Iwaki MX-250CV6 Mag-Drive Pump End, Less Motor, Polypropylene Construction
If you're running a chemical process line and you've been putting off replacing a worn pump seal, the Iwaki MX-250CV6 solves that problem by removing the seal from the equation entirely. This is a magnetic drive centrifugal pump end, built from glass-fiber reinforced polypropylene, designed to move corrosive or aggressive liquids without a shaft seal that can wear out, leak, or fail under pressure. Because the drive is magnetic rather than mechanical, the moving parts are cooled and lubricated by the fluid itself, which means fewer maintenance interruptions and a lower risk of chemical leakage into the surrounding environment.
This unit ships as a pump end only, without a motor, so it's built to pair with a standard 1/2 HP, 3450 RPM, 56C NEMA frame motor you may already have on hand or plan to source separately. That makes it a practical choice for facilities standardizing on a common motor platform across multiple pump stations, or for anyone replacing a worn-out pump end without needing to swap the whole assembly. With ports sized for 1-inch NPT connections on both suction and discharge, it fits neatly into chemical transfer, recirculation, scrubber, and plating lines where consistent flow and corrosion resistance matter more than raw horsepower.
Facilities in chemical processing, water treatment, surface finishing, and industrial washing operations tend to gravitate toward this pump because it's engineered to handle the wear and tear of continuous duty without the headaches that come with traditional sealed pumps. It's not a pump you'll notice much once it's installed correctly — which, for a piece of process equipment, is exactly the point.
Key Features
- Seal-less magnetic drive design eliminates shaft seal leak points
- GFRPP (glass fiber reinforced polypropylene) casing and impeller for corrosion resistance
- Alumina ceramic spindle with high-density carbon bearing
- FKM (Viton) O-ring construction
- Self-cooling design with heat dispersion holes in the impeller
- Pump end only, compatible with 1/2 HP, 3450 RPM, 56C frame motors
Applications
- Chemical recirculation and chemical transfer systems
- Scrubber system fluid circulation
- Plating and surface treatment processing
- Filtering, spraying, and washing operations
- Chemical blending and etching lines
Specifications
- Port Size: 1" NPT (male threaded inlet and outlet)
- Flow Rate: Up to 40 GPM at zero pressure
- Minimum Flow: 2.5 GPM
- Pressure/Head: Up to 53 feet of head at zero flow
- Motor Requirement: 1/2 HP, 3450 RPM, 56C NEMA frame
- Casing/Impeller Material: GFRPP (Glass Fiber Reinforced Polypropylene)
- Bearing Material: High-density carbon
- Spindle Material: Alumina ceramic
- Seal Type: None (seal-less mag-drive), FKM body O-ring
Frequently Asked Questions
Q: Does the Iwaki MX-250CV6 come with a motor included?
A: No, this pump end ships without a motor. It requires a separately sourced 1/2 HP, 3450 RPM, 56C NEMA frame motor to operate.
Q: Is the MX-250CV6 self-priming?
A: No, the pump is not self-priming and must be primed with the pumped liquid before startup to avoid dry-run damage.
Q: What kind of liquids is this pump designed to handle?
A: It's designed for corrosive and chemically aggressive liquids commonly found in chemical transfer, recirculation, scrubber, and plating applications, thanks to its GFRPP construction and FKM O-rings.
Q: How often can the pump be started and stopped?
A: Frequent cycling should be limited to no more than six start/stop cycles per hour to avoid premature wear or damage.
Q: What happens if the pump runs without liquid?
A: Running the pump dry will cause the rotating parts to seize and wear quickly, since the pumped liquid is what lubricates and cools the internal components.
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