p
u
b
l
i
c
w
o
rk
s
Flow Meters
Poly Flow Meters
1/2-2 in. poly flow meter assemblies include:
-
Flow meter body with turbine, axle, and bearings
-
Hall effect sensor with three-pin weather pack connector
-
Hose barbs for inlet and outlet
-
Viton O-rings
-
Coupling nuts
3-4 in. poly flow meter assemblies include:
-
Flow meter body with turbine, axle, and bearings
-
Hall effect sensor with three-pin weather pack connector
-
Flanges with Viton O-rings for inlet and outlet
-
Flat flanges (no O-rings)
Use the following information to help you choose the right flow control valve for your equipment.
LIQUID FLOW RATE FORMULA
To calculate liquid flow rates (gpm) so you can pick the correct Flow Control Valve for your application, use the following formula:
Width x speed x application rate (gpa) x 0.00202 = gpm
Example: 60 ft. x 15 mph x 20 gpa x 0.00202 = 36.36 gpm
1/2" Poly Flowmeter - #PM00370018S1
3/4" Poly Flowmeter - #PM00370023S1
1" Poly Flowmeter - #PM00370030S1
1 1/2" Poly Flowmeter - #PM00370040S1
2" Poly Flowmeter - #PM00370048S1
3" Poly Flowmeter - #PM00370068S1
4" Poly Flowmeter - #PM00370088S1
Rotary Flow Meters
Rotary flow meters give you accurate flow rates at lower GPM and are typically used in the prewet systems. See below for sizes and flow rates:
-
Measure two flow ranges:
-
1/2" flow meter - 4 to 20 gallons per minute (GPM)
-
1/2" with low flow insert - 1.5 to 12 GPM
-
1/4" flow meter - 0.5 to 5 GPM
-
1/4" with low flow insert - 0.1 to 1 GPM
-
1/2" Flow meter - #46649-1171S1
1/4" Flow meter - #46649-1170S1
3/8" Turbine Flow Meter
The 3/8" flow meter gives you accurate feedback for low flow operations and is perfect for municipal operations that apply at low speeds or low rates.
Flow Rate: 0.26-4 GPM
Part # - 46649-0169S1