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Liquid Flow Switch

RCM general purpose Flo-Gard II flow switches (liquid) reed switches make or break contacts by detecting the position of a magnet permanently attached to the bellow. Our reed switches can also be ordered for use in hazardous location (Option IS),  when fitted with LED's (Option LED) it provides viewing at a glance when flow rate goes below or above the set point  and makes field calibration easy

Technical Specs

Model Flo-Gard II
Fixed / Portable Fixed
Tolerance Maximum temperature: 100 deg C
Maximum pressure: 28 bar
Accuracy ± 3% FS
Remarks Enclosure Rating: NEMA 4X / IP66

Electrical Rating:

Ambient Temp.: 120ºF (50ºC)

Setability: ± 5% F.S.

Hysteresis: ± 13% F.S.

Contact Rating:  10 Watts
175 Vdc max.
125 Vac max. 

Current: 350 mA max. switching

Hazardous Location Specifications: (Option IS & LED)

Contact Rating:
Vmax = 28V, Imax = 110mA, Pmax = 1.2W, Ci = 0uF, Li = 0uH
CSA / NRTLc: AEx ia IIC: Class I, Division I, Groups A, B, C & D
Class II, Division I, Groups E, F & G
KEMA: Ex ia IIC: Zone 0, II 1G T4 0°C ≤ Ta ≤ 50°C ATEX EC Type Examination

Protect from freezing liquid 

Data sheet


See also
Liquid Flow Switch
RCM general purpose Flo-Gard II flow switches (liquid) reed switches make or break contacts by detecting the position of a magnet permanently attached to the bellow. Our reed switches can also be or.....
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