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RFA Type Electronic Flow Sensor

Brand: Gems Sensors, Inc

GEMS Sensors popularized the RotorFlow's paddlewheel design by combining high visibility rotors with solid-state electronics that are packaged into compact, panel mounting housings.

They provide accurate flow rate output with integral visual confirmation. 

RFA Types feature a 0 to 10 Vdc Analog output which is proportional to flow rate.
Features
  • 0 to 10 Vdc analog output which is proportional to flow rate

1 - 12 of 16 Part Numbers
230201
230201
  • Body Material - Polypropylene
  • Port Size - 1/2" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 4.0 to 20.0 (± 15.0%)
230202
230202
  • Body Material - Brass
  • Port Size - 1/4" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 0.5 to 5.0 (± 7.0%)
230203
230203
  • Body Material - Brass
  • Port Size - 1/2" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 4.0 to 20.0 (± 15.0%)
230204
230204
  • Body Material - Stainless Steel
  • Port Size - 9/16"-18 Male NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 0.5 to 5.0 (± 7.0%)
230205
230205
  • Body Material - Polypropylene
  • Port Size - 1/4" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 0.5 to 5.0 (± 7.0%)
230206
230206
  • Body Material - Polypropylene
  • Port Size - 1/4" NPT
  • Flow Range (GPM) - Low Range (Accuracy): 0.1 to 1.0 (± 7.0%)
230207
230207
  • Body Material - Polypropylene
  • Port Size - 1/2" NPT
  • Flow Range (GPM) - Low Range (Accuracy): 1.5 to 12.0 (± 7.0%)
230208
230208
  • Body Material - Stainless Steel
  • Port Size - 1/2" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 4.0 to 20.0 (± 15.0%)
230209
230209
  • Body Material - Brass
  • Port Size - 1/4" NPT
  • Flow Range (GPM) - Low Range (Accuracy): 0.1 to 1.0 (± 7.0%)
230210
230210
  • Body Material - Brass
  • Port Size - 1/2" NPT
  • Flow Range (GPM) - Low Range (Accuracy): 1.5 to 12.0 (± 7.0%)
230211
230211
  • Body Material - Stainless Steel
  • Port Size - 9/16"-18 Male NPT
  • Flow Range (GPM) - Low Range (Accuracy): 0.1 to 1.0 (± 7.0%)
230212
230212
  • Body Material - Brass
  • Port Size - 3/4" NPT
  • Flow Range (GPM) - Standard Range (Accuracy): 5.0 to 30.0 (± 10%)
1 - 12 of 16 Part Numbers

Specifications

Accuracy

  • ± 15 %
  • ± 7 %

Ambient Temperature Range

  • Electronic: 65° C (150° F)

Applications

  • Chemical Metering Equipment
  • Chillers & Heat Exchangers
  • Lasers & Welders
  • Semiconductor Process Tools
  • Water Injection Systems

Consumption

  • 25 mA - Max.

Electrical Connectors

  • 22 AWG PVC-Jacketed, 24" Cable

Enclosure Finish

  • Rotor: Black

Enclosure, Body Material

  • 316 Stainless Steel
  • Brass
  • Polypropylene

Flow Rate

  • 0.1 to 60 gpm

Input Power

  • 24 Vdc ± 10 %

Lens

  • Polysulfone

Materials of Construction

  • Low Flow Adaptor: Glass Reinforced Polypropylene
  • Rotor Pin: Ceramic
  • Rotor: PPS Composite

NPT Connection

  • 1" NPT Female
  • 1/2" NPT Female
  • 1/4" NPT Female
  • 3/4" NPT Female
  • 9/16"-18 NPT Female

O-Ring Material

  • Buna-N (Polypropylene Body)
  • Viton (Alloy Bodies)

Operating Pressure

  • Brass or Stainless Steel Body psig: 100 (kPa: 690, bar: 6.9) at 100° C (212° F) - Max.
  • Brass or Stainless Steel Body psig: 200 (kPa: 1,380, bar: 13.8) at 21° C (70° F)
  • Polypropylene Body psi: 40 (kPa: 280, bar: 2.8) at 82° C (180° F) - Max.
  • Polypropylene Body psig: 100 (kPa: 690, bar: 6.9) at 21° C (70° F)

Operating Temperature

  • Brass or Stainless Steel Body: -29° to 100° C (-20° to 212° F)
  • Polypropylene Body: -29° to 82° C (-20° to 180° F)

Output

  • Current Source Output: 10 mA - Max.
  • Output Signal: 0-10 Vdc at 1 mA - Max.

Pressure Range

  • bar: 2.758 to 13.79
  • kPa: 275.8 to 1379
  • psi: 40 to 200

Viscosity

  • 200 SSU

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

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