LMI P0 Economy Chemical Metering Pump | Standard & Auto Degassing Models


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When they're gone - they're gone. Last chance to stock up on the popular Series P0 chemical dosing pump models, which are being upgraded to the new PD Series of chemical metering pumps.

The PO Series of pumps are designed for economical chemical injection and are chemically compatible with all standard water treatment chemicals including chlorine. LMI Series P0 chemical metering pumps have a single dial for manual stroke adjustment and operate at a fixed speed.

The clear LMI see-thru acrylic pump head provides a clear view of the diaphragm operation and chemical flow through the pump.

LMI Series P0 chemical feed pumps come complete with instructions, foot valve, ceramic weight, injection valve, four function discharge valve and chemical tubing. Pumps are 120VAC. LMI Series P0 chemical dosing pumps are NSF & cUL approved.
Note: LMI Degassing Pump Models ending in HI are specially designed to handle off gassing chemicals such as chlorine that can cause air locking. They have an additional valve on the pump head that automatically returns a small amount of chemical and chemical gas to the solution tank with each pump stroke.


LMI Pump Model Maximum Gallons Per Hour / Day
Maximum Pressure (PSI) Tubing Size
P021-D50HI - Degassing 0.13 gph / 3.1 gpd
150 1/4" OD
P021-450SI Standard 0.21 gph / 5.0 gpd 150 1/4" OD
P031-D90HI - Degassing
0.33 gph / 7.9 gpd
110 3/8" OD
P031-490SI Standard 0.42 gph / 10.0 gpd 110 3/8" OD
P041-D50HI - Degassing
0.42 gph / 10.0 gpd
250 1/4" OD
P041-450SI Standard 0.58 gph / 13.9 gpd 250 1/4" OD
P051-D90HI - Degassing
0.85 gph / 20.4 gpd
110 3/8" OD
P051-490SI Standard 1.0 gph / 24 gpd 110 3/8" OD
P061-D60HI- Degassing
1.8 gph / 43.2 gpd
50 3/8" OD
P061-460SI Standard 2.0 gph / 48 gpd 50 3/8" OD


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