Iwaki MD0029 Front Casing Cover for WMD/MD-20RZ & 30RZ Pumps
When a pump casing cracks, warps, or freezes solid, the whole system grinds to a halt — and that's exactly the problem the Iwaki MD0029 was built to solve. This front casing is the wetted-end housing for Iwaki's WMD and MD Series magnetic drive pumps, specifically the 20RZ and 30RZ models. It's the component that contains the fluid path and seals against the impeller assembly, so when it fails, replacing it (rather than the entire pump) is usually the smarter, faster fix.
Built from GFRPP (glass-filled polypropylene), the MD0029 casing is engineered to handle the kind of aggressive chemical exposure that would eat through metal or standard plastic housings over time. Because it's part of a magnetic drive pump design, there's no mechanical shaft seal to wear out or leak, which makes this casing a key part of keeping the whole pump sealless and low-maintenance. The hose-style port connection keeps installation straightforward for technicians already familiar with Iwaki's WMD/MD platform.
For facilities running chemical transfer, filtration, or process fluid systems on Iwaki equipment, keeping a spare MD0029 on hand is a practical way to minimize downtime. It's a direct-fit replacement part designed to restore original performance without requiring a full pump swap.
Key Features
- Direct-fit replacement front casing for Iwaki WMD/MD Series pumps
- Constructed from durable GFRPP (glass-filled polypropylene)
- Compatible with sealless magnetic drive pump design
- Hose-style port connection for straightforward installation
- Resists corrosion from a wide range of process chemicals
Applications
- Chemical transfer and process fluid handling systems
- Industrial and laboratory pump maintenance
- Water and wastewater treatment applications
- OEM and MRO replacement part inventories
- Facilities operating Iwaki WMD-20RZ or MD-30RZ pump models
Specifications
- Part Number: MD0029
- Component Type: Front Casing / Cover
- Compatible Models: WMD/MD-20RZ, MD-30RZ
- Material: GFRPP (Glass-Filled Polypropylene)
- Port Size: Hose barb connection
- Pump Type: Magnetic drive (mag-drive) centrifugal pump
- Manufacturer: Iwaki Pumps
Frequently Asked Questions
Q: Can the MD0029 casing be installed without replacing the entire pump?
A: Yes, the MD0029 is designed as a standalone replacement casing, so it can be swapped onto an existing WMD/MD-20RZ or MD-30RZ pump without replacing the full unit.
Q: Is the MD0029 casing resistant to harsh chemicals?
A: Its GFRPP construction offers strong resistance to a wide range of corrosive fluids commonly used in chemical transfer and process applications, though compatibility should always be checked against the specific chemical being handled.
Q: Does this casing require any special tools for installation?
A: No special tools are typically required; installation follows the same procedure as standard Iwaki WMD/MD Series pump maintenance.
Q: Will the MD0029 work on pumps outside the WMD/MD-20RZ and 30RZ lineup?
A: It's specifically designed for the WMD/MD-20RZ and MD-30RZ models, so fitment on other Iwaki pump series isn't guaranteed.
Q: Why choose a magnetic drive pump casing over a traditional shaft-seal design?
A: Magnetic drive pumps eliminate the mechanical shaft seal, reducing leak points and maintenance needs, which makes components like the MD0029 casing part of a lower-maintenance, longer-lasting pump system.
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