Level Switch Model L-40
Water Level Control in:
- Cooling Towers
- Plating Tanks
- Washing Tanks
- Reverse Osmosis
- Fish Farms
- Fountains & Pools
- Aquariums
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L-40N (NORYL®) WORKING FLUID SPECIFIC GRAVITY: Top Mount: 0.8 Side Mount: 0.7 WORKING PRESSURE: 200 psi max. continuous WORKING TEMPERATURE: 180˚F max. continuous. WETTED MATERIALS: Body, Float and Bushing: Noryl® (PPO) (10% glass fibers) Pivot Pin: 316 stainless steel |
L-40VCR (FORTRON®) WORKING FLUID SPECIFIC GRAVITY: Top Mount: 0.9 Side Mount: 0.7 WORKING PRESSURE: 200 psi max. continuous WORKING TEMPERATURE: 200˚F max. continuous. WETTED MATERIALS: Body, Float and Bushing: Fortron® (PPS) (40% glass fibers) Pivot Pin: HASTELLOY®C |
| L40 Group |
L-40N L-40N/NC L-40N/NO L-40N/SG L-40N/SG/NC |
L-40N/SG/NO L-40N/SG/SPDT L-40N/SPDT L-40VCR L-40VCR/SPDT |
L-40VCR/NO L-40VCR/SG L-40VCR/SG/NC L-40VCR/SG/NO L-40VCR/NC |
L-40VCRSG/SPDT |
ELECTRICAL (REED) SWITCH CHARACTERISTICS
SPNO (single pole normally open)
Contact Ratings:
AC Voltage (max. switching) 300VAC
DC Voltage (max. switching) 350VDC
Current (max. switching) 0.5A
Current (max. carrying) 2.5A
Power (max) (VA, W) 50 watts
Contact resistance (max. initial) 0.15 ohms
Insulation resistance 1010 ohms
Operating temperature -40°F–240°F (-40°C–115°C)
OPTIONAL: SPNC or SPDT, 3 watt, 100VAC/VDC.
HYSTERESIS (Δ LIQUID LEVEL TO ACTIVATE/DEACTIVATE SWITCH)
≈ 3/8” (0.375″) max. travel
INDUCTIVE LOADS
Switch contacts have been tested with small relays and 30A J-C relay inductive driving coils at 120/240VAC to 500,000 operations without failure. Steady state driving coil Volt/Amp rating should be 8VA or less.
DRY CIRCUIT OPERATION
Switch can interface with microprocessor based controllers and related computer circuits.
NOTE: Model L-40 employs magnetic coupling between float arm and switch body. Magnetic particles can accumulate on and around magnetic housing which may affect proper operation. Please conduct appropriate fluid magnetic particle evaluation and operational tests prior to and during installation and use.
L-40N
- Acetic Acid
- Ammonia Liquid 10%
- Chlorinated Water (Potable)
- Ethylene Glycol
- Glycolic acid
- Hydrochloric acid 20% – 37%
- Hydrofluoric acid 20%
- Hydrogen Sulfide Aqueous
- Mineral Oil
- Nitric Acid 10%-50%
- Phosphoric Acid 40%-100%
- Plating Fluids & Baths
- Sodium Hydroxide Solution 20%
- Soy Sauce
- Sulfuric Acid 10%
- Vinegar
- Water Distilled
- Water Fresh
- Water Mine Acid
- Water Salt
- Whiskey & Wine
L-40VCR
- Acetic Acid
- Ammonia Liquid 10%
- Benzene
- Diesel Fuel
- Ethylene Chloride
- Ethylene Dichloride
- Ethylene Glycol
- Glycolic acid
- Hydrogen Sulfide Aqueous
- Lubricants
- Mineral Oil
- Phosphoric Acid 40%-100%
- Propylene Glycol
- Sodium Hydroxide Solution 20%
- Sulfuric Acid 10%
- Water Distilled
- Water Fresh
- Water Mine Acid
- Water Salt
- Xylene