QUICK RELEASE VALVE
Folio 441-2
Operation
The quick release valve has 3 ports as shown in the illustrations. Air pressure
entering the IN port forces the diaphragm to seal the EXHAUST port and open a
direct passage between the IN and OUT (cylinder) ports.
When air pressure at the IN port is reduced and pressure is slightly greater at the
OUT port, the diaphragm is forced against the IN port. With the IN port sealed off,
a direct passage is opened between the OUT and EXHAUST ports, allowing the
operated device to vent quickly.
Diaphragm
Cover
Out
In
BodyExhaust
Valve Closed Valve Open
BodyExhaust
In
Diaphragm
Cover
Out
S113 S114
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