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MURPHY EVOVATION CONTROLS
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FW Murphy Production Controls proudly offers a wide range of instrumentation and control solutions for the Oil & Gas Production and Natural Gas Compression markets. The same traditions of customer focus, innovated ideas and reliable products continue since its inception more than 75 years ago.

Products


Pressure and Vacuum

The 20DP and A20DP Series (2 inch/51 mm dial) and the 25DP and A25DP Series (2-1/2 inch/64 mm dial) Swichgage instruments are diaphragm-actuated, differential pressure-indicating gages with a built-in electrical switch.

Temperature

The 20 Series (2 inch/51 mm dial) and the 25 Series (2-1/2 inch/64 mm dial) Swichgage models are diaphragm-actuated, temperature-indicating gages with built-in electrical switches for tripping alarms and/or shut-down devices.

Fluid Level

The DVU Series are pneumatically controlled dump valves. The valves open and close automatically by pneumatic control from a FW Murphy level controller and dump valve operator. Diaphragm actuated, the DVU series dump valves operate at 30–70 psi (207–483 kPa) [2.07–4.83 bar] and up to 2000 psi (13.8 MPa) [138 bar] vessel pressure (depending on the model).

Time / Vibration / Overspeed

An OEM approach to an after-market application Two packages available: performance/efficiency package, optional emissions package (includes catalyst)

Mag Switches / Tattletale® Annunciators

Tattletale annunciators and magnetic switches are the nerve centers that translate Swichgage® contact operations into decisions and operate the alarm or shutdown device. These switches 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 magnetic switches do not. Magnetic switches operate basically as a latching relay.

Engine / Motor Controls

Optimizing your engine’s performance and maintaining emission compliance is easier than ever with the Murphy Engine Integrated Control System (EICS). It is a complete integration package pre-calibrated specifically for your engine model.

Comp. Controls / Panels

Designed specifically for tank battery vapor recovery compressors. Introducing the new FW Murphy VRU PRO. You know and trust the FW Murphy Production Controls name for your compression needs. Now experience the VRU PRO, dedicated to controlling your system and designed specifically for vapor recovery applications. This Class I, Div. 2 hazardous area rated unit gives you the peace of mind required for your hazardous natural gas applications.

Valves

These fuel shutoff valves are semi-automatic devices for shutdown of natural gas-fueled engines. The valve is opened manually and closes when the electromagnet is energized and trips the latch. The valve can be closed manually by turning the disconnect knob. A normally energized model is available that holds the valve open electrically and closes when the coil is de-energized. A vent in the valve body relieves trapped gas when the valve closes. A pop-out indicator button informs you when the valve is open or closed.