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DIESEL ENGINE CONTROL AND GENERATOR EQUIPMENTS >> FW MURPHY Process Monitoring Instruments >> Level Switches
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FW MURPHY Process Monitoring Instruments
Level Maintainers
Level Switches
- Scrubber Level System
- MLS Liquid Level Switch
- LS200 / LS200N / LS200NDVOR / L1100
- L129 Lube Level Switchgage
- L100 / L120 / L127 / L128 Float activated Oil Level Switch
- L150 / EL150K1 / EL150EX Level Switchgage
- L971 Low Level Switch
- DF755 / DF755EX / DF757
- BLSK1
- OPLH Series Level Switchgage
Pressure Sensors and Instruments
Speed/Time Sensors and Instruments
Temperature Sensors and Instruments
L971 Low Level Switch



The Murphy L971 Series Level Switch detects low oil level in a compressor’s crankcase. As oil level in the crankcase depletes, the float on the L971 switch falls, and if reaches the predetermined limit, will trip the internal snap-switch which in turn will initiate a shutdown and/or alarm.
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The L971 is designed for Ingersoll-Rand Type 30, Type 40 and ESH compressors, yet can be adapted to fit other compressors that have an inspection plate extending below normal operating oil level.

The L971 has a 1/2 NPT process connection and features an explosionproof enclosure, durable SPDT snap-switch and rigid polyurethane foam float. A 304 stainless steel float is available on certain configurations.



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Catalogues and Technical Specs
 L971




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