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The 3325 is a poppet-type normally open adjustable
relay valve. The spring keeps this valve in an open
position and lets the air pass from the source of
supply to the device actuated. When air pressure
enters the pilot port the valve will go into a
closed and exhaust position. This stops the flow
of air from the source of supply and exhausts
the air from the device actuated. Several spring
ratings are available up to 120 PSI. This valve
lends itself extremely well for inter-locking
and time delay circuitry. It’s all bronze and
stainless steel construction will give many
years of trouble free service. This valve has
a full flow ¼ inch capacity without restrictions.
An optional inlet cap is available which is
equipped with an adjustable flow control that
permits the volume regulation of the supply air.
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