CASE STUDY – OFFSHORE INDUSTRY – VALVE SEATS Background Valve manufacturers who were specifying either filled PTFE or Nylon as their soft seat material were not only restricting the design of their valves, but in some instances wrongly interpreting “Nylon” – one of the main reasons being that there are so many different grades of Nylon. Disadvantages There was a certain amount of confusion and ambiguity throughout the valve i

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