Bubble Lens for Murphy Level Maintainer LM300 Series

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This is the bubble lens component of the Murphy Level Maintainer LM300 Series. For information on Level maintainer LM300, click here.

Murphy SKU:9443 Category: Tag: Brand:

Available on backorder


The Murphy Bubble Lens Assembly 15000354 is designed for use with LM300 Series Level Maintainers. Fits on Lm300, LM301, LM302, LM303, LM304, LM305. Comes with O-ring, not gasket.

Additional information

Weight4 kg


Case/Cover: Die cast aluminum Switch Housing: Aluminum Approval Rating: All CSA Certified with switch contacts rated at 10 A at 250 VAC (standard) LM301 through LM305: CSA certified for non-hazardous locations. Enclosure Type 4 certified LM301-EX through LM305-EX: CSA certified for Class I, Groups C and D; Class II, Groups F and G hazardous locations. Enclosure Type 4 certified. Float: Rigid polyurethane foam; Polyurethane coated Max. Ambient Temperature: 250° F (121° C) Oil Inlet Connection: Top entry 1/2-14 NPT with built-in filter screen (removable for cleaning) Inlet Orifices: 1/4 in. (6 mm) standard; 1/8 in. (3 mm) available Wire (switch models): 18 AWG x 13 in. (1.0 mm2 x 330 mm) Max. Inlet Pressure (MIP): 30 psi (207 kPa) [2.07 bar] with 1/8 in. (3 mm) orifice 15 ft oil (4.6 m oil) with 1/4 in. (6 mm) orifice Max. Differential: 2 in. (51 mm) between running and stationary oil level Max. Case Pressure (MCP): 15 psi (103 kPa) [1.03 bar] Orifice Seal: Buna-N Thumb-Valve Switch Contact: Silver, SPDT snap-acting, rated at 10 A @ 125, 250 VAC; 10 A @ 30 VDC (1 only for low level; 2 only for high and low; or 2 only for low level with alarm before shutdown) Outlet Connection: 3/4-14 NPT left side, right side and bottom Crankcase Balance Vent Fitting: 1/2-14 NPT Mounting: Accepts Murphy pipe or universal mounting brackets Lens: Clear Frog Eye non-staining, high-impact, high-temperature nylon; UV and heat stabilized Glass Lens: Available on LM301 and LM301-EX models. Specify GL as part of model number when ordering Dial: High visibility white background with green and white index lines for normal level indication Test Knob: Rotate to test switch operation. Turn clockwise for low level test and turn counterclockwise for high level test.


Possible replacements and related products