The A20 Series Murphy pressure gauge is a diaphragm-actuated, pressure-indicating gauge, with built-in electrical switches for tripping alarms and/or shutdown devices. The A20P the gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact.
PRESSURE SWICHGAGE - 150 PSI (KNOB ADJUSTING FACE CONTACT)
PRESSURE SWICHGAGE - 50 PSI (HIGH/LOW, KNOB ADJ. CONTACT)
PRESSURE SWICHGAGE - 200 PSI (HIGH/LOW, KNOB ADJ. CONTACT)
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