Product category:
Potable water metering and distribution
News Release from: Trelleborg Sealing Solutions - Orkot | Subject: O-Ring material for drinking water
Edited by the Processingtalk Editorial
Team on 05 October 2006
Watertight sealing technology for
drinking water
Trelleborg Sealing Solutions has developed an O-Ring material for drinking water applications that is both effective and long lasting
Trelleborg Sealing Solutions has developed an O-Ring material for drinking water applications that is both effective and long lasting In tests, Trelleborg engineers simulated likely conditions within water systems, to develop a range of sealing materials and coating technologies, offering the optimum product
This article was originally published on Processingtalk on 26 Sep 2008 at 8.00am (UK)
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The only economic way of producing O-Rings for infrastructure sealing applications is by injection moulding.
To make O-Ring materials suitable for this process, softeners are added to the elastomer.
However, these softeners mean that injection moulded seals are not effective in the long term when fitted into plastic pipes.
Over time, a reaction occurs and softeners tend to migrate from the seal to the pipe.
Consequently, the challenge was to develop an elastomer compound that contained minimal softeners yet still allowed economic and efficient injection moulding of O-Rings.
After extensive research and testing, two compounds proved to have the desired flow characteristics for moulding with few or no softeners.
One has limited softener content while the other contains no softeners at all!.
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