Iwaki L-MD-55RM Liquid End, Mag-Drive Pump Repair Kit
The Iwaki L-MD-55RM is the wet end assembly built for Iwaki America's MD-55 series magnetic drive pumps, giving owners a straightforward way to restore worn or damaged fluid-contact components without replacing the entire pump. Because the coupling between motor and impeller is magnetic rather than mechanical, there's no shaft seal to leak or wear out, which makes this liquid end especially useful in settings where downtime and fluid loss aren't acceptable.
Built from glass-filled polypropylene (GFRPP), the L-MD-55RM stands up to a wide range of aggressive chemicals, acids, and process fluids that would degrade metal components over time. The kit typically bundles the front casing, impeller, rear casing, and O-ring needed to bring a tired MD-55 pump back to reliable service, so technicians can swap the wear-prone parts in place rather than sourcing a full replacement unit. It's a practical option for facilities that already run Iwaki mag-drive pumps and want to keep maintenance costs and lead times down.
Whether the application involves industrial chemical transfer, water treatment dosing, cooling loop circulation, or general fluid handling where leak-free operation matters, this liquid end is designed to slot into existing MD-55 series housings with minimal fuss. It's a good fit for maintenance teams stocking spare parts for planned rebuilds as well as for anyone dealing with an unexpected wear-related failure.
Key Features
- Sealless magnetic-drive design eliminates shaft seal leak points
- GFRPP (glass-filled polypropylene) construction resists chemical attack and corrosion
- Compatible with Iwaki America MD-55 series magnetic drive pumps
- Includes front casing, impeller, rear casing, and O-ring
- Compact, lightweight wet end simplifies field replacement
- Supports continuous or intermittent duty in process environments
Applications
- Chemical transfer and metering in industrial processes
- Water and wastewater treatment dosing systems
- Cooling tower and recirculation loop service
- General acid, alkali, and solvent handling
- Filtration and reverse osmosis support systems
- OEM equipment requiring leak-free fluid transfer
- Laboratory and process recirculation setups
Specifications
- Model / Part Number: L-MD-55RM
- Manufacturer: Iwaki America
- Series: MD-55R / MD-55RM (Magnetic Drive)
- Wet end material: GFRPP (glass-filled polypropylene)
- Port size: 1 in. NPT inlet and outlet (typical for MD-55 series)
- Included components: front casing/impeller, rear casing, O-ring
- Part type: Liquid end (wet end repair kit)
- Compatible pump family: WMD/MD Series Magnetic Drive Pumps
Frequently Asked Questions
Q: What is included in the Iwaki L-MD-55RM liquid end kit?
The kit generally includes the front casing with impeller, the rear casing, and an O-ring, covering the main wear components of the pump's wet end.
Q: Is the L-MD-55RM compatible with all Iwaki MD pumps?
It's designed specifically for the MD-55 series magnetic drive pumps; always confirm your existing pump's model number matches before ordering to ensure a proper fit.
Q: Why choose a magnetic drive liquid end instead of a sealed pump?
Magnetic drive designs remove the mechanical shaft seal entirely, which reduces the risk of leaks and lowers long-term maintenance needs, especially with aggressive or hazardous fluids.
Q: Can this liquid end handle corrosive chemicals?
Yes, the GFRPP construction is chosen specifically for resistance to a broad range of acids, alkalis, and industrial chemicals commonly found in process environments.
Q: How do I know if I need this part instead of a full pump replacement?
If the motor and magnetic drive assembly are still functioning properly and only the wet end components show wear or damage, replacing just the liquid end is typically the more cost-effective option.
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