle position. The most widely recognized focus positions are on the whole ports impeded (APB) for fizzle last applications, chamber ports open to deplete, bay open to both chamber ports, and all ports open (APO).

6. Kind of Operators

 Know the necessary voltage, current, region arrangement, and entrance security. Indicate the sort of required electrical association. Flying leads, DIN (Hirschman style) connectors, and intersection boxes are generally normal. Class F curl protection is standard, while Class H is accessible for high-temperature applications. Power utilization is additionally huge. Low-power solenoid loops are accessible in 1.8W, 0.85W, and 0.5W.

7. Guideline or Speed Control

 Consider assuming strain controllers, speed controls, stream control valves, or potentially check valves are important for your application.

8. Upgraded Functionality for Safety and Redundancy

 Versa offers numerous choices for improving dependability and security. For added security, think about the Latching/Manual reset and the Shut Off Valve (SOV). Hooking manual reset valves are especially appropriate for applications where it is alluring or compulsory to physically reset or restart a framework. Stop Valves give a series pilot control circuit in a single valve for processes with different control signals. The deficiency of either sign will make the valve shift to the un-actuated position. To add overt repetitiveness, think about the Redundant Valve (RS). Excess Valves give equal control circuits in a solitary valve to stay away from process interferences for upkeep or disappointment of a solitary control circuit. The two curls should be de-empowered to move to the un-actuated position.

While almost certainly, not these contemplations will be pertinent to your specific application, managing the whole cycle ensures no appropriate ones are missed. Also, by following this cycle, you can guarantee you are thinking about every one of the huge ecological elements important to choose a tough, demonstrated, dependable valve for your careful application.


Go Back


Blog Search


There are currently no blog comments.