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The NMB series is used successful in many applications worldwide. The can is made from PTFE-seal insulated rings and a slotted outer can, what reduces EC-losses to a minimum. They are designed for increased safety and energy savings. Thus they can handle large motor torques, high speed and high pressure.
Advantages
Magnetic coupling for applications acc. to API 685 (similar to API 610)
Hermetically sealed
No contact of torque transmitting elements
No maintenance necessary
High efficiency can (Insulated rings and slotted outer can) for lowest eddy current losses (approx. 2 % of motor power)
Increased safety and energy savings compared to solid Hastelloy® cans
Sliding bearing optional
Operating range
Pressure: p = 45 bar (653 PSI)
Temperature: t = -40 °C ... +250 °C (-40 °F ... +482 °F) (SmCo), +120 °C (+248 °F) (NdFeB)
Torque: 18 … 1,879 Nm
Materials
Magnets: Samarium cobalt (MA3), Neodymium iron boron (MA8)
Metal parts: CrNiMo-Steel 1.4401/1.4436, PTFE Polytetrafluorethylen (T)
The power transmission occurs contact-free through magnets from the drive shaft to the product wetted output shaft. Between the two rotating parts is the can which is bolted to the container.
Notes
Different variants are available to meet specific requirements: