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Murphy Temperature Switch Gauges Murphy temperature switch gauges play a vital role in the operating efficiency of diesel engines and are used in engines from the construction and industrial to marine and trucking industries. Trust the reliability of the 20T series mechanical temperature gauges.
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Murphy Low Pressure Gauge The 20 Series (2 inch/51 mm dial) model is diaphragm-actuated, pressure-indicating gauges, with built-in electrical switches. These switches are used for tripping alarms and/or shutdown devices. The 20P7 model includes a front, semi-automatic lockout for startup override. This built-in device holds the pointer away from the contact on startup. When pressure exceeds the set point, the lockout is automatically disengaged. The gauge mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. Accuracy and protection from moderate over pressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning. The gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts are grounded through the SWICHGAGE® case and have self-cleaning motion to ensure electrical continuity and have internal snap-acting SPDT switches. Brand Name: Murphy
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Murphy Engine Panel - 75160 Series
This Swichgage panel is specifically configured for irrigation engines and includes loss of pump discharge pressure Swichgage instrument. The panel is enclosed on top, bottom, and both ends. Mounting flanges extend on top and bottom. The back of the panel is open. Access holes are in the bottom. Panel Kits Include:- Low Lube Oil Pressure Swichgage instrument
- High Coolant/ Temperature Swichgage instrument
- 518PH Magnetic Switch.
- PB128S Emergency stop push button.
Click Here for Swichgage® Shutdown Panels for Irrigation Engines and Pumps Brochure
For diesel engines without shut-down solenoid in the injection pump, add a Murphy SV Series solenoid fuel shut-off valve.
We stock the SV-12 and SV-24 in an effort to meet your needs.
Brand Name: Murphy -
WD300 Diesel Panel
WD300LV Model (LV = Less Valve) for engines that have the fuel shut-off solenoid built into the injection pump. This model also applicable to battery ignition engine. The standard WD300 Series panel includes basic engine protection for low oil pressure and high coolant temperature.Click Here For Diagram
Panel Kits Include:- Low Lube Oil Pressure Swichgage instrument.
- High Coolant/Temp Swichgage instrument.
- 117PH Magnetic Switch.
- PB128S Emergency Stop Push Button.
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The SV-series valve is a normally closed valve that opens when current is supplied from the battery through a magnetic switch. Temperature, level, or pressure SWICHGAGE® instruments installed on the engine and pump or compressor, trip the magnetic switch, breaking the circuit from the battery which closes the valve and stops the engine. The 24 VDC (SV-24) valves open against 30 psi. (207 kPa) [2.07 bar] inlet pressure. Brand Name: Murphy
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The SV-series valve is a normally closed valve that opens when current is supplied from the battery through a magnetic switch. Temperature, level, or pressure SWICHGAGE® instruments installed on the engine and pump or compressor, trip the magnetic switch, breaking the circuit from the battery which closes the valve and stops the engine. The SV-12 valve operates on 12VDC, has a 1/4 NPT inlet and outlet, and a full 3/16 inch (5 mm) orifice. Brand Name: Murphy
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Murphy High - Low Switch (Choose Your PSI) All versions feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from front of the swichgage instrument. Limit contacts have self-cleaning motion to enhance electrical continuity. The OPL-series pressure swichgage instruments are combination pressure indicating gauges with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or start/stop of engines and electric motors. The OPLC is a surface mount, indicating, pressure gauge and switch. Adjustable high and low limit, ungrounded contacts are used to operate alarm, shutdown or start-stop circuits. Pointer closure against either of the adjustable contacts completes the pilot-duty circuit. Pulsation Dampeners are recommended to be used in line with these gauges to ensure gauge longevity. Please visit the Pulsation Dampener HERE Brand Name: Murphy
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TATTLETALE® annunciators and Magnetic Switches are the nerve centers that translate SWICHGAGE® contact operations into decisions and operate the alarm or shutdown device. They are the electrical load carrying devices for the alarm or shutdown device. TATTLETALE® annunciators indicate which monitored function failed leading to the alarm or shutdown whereas magnetic switches do not. Magnetic switches operate basically as a latching relay. *Multi-voltage AC or DC systems. Coil Resistances (OHMS): 822PH - 30
Click here for TATTLETALE® Annunciators and Magnetic Switches Brochure
Brand Name: Murphy -
518APH 12 Volt Magnetic Switch TATTLETALE® annunciators and Magnetic Switches are the nerve centers that translate SWICHGAGE® contact operations into decisions and operate the alarm or shutdown device. They are the electrical load carrying devices for the alarm or shutdown device. TATTLETALE® annunciators indicate which monitored function failed leading to the alarm or shutdown whereas magnetic switches do not. Magnetic switches operate basically as a latching relay. Coil Resistances (OHMS): 518APH - 339 for 12 Murphy Tattletale® Annunciators and Magnetic Switches Brochure Brand Name: Murphy
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Magnetic Switch - 117 -12/24 volt* TATTLETALE® annunciators and Magnetic Switches are the nerve centers that translate SWICHGAGE® contact operations into decisions and operate the alarm or shutdown device. They are the electrical load carrying devices for the alarm or shutdown device. TATTLETALE® annunciators indicate which monitored function failed leading to the alarm or shutdown whereas magnetic switches do not. Magnetic switches operate basically as a latching relay. *Multi-voltage AC or DC systems Coil Resistances (OHMS): Product - Coil Resistance in OHMS, or coil and resistor 117 - 18 TATTLETALE® Annunciators and Magnetic Switches Brochure Brand Name: Murphy
