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Product category: Pneumatic equipment
News Release from: Asco Numatics | Subject: 551 (G1/4") range of valves
Edited by the Manufacturingtalk Editorial Team on 16 October 2003

Smaller valves offer higher pneumatic
flows

OEMs and end users can reduce equipment costs, by making use of higher flow performance from valves offering a 25% smaller body size with new manual and mechanically operated versions.

ASCO Joucomatic is enabling OEMs and end users to reduce equipment costs, by providing higher flow performance (860 l/min) from a 25% smaller body size with new manual and mechanically operated versions of its 551 (G1/4") range of valves The new operators, push button, lever (2 and 3 position) roller and foot pedal, complement the existing range of solenoid and air operated 551 valves, providing the ultimate in control versatility from one valve series

Designed for semi-automatic applications where either space constraints or flow requirements do not permit the use of sub-base mounted valves, the manually operated 3/2, 5/2 and 5/3 (3 positions held) 551 units are designed for use in industries such as testing, general manufacturing, work holding, glass manufacturing, food processing woodworking and many more.

The valves offer high flow to directly operate single or double acting cylinders, rotary actuators and intensifiers, or to provide pilot signals on larger equipment such as process valve actuators.

The wide range of actuators available from the 551 range, counting both the new manual types and the existing auto variants, ensures that designers/users are not called upon to "mix and match" valves simply to achieve a control solution.

Included in the new manual introductions are robust in-line roller valves for use in end-sensing and cam operations, substantial button (spring return or push-pull) and pedal operators, and 2 and 3 position lever actuators.

Both of the latter units are designed to hold position once operated, ensuring that pressure is maintained to an actuator thus reducing the risk of accidents.

Excellent operational reliability is ensured by the 551 design, which incorporates ASCO Joucomatic's patented "T" seal arrangement.

This guarantees low stiction and breakaway friction even if the valve has not been operated for long periods.

The "T" seal design also means that the 551 valves are able to operate on dry filtered air or neutral gases, so there is no possibility of product contamination from lubrication.

However, "dry" operation is not exclusive as the 551 range also operates with equal levels of reliability when lubricated conventionally.

The flexibility of the 551 spool valve configuration enables 3/2 and 5/2 versions of the valves to be employed both as normally closed, or, by simply by connecting the supply to the exhaust port, normally open at rest valves.

This flexibility, plus a robust space saving design and a wide operating temperature range from -10oC to +60oC means that the valves are suitable for a wide range of applications, including those undertaken outdoors. Request a free brochure from Asco Numatics ...

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