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About This Item

 

Full Description

Specifies a method for testing the fatigue strength and performance of thermoplastic valves incorporated in a valve assembly with its obturator mechanism under pressure. Repeated opening and closing shall be performed for as many cycles and using the torque as specified by the particular product standard.

 

Document History

  1. ISO 8659:2020


    Thermoplastics valves - Fatigue strength - Test method

    • Most Recent
  2. ISO 8659:1989

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    Thermoplastics valves - Fatigue strength - Test method

    • Historical Version