Uses
Water Level Control in:
- Cooling Towers
- Plating Tanks
- Washing Tanks
- Reverse Osmosis
- Fish Farms
- Fountains & Pools
- Aquariums
Water Level Control in:
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L-21+ & L-21N (NORYL®) WORKING PRESSURE: 250 psi max. continuous WORKING TEMPERATURE: 180˚F max. continuous. WETTED MATERIALS: Body, Float and Bushing: Noryl® (PPO) (10% glass fibers) screws + shaft: 316 stainless steel or Teflon® |
L-21VCR (FORTRON®) WORKING PRESSURE: 250 psi max. continuous WORKING TEMPERATURE: 200˚F max. continuous. WETTED MATERIALS: Body, Float and Bushing: Fortron® (PPO) (40% glass fibers) screws + shaft: HASTELLOY® C |
| L21 Group |
| L-21N |
| L-21VCR |
HYSTERESIS (Δ LIQUID LEVEL TO ACTIVATE/DEACTIVATE SWITCH)
≈ 5″ max. travel (N/VCR).
ELECTRICAL SWITCH CHARACTERISTICS
SPDT (single pole double throw) 15 A, 1/2 hp @ 125 or 250VAC .A @ 125VDC, .A @ 250VDC 4A @ 125VAC (Tungsten lamp load)
Note: Model L-21 employs magnetic coupling between float arm and switch body. Magnetic particles can accumulate on and around magnet housing which may affect proper operation. Please conduct appropriate fluid magnetic particle evaluation and operational tests prior to and during installation and use.
WORKING FLUID SPECIFIC GRAVITY
0.7 minimum
