Magnetic centrifugal pumps MDM NP series – plastic
Plastic pumps with magnetic coupling for leak-proof and safe pumping.
The MDM Series of Magnetic drive process pumps have wetted parts made of fluororesin. Natural PFA and CFRETFE being standard materials of construction. The MDM features a unique mechanism which gives a greatly improved performance against dry running (Non
Unique design prevents abnormal running (Non contact system) (PAT.) The pump design features a mechanism to withstand abnormal condition. High magnet power of the rare earth magnets prevents the magnet capsule coming into contact with the thrust ring of the rear casing, thus preventing melting of fluororesin components due to heat generation. This greatly improves resistance against abnormal condition in comparison with conventional magnetic drive pumps made of fluororesin.
Key Features
Non contact system
With the non contact system the MDM features a unique mechanism, which gives a greatly improved performance against dry running. The high magnet force of the rare earth magnets prevents coming in contact of the contact surfaces in the front and rear areas of the pump. Therefore high temperatures are avoided. This greatly improves resistance against dry running in comparison with conventional mag. drive fluororein pumps.
Best chemical resitance
Carbon fibre reinforced ETFE and PFA linings can be supplied to cover most applications. PFA being a natural unfilled material generates only few contaminations and makes it ideally suited for transfering of high purity chemicals.
Excellent durability
The fluororesin front casings are covered with a ductile iron casing, which add strenght and durability. Due to the highest sress under which the rear casing is placed, it is protected by a rear casing cover made of fibre reinforced plastic. Additionally to the higher stability, the eddy current loss caused by the rotating magnetic field is eliminated. Should it come in contact with the magnet capsule, no spark would be generated. Also the magnet capsule is fitted with a metal core to obtain a higher resistance against vibrations.
Applications
- Chemical industry
- Metallurgy
- Coke industry
- Food industry
- Pharmaceutical industry
- Metal plating
- Energy
- Seawater pools
Advantages
- Tightness - the magnetic clutch drive eliminates product leakage through the shaft seal, since the design does not provide for it.
- Economy - the pump design does not require frequent and expensive repairs to replace seals
- Japanese quality - pumps are designed and manufactured in Japan
Main materials
- PFA (perfluoroalkoxy) is a high-performance thermoplastic material that belongs to the fluoropolymer family, similar to PTFE, but can be melted and recycled.
- SiC Silicon Carbide - has high wear resistance and corrosion resistance, which makes this material one of the best materials for use in chemical pumps.
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- Maximum flow rate Q
- 1400 l/min
- Maximum head H
- 70 m
- Input
- 0,4 - 15 kW
- Temperature range
- -10 - +150 ⁰C