Murphy Lube Level Maintainer - LM500

  • Test Feature (TF) allows test of float and switch

  • Direct Mount (DM) capable

  • Eliminates under/overfill due to “human error”

  • See oil level and condition without shutting down

  • Simple installation

  • Automatically maintains lube level

  • Low level, 3-wire, snap-action switch

  • Positive sealing Thumb-Valve™



Crankcase Balance Vent Connection: 1/2 NPTF (top).

Inlet Connection: 1/2 NPTF removable screen (side).

Outlet Connection: One connected, two not used, (plugged)
2 x 3/4 NPTF (side)
1 x 3/4 NPTF (bottom)

Thumb-Valve™ Material: Viton.

Snap-switch: SPDT rating 10 A, 125 VAC; 0.5 A, 125 VDC; 10 A, 30 VDC.

Wire leads: 18 AWG x 14 in. ± 2 in. (355 mm) length.

Conduit Connection: 1/2 inch conduit (female, top).

Case: Die cast aluminum

Lens: Clear “Frog Eye” non-staining, high impact, high temperature polycarbonate; UV and heat stabilized.

Dial: High visibility white background with solid green band for normal level indication.

Maximum Inlet Pressure: 9.50 psi/25 ft. oil (head pressure).

Maximum Case Pressure: 15 psi (103 kPa).

Maximum Differential: 2 in. (51 mm) between running and stopped.

Maximum Ambient Temperature: 250°F (121°C).

Float: 304 Stainless Steel

Flow Rates: Refer to LM500 Series Flow Rates chart for application data.

Dimensions: Overall 6-9/16 inch tall x 6-3/16 inch deep x 3-1/2 deep.
For exact dimensions, refer to document “00-02-0729 LM500 Installation Instructions”.

LM500/LM500-TF Shipping Dimensions: 9.5 (W) x 7.5 (D) x 11 in. (H) (241.3 (W) x 190 (D) x 279.4 mm (H)).

LM500/LM500-TF Shipping Weight: 3 lbs. 13.44 oz (1.74 kg)


send inquiry to us

Related Product