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The 3326 is a poppet-type normally closed relay valve. The
spring keeps this valve in a closed position. The supply line
is blocked and the out going line is vented through the
exhaust port. When air pressure enters the pilot port the
main spring is compressed. This will permit the supply air to
flow through the out port and close the port to exhaust.
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 1/4 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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