Iwaki L-MD-70RZT Liquid End Mag-Drive Pump Kit
The Iwaki L-MD-70RZT is a complete liquid end kit built for the MD-70RZT series of seal-less magnetic drive pumps. Instead of replacing an entire pump and motor assembly when the wet end wears out, this kit gives you the front casing, rear casing, impeller, and O-ring needed to rebuild the fluid-handling side of the pump. It's a practical option for facilities that want to extend the working life of equipment already in service without paying for a full pump replacement.
Because the MD-70RZT pump family relies on magnetic coupling rather than a mechanical shaft seal, the liquid end plays an outsized role in reliability. The glass-fiber reinforced polypropylene casings resist a wide range of corrosive and chemically aggressive liquids, while the carbon-fiber reinforced polypropylene high-head impeller and alumina ceramic spindle are engineered to handle the loads and wear that come with continuous operation. This construction makes the L-MD-70RZT kit well suited to chemical processing, industrial fluid transfer, and general process pumping environments where leak-free, seal-less operation matters.
Ordering this kit as a maintenance part lets technicians restore pump performance quickly, using components matched to the original engineering specifications of the MD-70RZT pump. It's a straightforward way to keep uptime high while avoiding the cost and lead time of a full pump replacement.
Key Features
- Complete liquid end rebuild kit: front casing, rear casing, impeller, and O-ring
- GFRPP (glass-fiber reinforced polypropylene) front and rear casing construction
- CFRPP (carbon-fiber reinforced polypropylene) high-head impeller
- Alumina ceramic spindle and thrust ring for wear resistance
- PPS bearing material for durability under continuous operation
- FKM or EPDM O-ring for chemical compatibility
- Seal-less magnetic drive design eliminates mechanical shaft seals
- Engineered as a direct-fit replacement for the Iwaki MD-70RZT pump series
Applications
- Chemical transfer and recirculation systems
- Industrial process fluid handling
- Corrosive liquid pumping where seal-less operation is required
- Scrubber and filtration system fluid circulation
- General plant maintenance and pump rebuild programs
Specifications
- Model: L-MD-70RZT
- Type: Liquid end kit for magnetic drive centrifugal pump
- Casing material: GFRPP
- Impeller material: CFRPP (high-head design)
- Bearing material: PPS
- Spindle/thrust ring material: Alumina ceramic
- O-ring material: FKM or EPDM
- Port size: 3/4 inch NPT (compatible with MD-70RZT pump connections)
- Compatible pump series: Iwaki MD-70RZT / MD-70RLZT
Frequently Asked Questions
Q: Is the L-MD-70RZT a complete pump or a repair kit?
A: It is a liquid end repair kit, meaning it includes the front casing, rear casing, impeller, and O-ring rather than a full pump and motor assembly.
Q: What pumps is this liquid end compatible with?
A: It is designed as a direct-fit replacement for the Iwaki MD-70RZT and MD-70RLZT mag-drive centrifugal pump series.
Q: Why choose a GFRPP and CFRPP construction for this liquid end?
A: These reinforced polypropylene materials offer strong chemical resistance and mechanical durability, making them suitable for demanding industrial and chemical transfer applications.
Q: Does replacing the liquid end restore full pump performance?
A: Yes, since the liquid end contains the primary wear components (casing, impeller, spindle-related O-ring interface), replacing it typically restores the pump's original flow and head performance.
Q: Can this kit be installed without replacing the motor?
A: Yes, the liquid end kit is designed to be installed on the existing motor and drive assembly of a compatible MD-70RZT pump.
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