FLOW and LEVEL SWITCH SPECIALISTS Whether designing a new water purification system, a pollution remediation device, or an irrigating greywater distribution network, visit Harwil Corp's new website for the flow and level switch which meets your project specifications. Harwil flow and level switches, controllers, and relays are steadfastly reliable and competitive in cost. Call 800-562-2447 and visit www.harwil.com.
LOW COST – HIGH PERFORMANCE Feature Variable Liquid Level Differential PLUS Single Point Pump Up/Pump Down Level ControlComponent Recognized (E85349) Four field replaceable liquid...
Component Recognized (E85349) VERY LOW COST For use in water and mild acids and bases.* Temperature Sensor (Optional) NTC or RTD type thermisters. NTC or RTD type thermisters ...
Component Recognized (E85349)True flow switch performance at a price competitive with pressure switches Specialized cables and connectors available for O.E.M. applications. Available...
Side and Top MountCorrosion Resistant Plastic with Optional Metal Pivot Pin Noryl Polyphenylene Oxide (PPO) is suitable for acid and base solutions, pure water, process water,...
Noryl (PPO) with Optional Filter BootComponent Recognized (E85349)For Use in Highly Particle Contaminated Liquids: Sewage Waste water Contaminated ground water Machine cutting...
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...
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...
10 to 102,000+ GPM, for pipes 1”-48”+316 STAINLESS STEEL – Teflon – Viton – WETTED SURFACESFor Use in Mildly Corrosive ChemicalsGenerally accepted for use with 316 Stainless Steel...
4 to 70 GPMDetects and Signals Flow Change Superior Long Term Performance Continuous Adjustment While Operating Line Pressure to 300 psig Temperature 180°F Continuous Four individual...
0.12 to 8.0 GPM Detects and Signals Flow Change Superior Long Term Performance Continuous Adjustment While Operating 6 Interchangeable orifices plus 2:1 cont. Switch adj. each...
Small size and easily installed, the versatile Q-12N fluid flow switch detects changes from 1 GPM in ¾ inch pipe to 590 GPM in 8 inch pipe or greater. Purchase the switch in Noryl...
The hot, new innovation from Harwil Corp combines the functions of temperature sensing and fluid flow switching. The newest switch senses temperatures from 0 to 70 C while switching...
Submersible and easily mounted from top or side, Harwil Corp’s L-40 N (Noryl) and L-40 VCR (Fortron - for corrosive fluids) reliably signals fluid level changes to on/off pump...
For medium slurries, particulate and corrosive chemical solutions, the L-30 Liquid Level Switch from Harwil Corp can dependably control pumps, alarms, or solenoid valves. Made...
When designing an ozone generator, a well water purification system, or a UV water purification system, the flow switch needs to fit the pipe size, trigger the electrical response...
When the water’s too hot, shut off the heater! Or, sound the alarm! The newest product introduction from Harwil Corp, the Temperature Sensor, signals a computer to activate an...
