• Murphy

L100 / L120 / L127 / L128

Float Actuated Oil Level Swichgage instruments are a combination oil level sight gage and adjustable, low and/or high limit switch.

The limit switches are normally open during operation — yet closed if the level drops (or rises) to where the float contacts the limit screw. The contact completes a circuit to ground a magneto or trip a Murphy magnetic switch. The magnetic switch can be used to activate alarms and/or shut down. Models are also available without limit switches. The level instruments can be used on a variety of crankcases, pump gearcases or oil reservoirs — primarily on small engines and pumps. Installation is simple, and these instruments save on reduced downtime and repair costs.

  • CE (European Conformity) mark
Specifications Downloads Models
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Specifications Drawer: 
  • Maximum Pressure Rating (all models): 30 psi (207 kPa) [2.07 bar]

L100 and L100W

  • Case: Die cast aluminum
  • Float: Brass
  • Rating: 2 A @ 30 VAC/DC
  • Vent Fitting: 1/4 in. (6 mm) tube x 1/8 NPT
  • Inlet Fitting: Hex Nipple 1/4 NPT

L100:

  • Copper Tubing: 1/4 x 48 in. dia. (6 mm x 1.2 m)
  • Reducer Bushing: 1/2 NPT x 1/4 NPT
  • Close Nipple: 1/2 NPT
  • Tee: 1/2 NPT, black pipe
  • Wire: 16 AWG x 24 in. (1.5 mm2x 610 mm)

L100W:

  • Vent Tube: 1/4 x 3-3/8 in. (6 x 86 mm)
  • Reducer Bushing: 3/4 NPT x 1/4 NPT
  • Close Nipple: 3/4 NPT
  • Tee: 3/4 NPT, black pipe
  • Wire: 16 AWG x 24 in. (1.5 mm2x 610 mm)

L120

  • Case: Cast Aluminum
  • Float: Brass
  • Rating: 2 A @ 30 VAC/DC
  • Mounting Bolts: 1/4-20 UNC–2A (4 required)

L127 and L128

  • Case: TROGAMID Nylon
  • Float: Brass
  • Rating: 2 A @ 30 VAC/DC
  • Wire: 16 AWG x 48 in. (1.5 mm2 x 1.2 m)
  • Mounting Bolts:
    • L127: 1/4-20 NC x 2 in. (4 required)
    • L128: 3/8-16 NC x 3/4 in. (2 required)

 

Additional product documentation can be found on our product support website or by clicking the Help Center button above.

  • L100: Small engines and pumps with non-vented crankcase
  • L100W: Small engines and pumps with vented crankcase
  • L120: Machined surface on crankcase such as Witte, National-Oilwell/Garland
  • L127: Machined surface on crankcase, specifically, Fairbanks-Morse ZC Series and Bell Engines
  • L128: Machined surface on crankcase, specifically, Arrow and Continental Emsco/Climax

† Models available with high and low options.