Metering Pump Variable Flow Rate Application Calculator
To use these calculators simply enter the parameters and then move your mouse.
Units of Measure:

Inputs:

Flow Rate (LPM)

Dosage (mg/L)

Water Meter LPC

Solution Strength (mg/L)

Outputs:

Chemical Inj. Rate (LPM)

Contacts per minute(CPM) Do Not Exceed 125!

Pump Output (LPH) (oversize the pump to allow for adjustment)

* Note: Contacts per minute from water meter should NOT exceed 125.

Contacting Head Water Meters:

Code Ratings
MTR2_ _ 3/4" NPT multi-jet flowmeter, .22-22 GPM
MTR3_ _ 1" NPT multi-jet flowmeter, .44-52 GPM
MTR4_ _ 1.5" NPT multi-jet flowmeter, .88-88 GPM
MTR5_ _ 2" NPT multi-jet flowmeter, 2-132 GPM
MTR6_ _ 3" Flanged turbine flowmeter, 440 GPM
MTR7_ _ 4" Flanged turbine flowmeter, 660 GPM
MTR8_ _ 6" Flanged turbine flowmeter, 1650 GPM
    Gallons Per Contact(GPC)
Code Ratings .75" 1" 1.5" 2" 3" 4" 6"
_ _ _ _01 0.1 GPC X
_ _ _ _02 0.25 GPC X X
_ _ _ _03 0.5 GPC X X
_ _ _ _04 1 GPC X X X X
_ _ _ _06 5 GPC X X X X
_ _ _ _07 10 GPC X X X X
_ _ _ _09 50 GPC X X X X
_ _ _ _10 100 GPC X X X X X X X
_ _ _ _13 1.000 GPC X X X
IMPORTANT: Sizes up to 2" have male Epoxy Coated NPT Bronze Bodies with unions, rated for 150 psi max., 105F max. 3", 4", 6" meters have Epoxy Coated Ductile Iron Flanged Bodies, rated for 200 psi max, 105F max.