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Flow Sensor, Pulsed Output, RFO Series, 1.5 to 20 gpm, 15 %, NPT, 12.7 mm


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Manufacturer Part No:
Newark Part No.:
Product Range
RFO Series
Technical Datasheet:
155481   Datasheet
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Product Range Selector (RFO Series)

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Product Overview

The 155481 is a flow rate monitoring RFO Type Sensor with polypropylene body. The RFO series sensor popularized the RotorFlows paddlewheel design by combining high visibility rotors with solid-state electronics that are packaged into compact and panel mounting housings. It provides accurate flow rate output with integral visual confirmation. RFO Types feature a VDC pulsed output.
  • Ceramic rotor pin
  • Black PPS composite rotor
  • Polysulfone lens
  • Glass reinforced polypropylene low flow adaptor
  • 1/2" NPT female port size
  • 150micron Recommended filtration


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1.5GPM (US)

20GPM (US)






RFO Series

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Technical Docs (1)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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