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DIESEL ENGINE CONTROL AND GENERATOR EQUIPMENTS >> FW MURPHY Process Monitoring Instruments >> Level Maintainers
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FW MURPHY Process Monitoring Instruments
Level Maintainers
- LM500, LM500-TF oil level maintainers
- LM2000 / LM2000S
- LM300 Series
- LR857
- LR579 / LR589
Level Switches
Pressure Sensors and Instruments
Speed/Time Sensors and Instruments
Temperature Sensors and Instruments
LR857



Murphy LR857 Lube Level Regulator maintains the crankcase oil level of an engine, pump or compressor. Adjusted to the correct running-oil- level, the LR857 will replenish oil as it is used. An integral, low-level switch will alarm and/or shutdown the equipment if supply oil is lost and the equipment continues to use oil.

http://www.rekarma.com.tr/yonetim/urunresimb/687_1.jpg

Application

The LR857 maintains oil level on any size engine, but is recommended for small to medium volume applications and installations that require a 3-wire, snap-action switch.

How the LR857 Maintains Levels

As crankcase oil level drops, the LR857 float also drops and opens the Thumb-Valve.™ This allows oil to flow from the supply tank, through the LR857, and into the crankcase. When proper level is attained in the crankcase, the LR857 float rises, causing the Thumb-Valve to close off further oil flow.

The simple and unique Thumb-Valve is non-clogging and provides a positive, leak-free seal.

Flow rate through the 1/8 inch (3 mm) orifice is significant to allow crankcase refill through the LR857.




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Catalogues and Technical Specs
 LR857




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