Iwaki MD-70RLZT-115 High-Pressure Magnetic Drive Pump
If you need a pump that can handle demanding, corrosive, or particulate-sensitive fluids without leaking, the Iwaki MD-70RLZT-115 is built for exactly that job. This sealless magnetic drive centrifugal pump pairs a high-head CFR-PP impeller with a durable GFR-PP polypropylene casing, giving it the chemical resistance and structural strength needed for continuous duty in demanding process environments. Because the motor and wet end are magnetically coupled rather than connected through a traditional shaft seal, there's no dynamic seal to wear out or fail, which means less maintenance and virtually no risk of leakage over the life of the pump.
Powering the unit is a 2/7 HP, 115VAC, single-phase TEFC motor that spins at 3400 RPM, delivering up to 11.4 GPM through 3/4" NPT inlet and outlet connections. Internally, the pump relies on a PPS bearing along with an alumina ceramic thrust ring and spindle, materials chosen specifically to resist wear and maintain smooth rotation even under sustained pressure. It's a compact footprint, but it's engineered to keep performing where lesser pumps would break down.
While many customers use this model for laser systems, chillers, and blood analyzer equipment, its non-metallic, chemically resistant construction makes it just as suitable for a wide range of industrial, laboratory, and process-fluid transfer applications outside those fields. Anywhere a compact, reliable, seal-free pump is needed to move liquids without contamination or leakage, the MD-70RLZT-115 is a dependable choice.
Key Features
- Sealless magnetic drive design eliminates dynamic shaft seals and leak points
- High-head CFR-PP (carbon-fiber reinforced polypropylene) impeller for elevated pressure performance
- GFR-PP (glass-fiber reinforced polypropylene) pump casing for chemical resistance
- PPS bearing with alumina ceramic thrust ring and spindle for long service life
- TEFC (Totally Enclosed Fan Cooled) motor for enclosed, low-maintenance operation
- Rotating spindle design supports stable, consistent operation
- Internal cooling circuit helps manage bearing temperature during operation
Applications
- Laser system cooling and fluid circulation
- Chiller and recirculation systems
- Blood analyzer and laboratory instrumentation
- Chemical transfer and process fluid handling
- Coolant recirculation in industrial equipment
- General corrosive liquid transfer where metallic pumps are unsuitable
Specifications
- Model / Part Number: MD-70RLZT-115
- Pump Type: Magnetic drive (mag-drive) centrifugal pump
- Port Size: 3/4" NPT inlet and outlet
- Motor: 2/7 HP, 115VAC, 1 Phase, TEFC
- Motor Speed: 3400 RPM
- Frequency: 50/60 Hz
- Max Flow Rate: 11.4 GPM
- Casing Material: GFR-PP (glass-fiber reinforced polypropylene)
- Impeller Material: CFR-PP (carbon-fiber reinforced polypropylene), high-head type
- Bearing: PPS with alumina ceramic thrust ring and spindle
- Specific Gravity Limit: 1.0 S.G.
- Priming: Not self-priming; must not be run dry
Frequently Asked Questions
Q: Can the Iwaki MD-70RLZT-115 run dry without damage?
A: No. This pump is not self-priming, and operating it without liquid present can damage the internal bearing and spindle components, so it should always be run with fluid in the system.
Q: What types of liquids should not be used with this pump?
A: Because the pump relies on magnetic coupling, liquids containing iron, nickel, or other magnetic particulates should be avoided, as they can interfere with the magnetic drive mechanism.
Q: Does this pump require routine seal maintenance like a traditional centrifugal pump?
A: No. Since the MD-70RLZT-115 uses a magnetic drive instead of a mechanical shaft seal, there is no dynamic seal to replace, which significantly reduces routine maintenance needs.
Q: Is this pump suitable for continuous, 24/7 operation?
A: Yes. The TEFC motor, ceramic thrust components, and internal cooling circuit are designed to support sustained, continuous-duty operation in demanding applications.
Q: What voltage and phase does the MD-70RLZT-115 require?
A: It operates on 115VAC, single-phase power at 50/60 Hz, making it compatible with standard single-phase electrical setups in North America and similar markets.
CLRMarine
