Murphy A20P-HLK-200 (05705672) PRESSURE SWICHGAGE - 200 PSI (HIGH/LOW, KNOB ADJ. CONTACT)

The A20P-150 Pressure Swichgage® is a 2" dial, diaphragm-actuated pressure-indicating gage with a built-in electrical limit switch, which is used for tripping alarms and/or shutdown devices. This dual-scale instrument has a range of 0-150 psi (1.0 MPa) [10 bar].

The gage mechanism is enclosed in a polycarbonate, break-resistant case and lens. A polished stainless steel bezel and O-ring seals help protect this rugged instrument from the external environment. Accuracy and protection from moderate overpressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning. Inside the A20P-150, the tempered nickel silver gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have a self-cleaning motion to ensure electrical continuity.

The A20P-150 Pressure Swichgage® was specifically designed to protect engines and equipment in oil field, marine, irrigation, construction and trucking applications by monitoring engine lube pressure, water pump pressure, hydraulic pressure and air pressure. This popular instrument features a beryllium copper diaphragm sensing element and a 1/8-27 NPTM brass process connection. The adjustable limit contact is an SPDT contact; pilot-duty only, 2A @ 30 VAC/DC; closed when the low limit is met, and open when the pointer is in normal operating range.

A20P Pressure Gauge Specifications

Murphy A20P-400 (05702525) PRESSURE SWICHGAGE - 400 PSI

Murphy A20P-100 (05704255) PRESSURE SWICHGAGE - 100 PSI

Murphy A20P-K-150 (05704281) PRESSURE SWICHGAGE - 150 PSI (KNOB ADJUSTING FACE CONTACT)

Murphy A20P-200 (05704257) PRESSURE SWICHGAGE - 200 PSI

Murphy A20P-30 (05704252) PRESSURE SWICHGAGE - 30 PSI

Murphy A20P-50 (05704515) PRESSURE SWICHGAGE - 50 PSI

Murphy A20P-HL-200 (05704441) PRESSURE SWICHGAGE - 200 PSI (HIGH AND LOW CONTACTS)

Murphy A20P-HLK-50 (05702296) PRESSURE SWICHGAGE - 50 PSI (HIGH/LOW, KNOB ADJ. CONTACT)

Murphy A20P-K-50 (05704278) PRESSURE SWICHGAGE - 50 PSI (KNOB ADJUSTING FACE CONTACT)

Murphy A20P-HLK-200 (05705672) PRESSURE SWICHGAGE - 200 PSI (HIGH/LOW, KNOB ADJ. CONTACT)

Murphy A20P-OS-100 (05704296) PRESSURE SWICHGAGE - 100 PSI (OIL SEALED)

Murphy A20P-OS-150 (05704297) PRESSURE SWICHGAGE - 150 PSI (OIL SEALED)

Murphy A20P-OS-400 (05702524) PRESSURE SWICHGAGE - 400 PSI (OIL SEALED)

Murphy A20P-150 (05704256) PRESSURE SWICHGAGE - 150 PSI

Murphy A20P-75 (05704254) PRESSURE SWICHGAGE - 75 PSI

Murphy A20P-300 (05704258) PRESSURE SWICHGAGE - 300 PSI

Murphy A20P-HL-100 (05704439) PRESSURE SWICHGAGE - 100 PSI (HIGH AND LOW CONTACTS)

Murphy A20P-HL-150 (05704440) PRESSURE SWICHGAGE - 150 PSI (HIGH AND LOW CONTACTS)

Murphy A20P-HL-50 (05704437) PRESSURE SWICHGAGE - 50 PSI (HIGH AND LOW CONTACTS)

Murphy A20P-HLK-100 (05702295) PRESSURE SWICHGAGE - 100 PSI (HIGH/LOW, KNOB ADJ. CONTACT)

Murphy A20PE-OS-300 (05754317) PRESSURE SWICHGAGE - 300 PSI (OIL SEALED)

Murphy A20PG-400 (05702526)PRESSURE SWICHGAGE - 400 PSI