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| PFA offers the broadest range of resistance to chemical attack, lowest
permeation rate and highest temperature capability of all the fluoropolymer
materials, which ensures the maximum possible service life for lined magnetic drive pumps. |
Generally only available in cheaper ETFE (Ethylenetetrafluoroethylene) material
which has less chemical resistance, higher permeability and lower temperature resistance than PFA.
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Magnatex PFA linings are 5—6mm thick and therefore will last longer in
service than thinner ones of the same material and even longer when
compared to the ETFE and PVDF linings offered by most of our competitors.
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Most competitors’ linings are just 3‐4 mm thick which means they have
proportionately less corrosion and permeation resistance than Magnatex
lined pumps.
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High pressure molding at 1200 psi produces a positive locking of the lining
material and prevents lining movement in high vacuum or low suction
pressure applications.
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Most competitors have no mechanical means of restraining the casing
liner which can result in lining movement in high vacuum or low suction
pressure applications. Shifting or movement of the lining may result in linings collapsing onto the internal rotating elements leading to catastrophic failure of the pump.
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| The extra long main shaft bushing provides greater stability for operation
across the entire hydraulic range of the pump, with smooth, quiet opera‐ion and extremely low vibration. Greater shaft support surface area means lower hydraulic loading, less wear and longer service life!
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Competitors generally offer shorter main shaft bushings resulting in a
smaller surface area to support dynamic shaft loads. Less surface area,
less pump life!
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High pressure transfer molding @ 1200psi produces a lining with a dense,
uniform thickness and superior surface finish, all of which contribute to
superior service life in demanding chemical services. High pressure molding
also eliminates any air pockets between the casing lining and the armoring.,
which is critical in high temperature services.
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Competitors use a cheaper, atmospheric pressure, rotomolding process
which results in a thinner, less dense, more permeable lining material with
a less uniform surface finish. Rotomolded linings may have air bubbles trapped
behind them which can lead to linings cracking in high temperature applications.
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| Completely seamless inner magnet lining which eliminates a potential leak path for the process fluid to reach and attack the inner magnet.
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Most competitors have seams in the inner magnet lining that can allow aggressive chemicals to penetrate the lining which cause the magnet segments to swell and corrode, leading to catastrophic failure of the pump. |
