Iwaki LKN45A-S6 Mechanical Diaphragm Metering Pump
Precision chemical dosing calls for a pump that can hold its accuracy shift after shift, and the Iwaki LKN45A-S6 was built with exactly that consistency in mind. This mechanically actuated diaphragm metering pump combines a rugged 316 stainless steel pump head with a PTFE and EPDM diaphragm, giving it the chemical resistance needed for solvent duty service across a wide range of industries. At the core of the design is a compact dual-cam drive paired with a worm gear reducer, a mechanism that transfers motor power to the diaphragm with minimal wear even during long, continuous run times.
What makes this pump practical for real-world operations is its flexibility. Operators can fine-tune output from 10 to 100 percent using a lockable micrometer stroke adjustment dial, allowing feed rates to be dialed in with confidence rather than guesswork. Paired with a 1/3 horsepower, 1725 RPM, single-phase TEFC motor available in 115/230 volts, the LKN45A-S6 stays compact and vertically oriented to save valuable floor and skid space, while roller bearings and oil bath lubrication keep internal wear to a minimum.
Because the LKN45A-S6 isn't limited to any single industry, it shows up wherever accurate, low-volume chemical feed matters. Water treatment plants, chemical processing lines, agricultural operations, mining facilities, and pulp and paper mills all rely on this style of pump to introduce acids, bases, solvents, and other process chemicals in carefully controlled doses. Its 1/2 inch NPT male suction and discharge ports make installation straightforward, and its Hastelloy C276 ball valves with 316 stainless steel valve seats stand up to aggressive media without sacrificing long-term reliability.
Key Features
- Mechanically actuated diaphragm design with dual-cam drive and worm gear reducer
- Lockable micrometer stroke adjustment, tunable from 10% to 100%
- 316 stainless steel pump head built for solvent duty service
- PTFE and EPDM diaphragm material for broad chemical compatibility
- Hastelloy C276 ball valves with 316 stainless steel valve seats and PTFE valve gaskets
- Roller bearings with oil bath lubrication for extended service life
- Vertically mounted TEFC motor for compact footprint and space savings
Applications
- Water treatment chemical feed and disinfection dosing
- Chemical processing and solvent transfer
- Agricultural chemical application systems
- Mining process chemical injection
- Pulp and paper production chemical dosing
- General industrial precision chemical metering
Specifications
- Maximum capacity: 15.9 GPH (50 L/h)
- Maximum discharge pressure: 225 PSI
- Motor: 1/3 HP, 1725 RPM, 115/230V single phase, TEFC
- Suction port: 1/2 inch NPT male
- Discharge port: 1/2 inch NPT male
- Pump head material: 316 stainless steel
- Diaphragm material: PTFE and EPDM
- Valve material: Hastelloy C276 ball, 316 stainless steel seat, PTFE gasket
- Stroke adjustment range: 10% to 100%
- Drive mechanism: Dual-cam system with worm gear reducer
FAQ Section
Q: What is the maximum flow rate of the Iwaki LKN45A-S6 metering pump?
A: The LKN45A-S6 delivers a maximum output of 15.9 GPH (50 L/h) at pressures up to 225 PSI, making it suitable for precise low-to-moderate volume chemical dosing.
Q: What chemicals is the LKN45A-S6 pump compatible with?
A: With a 316 stainless steel pump head, PTFE/EPDM diaphragm, and Hastelloy C276 valve components, this pump is well suited for solvents, acids, and a variety of aggressive process chemicals commonly found in industrial feed applications.
Q: Can the stroke rate be adjusted on this pump?
A: Yes, the LKN45A-S6 features a lockable micrometer stroke adjustment mechanism that allows output to be fine-tuned from 10% to 100% of capacity.
Q: What voltage does the LKN45A-S6 motor require?
A: This model is equipped with a 1/3 HP, single-phase TEFC motor available in 115/230 volt configurations, running at 1725 RPM.
Q: Is this pump suitable for continuous industrial operation?
A: Yes, its dual-cam drive with worm gear reducer, combined with roller bearings and oil bath lubrication, is engineered for reliable, continuous-duty performance in demanding industrial settings.
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