LK Series | Motor-driven metering pumps0 pages

An Iwaki America Company
LK Series | Motor-driven metering pumps
Overview
The LK Series metering pump is the largest in the high performance
line of pumps from Walchem Corporation. The LK is a motor-driven,
mechanically actuated diaphragm metering pump with a maximum capacity of 114 GPH (432 l/h) and a maximum pressure of 225 PSI (1.5
MPa).
The heart of the LK is a compact and very reliable dual-cam system
drive and worm gear reducer. Roller bearings and oil bath lubrication
ensure outstanding durability and wear resistance in continuous operation.
The LK Series is ideal for chemical feed applications in a wide range of
fields, including water treatment, chemical process, agriculture, mining
and paper.
Summary of Key Benefits
Liquid Ends
Drive from the gear reduction unit is directly transferred to the diaphragm. This design is economical, yet retains a high degree of versatility. Liquid ends are available in PVC, PVDF and 316
SS for handling acids, bases, solvents, polymers and slurries.
Stroke Adjustment
Accurate and reliable stroke setting is accomplished with a micrometer dial of the springback stroke
adjustment mechanism. This lockable mechanism is adjustable from 10 to 100%.
Drive
The LK utilizes a dual-cam system drive with a built-in worm gear type speed reducer. The aluminum bronze worm gear and the tapered roller bearing provide efficient transmission of motor power
to the pump. This compact and rigid mechanism provides maximum wear resistance in continuous
operation over long periods of time.
Motors
All of the standard models employ totally enclosed fan-cooled motors which are vertically mounted
to save space. A variety of motor options are available, including explosion-proof and DC variable
speed motors for external control by a 4-20 mA input signal.