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  MAGNETICALLY COUPLED PUMPS
MATERIALS OF CONSTRUCTION

CYCOLAC (ABS)
DELRIN
EPOXY
HASTELLOY “C”
KYNAR
POLYPROPYLENE
RYTON
316 STAINLESS STEEL
 
How
magnetic drive
increases
pump life


In the last few years the magnetically coupled pump has increasingly been recognized as a sophisticated design to solve critical pumping problems.
Inasmuch as no shaft penetrates into the body of the pump, there is no need for a shaft seal with its constant drag. Torque is transmitted by a magnetic field from the magnet attached to the motor through the solid body to the magnet attached to
the impeller. No shaft, no seals, no seal leaks, no air leaks and no friction. It is important to remember that a magnetic drive pump behaves like any other centrifugal pump, and all the laws of centrifugal pump design still apply. An exception is when liquids with a specific gravity over 1.2 are to be pumped, then the magnetic drive takes on added importance.
Since the magnetic torque governs the output, anyone misapplying the pump, especially with liquids heavier than water, will find a built-in safety factor that will protect the user’s investment: the slipping of the magnets avoids motor burnout. If a typical seal-type pump is misapplied,
it can overload the motor and cause a burnout.
In contrast the magnetic drive will indicate a problem and save the entire pump. If the impeller diameter is reduced as necessary to fit the specific solution as recommended by the factory, the magnetic drive offers reliable, trouble-free performance for many years. Since there are only two moving areas in the pump, the motor and the impeller assembly, there is very little to go wrong. Should abrasive solutions be pumped, depending on percentages of solids, bushing materials with different degrees of resistance are available.

Water Cooling Corp. The Pump Warehouse
P.O. Box 220056 | Rosedale, NY 11422
Phone: Toll Free: 1.877.559.7894 | Fax: 718.525.1826