Iwaki MD-20RT-220 Magnetic Drive Pump
The Iwaki MD-20RT-220 is a compact, seal-less magnetic drive centrifugal pump built for anyone who needs reliable fluid handling without the maintenance headaches of a traditional shaft-seal design. Its polypropylene construction stands up well to a wide range of aggressive chemicals, making it a practical choice for laboratories, water treatment systems, plating operations, chemical processing lines, and general industrial fluid transfer where corrosion resistance really matters.
At the heart of this pump is a magnetic coupling system that eliminates the direct mechanical connection between the motor shaft and the impeller. That means no packing, no mechanical seals, and far less risk of leaks over the life of the pump. A dual bearing system and a dynamically balanced drive magnet keep vibration low and extend service life, while the totally enclosed fan-cooled (TEFC) motor runs quietly and includes built-in thermal protection with automatic restart for added peace of mind.
Whether it's moving corrosive fluids in a chemical plant, supporting a recirculation loop, or handling high-purity liquids in a controlled environment, the MD-20RT-220 delivers dependable, low-maintenance performance in a compact footprint, running on 220V power for facilities that need that voltage configuration.
Key Features
- Seal-less magnetic drive design eliminates mechanical shaft seals and packing
- Polypropylene (GFRPP) construction resists a broad range of corrosive chemicals
- Dual bearing system for extended service life
- Dynamically balanced drive magnet reduces unbalanced motor loads
- Rotating spindle design reduces friction and heat buildup
- Totally enclosed fan-cooled (TEFC) motor for quiet, efficient operation
- Built-in thermal protection with automatic restart
- Compact, low-noise footprint suitable for space-limited installations
Applications
- Chemical processing and transfer
- Water and wastewater treatment systems
- Plating and surface finishing operations
- Laboratory and high-purity fluid handling
- Industrial recirculation loops
- General corrosive liquid transfer applications
Specifications
- Model: MD-20RT-220
- Pump Type: Magnetic drive centrifugal pump
- Construction Material: GFRPP Polypropylene
- Motor Output: 1/38 HP
- Voltage: 220V AC (220/240V, 50/60Hz), 1 Phase
- Motor Speed: 3,100 RPM
- Current Draw: 0.48 Amps
- Maximum Flow: 8.2 GPM
- Maximum Head: 14.1 Ft
- Maximum System Pressure: 9.95 PSI
- Specific Gravity Rating: 1.1
- Port Size: 5/8" NPT (suction), 3/4" NPT (discharge)
- Motor Enclosure: TEFC (Totally Enclosed Fan Cooled)
Frequently Asked Questions
Q: Can the Iwaki MD-20RT-220 run dry without damage?
A: No, this pump should not be run dry for extended periods. Like most magnetic drive centrifugal pumps, it relies on the pumped fluid to lubricate and cool the bearings, so dry running can cause premature bearing wear.
Q: What kind of maintenance does this pump typically require?
A: Because it uses a seal-less magnetic drive design, there are no mechanical seals to replace, which significantly reduces routine maintenance. Periodic inspection of the bearings and impeller assembly is generally all that's needed.
Q: Is the MD-20RT-220 suitable for continuous duty operation?
A: Yes, it is designed for continuous duty in industrial and process environments, supported by its TEFC motor and built-in thermal overload protection with automatic restart.
Q: Can this pump handle viscous or particulate-laden fluids?
A: This pump is designed primarily for clean to moderately viscous fluids. Heavy particulate content can accelerate wear on the impeller and bearings, so filtration is recommended for fluids containing solids.
Q: What voltage and phase does the MD-20RT-220 require?
A: It operates on 220V AC (220/240V, 50/60Hz), single phase power.
CLRMarine
