Air Operated spool valves are actuated by compressed air, which is supplied to the valve to move the spool and change its position. In contrast, pilot operated spool valves are actuated by a small pilot signal that moves the spool, with the main fluid pressure used to amplify the movement and shift the valve position.
In other words, the pilot signal controls the main fluid flow in a pilot operated spool valve. Air Operated spool valves are typically used in applications where quick response times are not a concern and cost is a major consideration, while pilot operated spool valves are used in applications where quick response times and high flow control precision are required.
These spool valves are ideal for use in sensitive areas such as clean rooms and pharmaceutical and food processing sectors, where protecting the environment is of utmost importance. With a focus on quality and durability, the ASCO Series 551 552 553 Spool Valves are a reliable choice for your industrial needs.
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