LK Series
The Iwaki LK Series metering pumps are motor-driven, mechanically-actuated diaphragm metering pumps. This larger Series can achieve outputs up to 856 GPH (3240 l/h) and maximum pressures of 220 PSI (1.5 MPa). The LK Series is ideal for large chemical feed applications in a wide range of fields, including water treatment, chemical process, agriculture, mining, and paper. The LK series is Iwaki’s largest metering pump product.
High Performance & Versatile Design
The LK series has a discharge accuracy (repeatability) that is within ±2% FS. Reliability has been enhanced with the improvement in the linearity of the stroke and the discharge ratio of each stroke.
Drive
The heart of the LK is the dual-cam drive with a built-in worm gear type speed reducer. This compact
& rigid mechanism, provides maximum wear resistance in continuous operation over long periods of time.
The LK-A, LK-B, and LK-C series pump are designed to be fit with IEC general-purpose, vertically mounted TEFC outdoor-use motors, providing different voltage and enclosure options, including VFD-ready and explosion-proof designs.
LKN Series
In a class by itself – the LKN 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 LKN Series is ideal for chemical feed applications in a wide range of fields, including water treatment, chemical process, agriculture, mining, and paper. The LKN is the workhorse of the Iwaki metering pump products.
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.
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