LMI J54D-257 Chemical Metering Pump

LMI Series J5 Metering Pump (12 VDC).
0.42 GPH @ 140 PSI, Liquid End 257, 12 Volt DC.

Dual Manual Control
Stroke frequency and stroke length are manually adjustable.


General Description
LMI Series J5 (12 VDC) chemical metering pumps shall be positive displacement, Liquifram type pumps that are UL and CUL approved. Output volume shall be adjustable while pumps are in operation from zero to maximum capacity.
Pump Controls
Adjustment shall be by means of readily accessible dial knobs, one for changing stroke length and the other for changing stroke frequency. Both knobs are to be located opposite the liquid handling end. Speed (stroking frequency) may be externally controlled for automatic systems.
Drive Assembly
The pump drive shall be totally enclosed with no exposed moving parts. Electronics shall be housed in chemical resistant enclosure at the rear of the pump for maximum protection against chemical spillage. Electrical power consumption shall not exceed 22 watts per hour under full speed and maximum pressure conditions. Pump weight shall not exceed 7.6 lbs (3.5 kg).
Pressure Relief
LMI 4-Function Valve is recommended to provide automatic pressure relief, anti-syphon protection, and priming aid.
Materials of Construction
See Specifications tab. Chemical metering pump housing shall be of chemically resistant glass fiber reinforced thermoplastic. All exposed fasteners shall be stainless steel. Valve seat and seal ring shall be renewable by replacing only the combination seat-seal ring or cartridge valve assembly.
Check Valve, Tubing, Connections
A total of 16 ft (4.8 m) of tubing shall be provided per pump complete with compressing connections (on models with tubing connections). A foot valve with integral one piece strainer shall be provided for the suction line (on non-high viscosity models with tubing connections), and an injection check/back pressure valve with 1/2" NPT male connection for the injection point (on models with tubing connections).