Instruction Bulletin No.
157261
Rev. G
RFS-2500 Series
RotorFlow
®
Sensors
(For Additional Information, See Gems' "Level, Flow and Pressure Catalog)
RotorFlow units monitor dynamic fluid flow. The rotor reacts 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" of straight pipe on the inlet side is recommended.
Low Flow Applications
A low flow adapter is supplied with all RotorFlow units. It is used to produce accurate response at low flow rates. Press fit the
adapter as shown above, in the port selected for incoming flow. See Flow Range Chart below.
* With use of low flow
adapter supplied
** Straight thread with O-
ring seal
Standard
Low Flow*
Body
Material
Port Size
NPT
Input
Power
Part
Number
Range
Range
Adapter
Part Number
Polypropylene
.25"
12 VDC
155424
0.5 - 5.0
0.1 - 1.0
152147
24 VDC
155425
110 VAC
155876
.50"
12 VDC
155484
4.0 - 20.0
1.5 - 12.0
151832
24 VDC
155485
110 VAC
155886
Brass
.25"
12 VDC
156264
0.5 - 5.0
0.1 - 1.0
152147
24 VDC
156265
110 VAC
156266
.50"
12 VDC
156267
4.0 - 20.0
1.5 - 12.0
151832
24 VDC
156268
110 VAC
156269
.75"
12 VDC
180394
5.0 - 30.0
N/A
N/A
24 VDC
180395
110 VAC
180396
1.0"
24 VDC
181688
8.0 - 60.0
N/A
N/A
115 VAC
181689
316 Stainless
Steel
9/16”-18**
24 VDC
165073
0.5 - 5.0
0.1 to 1.0
152147
110 VAC
165074
.50”
24 VDC
165077
4.0 to 20.0
1.5 to 12.0
151832
110 VAC
165078
.75”
24 VDC
5.0 - 30.0
N/A
N/A
115 VAC
181692
1.0”
24 VDC
181693
8.0 - 60.0
N/A
N/A
115 VAC
181694
181691
Flow Range-GPM
