Flow

Switches

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Harwil understands these are difficult times. Our sympathies go out to all those affected by the pandemic. It is our obligation to maintain a safe working environment for our employees. As an essential service we have implemented a number of policies including requiring face coverings, social distancing, and limiting travel / customer visits to reduce exposure. We remain fully operational and ready to support our customers in any way we can.

Harwil has manufactured low-cost, highly-reliable flow and level switches for over 60 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

Featured Products


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Flow Switch – Adjustable Model Q-8 (Preview)

  • 6 GPM & up - adjustable
  • Pipe Size 1" & up
  • Max working  psig = 50 psig
  • Max Temp. 180˚F
  • Noryl (PPO), Fortron
  • 316 SS, EPDM, HastC, Viton
  • NEMA 6

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Level Switch – Model L-5 Stainless Steel

  • Max Temp. 180˚F
  • 300 psig
  • 2" NPT Bushing(1" NPT body)
  • 15 Amp
  • NEMA 4

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Flow Switch – Model Q-16SS Paddle Style

  • 4 GPM & up
  • Pipe Sizes 1” & up
  • Process Connection 1" NPT
  • 200 psig
  • Max Temp. 250˚F
  • 304 SS Body and Paddles
  • 304 SS Paddles EPDM Seal

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