Magnetic-driven pumps are one of the most popular form of seal-less pumps. They are used where a leaks-free process operation must be maintained such as with aggressive or risky liquids, exotic materials, acids, alkalis, corrosives, pollutants and toxics. They are also useful for liquids that are difficult to seal and for liquids that must remain ultra pure.
Magnetic drive pumps, (magnetically coupled pumps), vary from traditional pumps in that the electric motor is coupled to the pump by magnetic means instead of a direct mechanical shaft. The major advantage is that the pump works via a drive magnet that eliminates any shaft sealing requirement. One of the disadvantages is that magnetic drive pumps cannot be used in some applications and can have limited power.
In a magnetic drive pump, the liquid pumped through the system exits at a different point than where it’s sucked into the pump. Liquid enters the pump, routes through the impeller and into a discharge chamber. The rotation of the impeller causes the liquid to increase in pressure, keeping if flowing so it discharges from the pump. Mag drive pumps are a form of a centrifugal pump.
A typical magnetic drive pump includes a rotating impeller located in an enclosed housing powered by a rotating magnetic field produced by individual magnets. This rotation maintains energy and motion in a fluid to keep it from going stagnant or solidifying.
In a magnetic drive pump, the impeller and motor have magnets attached to them. Permanent magnets are attached to the pump’s drive assembly. The drive magnet, the magnet responsible for driving the inner rotor, is attached on a second shaft operated by the motor. When the motor turns on, it spins its magnet. The magnetic force from the motor’s magnet causes the magnet on the impeller to spin and rotate the impeller.
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The 8124A and 8127A Series are the ideal sealing technology within Viking’s Universal Product Line pumps. It is dimensionally interchangeable with other Universal Product Line pumps, allowing an easy upgrade from packed or mechanical seals to seal-less technology.
The 8124A and 8127A Series’ canister is hermetically sealed, providing the highest level of liquid containment available by eliminating traditional dynamic shaft seals traditionally associated with hazardous, hard-to-seal, or expensive liquids. It also eliminates housekeeping issues and downtime due to seal failure. This product is designed to handle a broad range of applications (such as caustics, isocyanates, adhesives, solvents and mercaptans).
This Series features 9 different sizes. They may be applied to both thin and thick liquids, and operate in either direction. They are also capable of operating under suction lift conditions. The series continues the tradition of most robust line of internal gear pumps built by Viking Pump
Viking Pump 8124A and 8127A Mag Drive Seal-less Pump
The mag-drive pump (magnetically coupled) is the best method for handling toxic, noxious, crystallizing, or most other hazardous liquids since it completely contains the pumpage by isolating the drive shaft inside the pump housing. With no dynamic seal to leak or replace, the maintenance issues associated with seal leakage are eliminated.
When you need mag drive pump parts and accessories, Edelmann can help you. We offer many different pump parts, and if we don’t have it, we can arrange for a custom made pump part.