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Harwil - Model L-5 -Heavy Duty Level Switches
FromHarwil Corp.
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. May be used in hazardous areas when used with intrinsically safe relays. Consult factory for other dual-component fluid interface systems. Horizontal Mounting Only High/Low Liquid Level Alarm Solenoid Valve On/Off Control.
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- Horizontal Mounting Only
- High/Low Liquid Level Alarm
- Solenoid Valve On/Off Control
- Working Fluid Specific Gravity: Adjustable between 0.6 & 1.0+
- Working Temp: 180˚F (82˚C) Maximum
- Working Pressure: 300 psi (2,068 kPa)
- Process Connection: 1″ NPT
- Electrical Switch: SPDT (single pole double throw) 15A or Dry Circuit
- Enclosure: NEMA 4 / IP 66
For use in particle contaminated fluids, such as:
- Medium Slurries
- Contaminated Ground Water
- Sewage
- Machine Cutting Oils
- Waste Water
- Alcohol
- Glycol
- Oils
Water Level Control in:
- Cooling Towers
- Plating Tanks
- Washing Tanks
- Reverse Osmosis
- Fish Farms
- Fountains and Pools
- Aquariums
- Hysteresis (Δ Liquid Level To Activate/Deactivate Switch)
- ≈ 1/4″ Travel
- Working Fluid Specific Gravity Range
- Adjustable between 0.6 and 1.0+
- Working Pressure
- 300 psi max. continuous
- Working Temperature
- 180˚F max. continuous.
- Wetted Materials (Red Brass)
- Body and Bushing: Red brass Float Shaft: Phosphor bronze Hardware: 316 stainless steel Float: 304 stainless steel Seal: EPDM Gasket: Cork/Nitrile blend
- Wetted Materials (Stainless Steel)
- Body, Bushing, Float Shaft, Hardware: 316 stainless steel Float: 304 stainless steel Float Coating: Everlube 6108 PTFE Seal: Viton or FKM Gasket: Teflon or PTFE
- Electrical Switch Characteristics
- SPDT (single pole double throw) 15 A, 1/2 hp @ 125 or 250VAC .A @ 125VDC, .A @ 250VDC 5A @ 125VAC (Tungsten lamp load) 10,000,000 operations median
- Gold Cross Bar Dry Circuit Computer/PLC Interface SPDT Switch Model also available.
Diagram