Pneumatic Diagram
When the test pressure is vented, the airflow path is through Valve 1 (on) and out to atmosphere
through Valve 2 (off).
Debris from test parts or dirty air can be trapped between the spider seal and valve seat of the 2-
Way valve, holding the valve in an open position.
Valve Cleaning
Debris from test parts or dirty incoming air can be trapped in the 2-Way valve, holding the valve in
an open position.
The valve is accessed by loosening the knurled ring in the center of the valve counter-clockwise.
Once separated the spider seal and spacer ring can be removed to inspect the valve seat and
surrounding area for debris. The spider seal could also hold debris.
The valve is re-assembled by placing the spider seal into the lower section of the valve with the
bottom facing the valve seat, followed by the spacer ring, and lastly the valve coil is pressed into
the lower section secured by the knurled ring.
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