L-5SS Liquid Level Switches


Specific Gravity Compensating

  • Featuring continuously adjustable float buoyancy control to allow use in fluids with specific gravity down to 0.6
  • Continuous buoyancy control allows switch activation at oil/water interface
  • Consult factory for other bicomponent fluid interface systems.

Wetted surfaces

302, 316 stainless steel, Viton elastomer seal, and Teflon gasket allow operation in a wide spectrum of environments such as:

  • Contaminated ground water
  • Hydrocarbons
  • Machine cutting oils
  • Medium concentrated acids and bases, etc.
  • Rusty coolant water
  • Sea Water
  • Sewage
  • Waste water
  • 15 amp, 120 or 230 VAC, SPDT or DPDT switch action
  • Gold Cross Bar Dry Circuit Computer/PLC Interface SPDT Switch Model also available
  • May be used in hazardous areas when used with intrinsically safe relays.
  • Temperature to 180°F
  • Pressure to 300 psig
  • Available in single float and double float models
  • For use in particle contaminated fluids.
  • Non-Magnetic
  • Horizontal Mounting Only
  • High/Low Liquid Level Alarm
  • Solenoid Valve On/Off Control


Double Float

Models L-5SS and LD-5SS

316 stainless steel body, float shaft, screws and washers, 302 stainless float, Viton®, Teflon® gasket, and Noryl® cover.


All media handled by Models L-5 and LD-5. Also chlorinated organics, hydrocarbons, phenols, medium concentrated acids and bases, compatible with 302 stainless, gasolines, oils.

Working Fluid Specific Gravity Range

Adjustable between 0.6 and 1.0+

Nominal Working Temperature / Pressure

180°F max. @ 300 psig

Liquid Level Change to Activate Switch

≈ 1/4″ travel

Weight: 3.5 lbs.

Electrical Switch Characteristics

  • SPDT
  • UL and CSA listed
  • 15 AMP, 1/2 HP @ 125 or 250 VAC
  • 1/2 AMP @ 125 VDC, 1/4 AMP @ 250 VDC
  • 5 AMP @ 125 VAC (Tungsten lamp load)
  • 10,000,000 mechanical operations median

SPDT – Dry Circuit

Gold Cross Bar Contacts for Computer/PLC Interface

0.1 amps or less 5-24 VAC/DC

UL & CSA listed

Installation Dimensions

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