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Dwyer Flotect V12 Series Flow Switch
Dwyer Flotect V12 Series Flow Switch

Dwyer Flotect V12 Series Flow Switch

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Dwyer Flotect V12 Series  is a low-cost, versatile line of switches that can be used in a wide range of applications and configurations. Mountable in any orientation, the Series V12 Flow Switch utilizes a free-moving shuttle that is displaced by the liquid flow, activating an isolated, sealed reed switch.

Models can be used in media that is compatible with Noryl® GFN3, stainless steel and ceramic 1. FDA approved materials option has wetted materials of Noryl® GFN3, stainless steel and Teflon®.

Dwyer Flotect V12 Series Features

  • Flow Rate Settings of 0.5 to 5.0 GPM
  • Wide Range of Chemical Compatibility
  • Mountable in Any Orientation
  • Low Pressure Drop at Full Flow
  • FDA Approved Wetted Materials Option

Applications

Monitoring water and other compatible media flow, especially for the pool and spa industry; protect equipment due to loss of coolant or lubricant flow; process system operation; monitoring of chlorinators, water filtration, reverse osmosis and evaporators.

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Dwyer Flotect V12 Series Specifications

  • Service: Compatible liquids.
  • Housing and Shuttle: Noryl GFN3 (Polyphenylene Ether and Polystyrene).
  • Spring: 316 SS.
  • Retaining Clip: PH 15-7 MO stainless steel.
  • Magnet: Ceramic 8. FDA option: Teflon®.
  • Temperature Limits: 0 to 194°F (21 to 90°C).
  • Pressure Limit: 100 psig (6.90 bar) @ 70°F (21°C), 50 psig (3.45 bar) @ 194°F (90°C).
  • Switch Type: SPST normally open hermetically sealed reed switch.
  • Electrical Rating: 1.5A @ 24 VDC resistive, 0.001A @ 200 VDC resistive, 0.5A @ 125 VAC.
  • Accuracy: ±20%.
  • Electrical Connection: 22 AWG, 18″ (460 mm) long.
  • Process Connection: 1″ female NPT.
  • Mounting Orientation: Switch can be installed in any position but the actuation flow rates are based on vertical upflow pipe runs and are nominal values.
  • Set Point Adjustment: None.
  • Weight: 4.2 oz (0.119 kg).
  • Deadband: 20% maximum.
  • Agency Approvals: UL.
  • FDA approved materials option. For applications that require FDA approved materials, wetted materials are Noryl® GFN3, 316 stainless steel, PH 15-7 Mo stainless steel and Teflon®. To order, add suffix “-FDA”.
  • Example: V12-4-FDA.

Popular Models

Model
Number
Switch Activation Set Point on Increasing Flow (Water), Vertical Up Direction – Gallons Per Minute Switch Activation Set Point on Increasing Flow (Water), Vertical Up Direction – Liters per Minute
 V12-2  0.5 GPM  1.892
 V12-3  1.0 GPM  3.785
 V12-4  2.5 GPM  9.462
 V12-5  5.0 GPM  18.924

Reference : nciweb.net

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