Starting at $258.00
  • Usually ships in 2-3 weeks



  • Accurate Flow Rate Indication with Integral Visual Confirmation
  • Flow Ranges From 0.1 to 60.0 GPM
  • Body Material: Brass, 316 Stainless Steel or Polypropylene
  • Maximum Operating Pressure
    • Brass or Stainless Steel Body: 200 PSIG @ 70°F
    • Polypropylene Body: 100 PSIG @ 70°F
  • Operating Temperature
    • Brass or Stainless Steel Body: -20 to 212°F
    • Polypropylene Body: -20 to 180°F
  • Maximum Viscosity: 200 SSU
  • Input Power: 24 VDC, ±10%
  • Output Signal: 0-10 VDC Analog Signal @ 1mA, Max.
  • Current Consumption: 25 mA, Max.


The Gems RFA series is a paddlewheel designed flow meter that combines high visibility rotors with solid-state electronics. Packaged into compact, panel mounting housings, the RFA series provides accurate flow rate output with integral visual confirmation and an unprecedented price/performance ratio.

The RFA series has port sizes from 1/4" to 1" NPTF for liquid flow rates from 0.10 to 60 GPM. Featuring rugged brass, stainless steel or polypropylene construction, the RFA utilizes a simple and reliable design suitable for operating temperatures to 212°F and line pressures to 200 psig. The meter features 0 to 10 VDC analog output.

Applications for the Gems RFA Series flow switch:

  • Water Purification/Dispensing Systems
  • Chemical Metering Equipment
  • Lasers and Welders
  • Water Injection Systems
  • Semiconductor Processing Equipment
  • Chillers and Heat Exchangers