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ISO 8659:2020

Thermoplastics valves — Fatigue strength — Test method

Apr 3, 2020

General information

90.20     Apr 15, 2025

ISO

ISO/TC 138/SC 7

International Standard

23.060.01     83.140.30  

English   French  

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Published

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Scope

This document specifies the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use, with repeated opening and closure. It does not specify the ability of valves to withstand adverse conditions, in particular those of chemically aggressive fluid media and/or environments, or excessive fluid velocities and cavitation.
NOTE Concerning the chemical aggression of the materials, a classification table is reported in ISO/TR 10358[1].
This document includes values of the parameters necessary for the proper performance of the endurance test, with the reservation that the parameters are different in particular product standards (see 5.1).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 8659:1989

NOW

PUBLISHED
ISO 8659:2020
90.20 Standard under periodical review
Apr 15, 2025

National adoptions

SRPS EN ISO 8659:2021  
ISS

Thermoplastics valves - Fatigue strength - Test method (ISO 8659:2020)

60.60   Standard published

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