Q16SS Flow Switch

January 29th, 2019

The Q16 Stainless Steel is the newest addition to Harwil’s line of heavy-duty flow switches. This is a direct replacement for paddle style flow switches except it is Stainless Steel so it can be used in potable (drinking water). It is the offspring of the Q-5 SS which will outlast every flow switch (usually over
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How To Choose The Best Liquid Level Switch

August 2nd, 2018

A level switch is an electromechanical device used to monitor the level of liquid in a tank or reservoir.   They can be used to maintain the liquid level between and low and high point, or they can also be used to trigger an alarm when a low level or high level is reached.  Level switches are
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The Harwil Catalog is Now Online

November 13th, 2015

We’re making things interactive! The Harwil Product Catalog is now available for online viewing. Be sure to click here to check it out!

L-21 Level Switch in Carpet Cleaning

August 21st, 2015

  Using a L-21N level switch in carpet cleaner tanks is a great way to have level control.  Keeping up on maintenance and inspecting hoses will help prolong the life of the level switch and the carpet cleaner.  Having a kinked hose on the carpet cleaner could create a surge on the motor generating an
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Level Switch Rubber Boot

October 7th, 2014

Optional Filter Boot Available On Harwil Level Switches Harwil Corporation has added a unique optional filter boot to its existing Model L-8 series and Model L-30 series liquid level switches. This boot protects the seal area from intrusion of particle contaminates which can build up and cause mechanical sticking of switch actuation. Recent applications include
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