Product category:
Couplings, Seals, Gaskets
News Release from: Trelleborg Sealing Solutions | Subject: EPDM for deionised water
Edited by the Processingtalk Editorial
Team on 03 December 2003
Seals withstand de-ionised water for
Pharma plants
Tests clearly demonstrate that two of the Busak + Shamban specialist EPDM materials offer greater resistance to the destructive effects of high-purity water than other commonly used seal materials
Tests by seal developer and manufacturer Busak+Shamban, clearly demonstrate that two of their specialist EPDM materials offer greater resistance to the destructive effects of high-purity water, than other commonly used seal materials Results provide Busak+Shamban the opportunity to offer sealing solutions with improved performance, for the pharmaceutical and biotechnology sectors, where deionised water is widely used
This article was originally published on Processingtalk on 21 Jan 2004 at 8.00am (UK)
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High-temperature, high-purity, deionised water, frequently used within pharmaceutical and biotechnology processing is destructive to the elastomeric seals used within production equipment, such as quick-fit couplings etc Resultant degradation of the seals, may affect the quality/purity of the processed product.
In co-operation with a leading international pharmaceutical manufacturer, Busak+Shamban set out to find the best material for use with heated, high-purity water.
Throughout a long term test, a selection of seven materials was exposed to separated deionised water from the pharmaceutical manufacturer's processing system for 84 days at 90C.
Materials specialists from Busak+Shamban then measured the effect of the test environment on the hardness, weight, volume, elongation and tensile strength of each material.
Results of the tests revealed that two EPDM (Ethylene Propylene Diene Terpolymer) materials, E7502 and E7518, offered an increased resistance to high-temperature deionised water than the other materials tested.
Swelling volume and changes in material elongation were minimal in the two EPDM materials.
These test results encouraged the pharmaceutical company concerned to immediately integrate seals manufactured from E7502 and E7518 compounds within processing equipment handling deionised water.
Proving the resistance to high-purity water for E7502 and E7518 materials, follows on from impressive results already recorded for these materials used with CIP (Cleaning in Place) media.
Both sets of results demonstrate the suitability and benefits of specifying Busak+Shamban EPDM compounds E7502 and E7518 sealing materials, in any application where purity and media resistance are of paramount importance.
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