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Variable Area Flow Meter (Rotameter)

  • The Truflo Rotoflo Series is designed to measure and provide simple flow indication. The Rotoflo Series is an excellent choice water or mildly corrosive liquid media. All Truflo products provide high quality and state-of-the-art technology.

Key Features

  • Good Accuracy
  • Excellent Low-Cost Flow Measurement
  • Quick Visual Indication of Flow/No Flow
  • Easily Installation
  • True Union Design
  • Relay Outputs

Fields of Application:

  • Chemical Processing
  • Water and Wastewater Monitoring
  • Metal Recovery
  • Landfill Leachate
  • Commercial Pools, Spas, and Aquariums
  • HVAC
  • Scrubber control
  • Neutralization Systems
  • Industrial Water Distribution


RotoFlo RFA Series - Plastic Rotameter
  • Flow ranges from 0.02 – 881 GPM
  • Accuracy ±4%
  • Low-Pressure Drop
  • Optional Limit Switches

RotoFlo-Datasheet.pdf

RotoFlo RFA Series - Plastic Rotameter
RotoFlo RFP Series - Plastic Rotameter


  • Max working pressure -150 PSI
  • Accuracy: ± 4%
  • O-ring: Viton® (EPDM is optional)
  • Injection Molded Chemical Resistant

RotoFlo-Datasheet.pdf

RotoFlo RFP Series - Plastic Rotameter