RFO Type Electronic Flow Sensor, 1" NPT Female
RFO Type Electronic Flow Sensors combine high visibility rotors with solid-state electronics that are packaged into compact, panel mounting housings. RFO Types are ideal for a range of applications including water purification/dispensing systems, lasers and welders, semiconductor processing equipment and chillers and heat exchangers.
Typical Applications
- Water Purification/Dispensing Systems
- Chemical Metering Equipment
- Lasers and Welders
- Water Injection Systems
- Semiconductor Processing Equipment
- Chillers and Heat Exchangers
Easy Installation and Maintenance
A proper installation will enhance RotorFlow sensor performance. Install using standard pipe fitting tools; horizontal fluid lines are recommended. For further installation and maintenance recommendations, refer to one of the following instruction bulletins: RFO Types–Part Number 157258; RFI Types–Part Number 157259; RFS Types–Part Number 157261.
Since their function is to monitor dynamic fluid flow, naturally the rotor will react to turbulence, pulsation, entrained air, and other flow anomalies induced in the flow stream by other process hardware. For optimum performance, install RotorFlow units where nominal flow conditions exist with ports located at the top. Incoming flow may be placed to either port; a minimum of 8 inches (20 cm) of straight pipe on the inlet side is required. When operating in the low flow range, the supplied Low Flow Adapter must be installed in the incoming port.
Except for straight-thread versions, RotorFlow sensors connect to piping via NPT mating thread forms.. The use of an appropriate thread sealant is necessary to assure a leak-tight connection. Permatex “No More Leaks ® ” or 2 wraps of Teflon ® tape are the only sealants recommended for GEMS flow sensors. Straight-thread versions require an O-ring for sealing.
150-micron filtration is recommended. However, should foreign particles enter the RotorFlow sensor, accumulation is easily cleared by removing the lens from the body. The lens is removed by turning its 7/16" hex center hub 45° counter-clockwise with a standard socket wrench. To reinstall the lens, simply reverse the process. Pressure must be relieved from the system prior to sensor clean-out. O-rings should be lubricated prior to re-assembly.