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Series-FS-2

Vane Flow Switch for Boilers & Heaters, Adjustable 1-8 in Pipes

Models In Stock
  • Field adjustable set point adjustment screw allows for easy flow switch modification
  • Custom application set points enabled by field adjustable vane layers
  • Aluminum weatherproof housing permits outdoor installation
Series-FS-2
From $ 99.30
Models In Stock
Vane Flow Switch for Boilers & Heaters, Adjustable 1-8 in Pipes Series-FS-2 Series-FS-2
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Product Overview
  • Applications Fluid Measurement and Control
  • Compliance CE
  • Enclosure Ratings IP64, NEMA Type 4
  • Materials Aluminum
  • Media Compatibility Alcohols, Compatible Liquids, Oils, Water
  • Mounting Orientation Vertical
  • Operating Temperature, Max 230 °F
  • Pipe Size, Max 8 in
  • Pipe Size, Min 1 in
  • Measurement Pressure Type Gauge
  • Process Connection Size 1 in
  • Proof Pressure Up to 145 psi
  • Sensor Material Stainless Steel, Brass, Bronze
  • Set Point Adjustment Vane adjustments, Screw Adjustment
  • Switch Rating 10 A, 3 A @ 250 Vac
  • Switch Rating Note 10 A res, 3 A ind @ 250 VAC
  • Switch Type SPDT Snap
  • Weight 0.8 kg

The Series FS-2 Vane Flow Switches offers an economical flow proving solution. The FS-2 paddles are adjustable to fit 1 to 8" size pipe.

California Residents: Click Here for Proposition 65 WARNING.

Product Applications

  • Boiler flow proving
  • Hot water heaters
  • Chillers
  • Cooling lines
  • Machinery
  • Liquid transfer systems

Accessories

accessories

Replacement vane assembly
$18.20
36 In Stock
Rated 4 out of 5 by from Dwyer FS-2 vane-actuated flow switch I've used this flow switch on numerous projects and have found it to be a reliable and economical choice. Installation is quick and straightforward, and the adjustable vane design makes it adaptable to a wide range of pipe sizes and configurations. My only minor critique is that the vane is only available in stainless steel. In applications involving high chlorine levels, a more chemically compatible material would be preferable. Offering additional vane material options would make this an even more versatile product.
Date published: 2025-06-16
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