Product category:
Pumps, Vacuum pumps
News Release from: JP Pumps | Subject: TopGear MAG
Edited by the Processingtalk Editorial
Team on 11 April 2008
Mag-drive gear pumps for peace of mind
pumping
Reliability and safety are of paramount importance for pumping applications that require the safe transfer of corrosive, toxic or expensive liquids: JP Pumps offer the seal-less leak-proof TopGear MAG
As the name suggests, the Johnson Pump TopGear MAG internal gear pumps are magnetically driven so they are seal-less by design and specifically developed for handling low or high viscosity hazardous or toxic liquids, or for liquids which are problematic to seal-off TopGear MAG pumps provide a maximum capacity of 80m3/h, a maximum differential pressure of 16 bar and can operate on liquids with a maximum temperature of 250C
This article was originally published on Processingtalk on 8 Nov 2007 at 8.00am (UK)
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Total containment of the liquid inside the pump is achieved using a hermetically sealed can, which effectively isolates the liquid from the surrounding environment.
This eliminates the need for shaft seals and the associated wear and leakage that would normally occur.
The MAG drive ensures a clean, safe and leak-free operation, which is so important for safe and reliable pumping of aggressive liquids.
An important feature of the pump is the large gap between the inner magnet and can, which minimises friction losses when pumping high viscosity media thereby ensuring low heat generation and long-life operation.
TopGear MAG pumps are available with silicone carbide bearings: these materials are extremely wear resistant and enable efficient handling of low viscosity media.
Also, a built-in safety system is incorporated into the pump which prevents both the inner and outer magnetic rotors from running against the can in case of bearing failure.
Thanks to the use of the highly chemically resistant Hastelloy C4 can material between the magnets, eddy current losses are reduced to a minimum whilst also increasing pumping efficiency and minimising the pump operating temperature.
Simple inspection and maintenance is enabled by the easily disassembled back and front pull out design.
The TopGear MAG, which is designed for complete inter-changeability with the existing TopGear range of pumps (GM and H models), is also available with options such as, heating and cooling jackets which safeguard the pump in start-up and shut-down process, while steam or thermal oil options are also available.
Typical applications include pumping a very wide range of hazardous and toxic liquids such as; phenol, solvents, isocyanates, sodium hydroxide, epoxy resin, fuel additives, caustic solutions, oils, bitumen and alcohols.
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