Gems RFS Type Electronic Flow Sensor

Last Updates: 15/02/2021

Gems Sensors & Controls 165078


Primary Material of ConstructionAlloy
Sensor TypeRotor Type
Adjustable Range1.5 – 20.0
Flow Setting (GPM)1.5 – 20.0
Body Material316 Stainless Steel
Port Size1/2″ NPT Female
Switch TypeSPDT (1A – 24VDC, 1/3 A – 110VAC)
Set Point Accuracy±5% (factory set)
Maximum Pressure (PSI)150 – 300
Minimum Temperature (°F)-20
Maximum Temperature212
Electrical Termination22 AWG, 24″-26″ PVC Leads
Set Point Differential15%
Wetted Materials316 Stainless Steel, Ceramic, PPS Composite, Polysulfone, Viton (Low Flow Adapter – Polyproylene)
ApprovalsUL Recognized, CE
Recommended Filtration150 micron


RotorFlow® Switches build an extra level of reliability and protection into your equipment. By principle of operation, the rotor cannot be deceived into indicating a positive flow situation when no flow actually exists. Once set to a desired actuation point, RotorFlow® will switch to a “no-flow” condition should the rotor stop for any reason. 

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