Iwaki L-MD-30RZT Magnetic Drive Liquid End Kit
The Iwaki L-MD-30RZT is a complete liquid end replacement designed for pump owners who want to restore full performance without buying an entirely new unit. It bundles the front casing, rear casing, impeller, and O-ring into a single kit, giving technicians everything needed to rebuild the wet end of a magnetic drive pump in one straightforward service. Because the design is interchangeable across both MD and WMD series pumps, it's a practical option for facilities running either configuration side by side.
What makes this part appealing beyond marine and industrial fluid handling is its versatility. Magnetic drive pumps built around this liquid end show up in laboratory equipment, laser cooling loops, chiller systems, aquarium and aquaculture setups, chemical dosing lines, and general fluid transfer applications where a sealless design is preferred to avoid leaks. The glass-fiber reinforced polypropylene construction resists a wide range of chemicals, and the sealless magnetic coupling eliminates the wear points that typically cause mechanical seal failures in conventional centrifugal pumps.
Replacing a worn liquid end rather than the whole pump extends the life of the motor and drive assembly while keeping downtime short. Technicians familiar with the MD/WMD platform will find the swap straightforward, and the kit's consistent fit across model variants reduces the guesswork often involved in sourcing OEM parts for older units still in service.
Key Features
- Complete liquid end kit: front casing, rear casing, impeller, and O-ring included
- Compatible with both MD and WMD series Iwaki pumps
- Sealless magnetic drive design eliminates mechanical shaft seals
- Glass-fiber reinforced polypropylene (GFR-PP) casing construction
- High-head impeller design for improved flow performance
- PPS bearing with alumina ceramic thrust ring and spindle
Applications
- Chemical transfer and dosing systems
- Laboratory and analytical equipment
- Laser and chiller cooling loops
- Aquaculture and aquarium fluid circulation
- General industrial fluid handling
- Water treatment and filtration systems
Specifications
- Part Number: L-MD-30RZT
- Port Size: 3/4" NPT
- Material: GFR-PP casing
- Bearing: PPS with alumina ceramic thrust ring and spindle
- Sealing: Static O-ring
- Compatibility: MD Series and WMD Series pumps
- Max Liquid Temperature: 80°C
Frequently Asked Questions
Q: Can the L-MD-30RZT liquid end be installed without replacing the motor?
A: Yes, this kit replaces only the wet end components, so the existing motor and drive assembly can remain in place.
Q: Does this liquid end work on both 115V and 220V pump models?
A: Yes, the liquid end is independent of motor voltage, since voltage only affects the drive unit, not the wetted parts.
Q: What chemicals is the GFR-PP casing resistant to?
A: GFR-PP offers broad chemical resistance suitable for many acids, bases, and common industrial fluids, though compatibility should be confirmed for specific chemicals before use.
Q: Is any special tooling required to install this liquid end?
A: No special tooling is typically required; basic hand tools are sufficient for removing the casing screws and swapping the impeller and O-ring.
Q: How do I know if my pump needs a liquid end replacement instead of a full pump replacement?
A: Signs like reduced flow, unusual noise, or visible wear on the casing or impeller usually indicate the liquid end alone needs servicing, while motor issues would point to a different repair.
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