Featured Products

CF-112 & CF-12

The chemical feed pump series of switches are built standard for low flow environments. To achieve the lowest flow possible, we use the thinnest blade with the most surface area for the given pipe size. When used as intended, the switch can provide reliable service for many years. When used in a higher flow rate environment the switch blade can be compromised by the forces and lose the hysteresis required to open the switch when flow is lost. The potential consequences are too numerous to list. The good news is we will customize your CF series flow switch as needed based on your pipe size and flow rate. By simply changing the blade on the flow switch we can eliminate these concerns. Finally, restoring lost hysteresis is relatively simple and can be done by the end user. Please call us so we can walk you through the process.

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About Harwil

Harwil has manufactured low-cost, highly-reliable flow and level switches for over 50 years. Our mission is to help companies succeed by providing them with extremely cost effective and reliable products with the quickest shipments in the industry.

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Flow Switches

Level Switches

Pump Controllers

Flow Switches

Level Switches

Pump Controllers

Wireless Switch Controller

About Harwil

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