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| 4222 - High Flow Pneumatic Pressure Switches |
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Pressure Temperature Gas Level Flow Limit Switch box Vibration switches Diaphragm seals Accessories |
 INSTRUCTIONS |
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| In brief This pneumatic pressure switch is a three-way block and bleed valve, operated by pressure acting on the piston opposing an adjustable spring force. It functions as a normally closed or normally open valve, depending on which of the two ports is under pressure (pneumatic or hydraulic). These ports are marked as "HI IN" or "LO IN" on the switch body. The output port, marked "OUT" on the switch body, is the same for both modes of operation. Pressure applied to the sensing port will cause the valve to operate. |
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