Dwyer Series V8 Flotect® Vane Operated Flow Switch

The Dwyer Series V8 Flotect® Vane Operated Flow Switches are ideal for protecting unattended equipment from damage or loss of production. This Series is available for installation in a 1 to 6″ pipe with operating pressures are up to 150 PSIG (10 bar) and temperatures to 212°F (100°C).

Product Applications

  • Chemical processing
  • Air conditioning
  • Refrigeration
  • Heating systems
  • Cooling lines
  • Machinery
  • Liquid transfer systems
  • Water treatment
  • Food processing
  • Machine tools

Service : Compatible gases or liquids.
Wetted Materials : Vane and Body: Polyphenylene Sulfide (PPS); Pin and spring: 316 SS or Inconel®; Magnet: Ceramic 8.
Temperature Limit : 212°F (100°C).
Pressure Limit : 150 psig (10 bar).
Enclosure Rating : General purpose; WP/WP2 option is weatherproof.
Switch Type : SPDT snap switch; MV option: SPDT gold contact snap switch.
Electrical Rating : 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC. MV option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.
Electrical Connections : 18 AWG 18″ (460 mm) long.
Conduit Connection : 1/2″ male NPT, 1/2″ female NPT on WP and WP2.
Process Connection : 1″ male NPT.
Mounting Orientation : Actuation/deactuation flow rates are based on horizontal pipe run and are nominal values. Unit cannot be used with vertical down flow.
Set Point Adjustment : Vane is trimmable.
Weight : 4.5 oz (0.13 kg).
Agency Approvals : CE, cURus.

  • UL recognized as an industrial motor controller per UL standard 508, suitable for mounting in a protected environment
  • Magnetically actuated switching design gives superior performance with free-swinging vane which attracts a magnet within the switch body, actuating a snap switch with no bellows, springs, or seals to fail
  • Leak proof body and vane constructed of tough durable polyphenylene sulfide which has excellent chemical resistance
  • A full size trimmable vane is provided with molded-in graduations

Instruction Manuals: Dwyer_V8_Manual
Datasheet: Dwyer_Series-V8_Catalog

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