Your cart is currently empty!
- You can only add 1 quantity of this product to the cart.

ISO 8233:2024
ISO 8233:2024 Thermoplastics valves – Torque – Test method
CDN $76.00
Description
This document specifies a test method for the determination of the opening, closing and running torque of thermoplastics valves.
This document is applicable to all types of manually operable thermoplastics valves, with or without actuator, intended to be used for the transport of fluids.
NOTE 1        Examples of valve types tested with this method are in ISO 4437-4, ISO 16135, ISO 16136, ISO 16138, ISO 16139, ISO 16486-4, ISO 21787, EN 1555-4[13] and EN 12201-4 [14].
This document does not specify the relationship between the torque and its possible increase after prolonged use of the valve under a specific working condition or wear/chemical aggression of the materials.
NOTE 2        Concerning the chemical aggression of the materials, a collection of data is reported in ISO/TR 10358 concerning the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use with repeated opening and closing operations. Further information is provided in ISO 8659.
Edition
2
Published Date
2024-03-01
Status
PUBLISHED
Pages
5
Format 
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment

Abstract
This document specifies a test method for the determination of the opening, closing and running torque of thermoplastics valves.
This document is applicable to all types of manually operable thermoplastics valves, with or without actuator, intended to be used for the transport of fluids.
NOTE 1        Examples of valve types tested with this method are in ISO 4437-4, ISO 16135, ISO 16136, ISO 16138, ISO 16139, ISO 16486-4, ISO 21787, EN 1555-4[13] and EN 12201-4 [14].
This document does not specify the relationship between the torque and its possible increase after prolonged use of the valve under a specific working condition or wear/chemical aggression of the materials.
NOTE 2        Concerning the chemical aggression of the materials, a collection of data is reported in ISO/TR 10358 concerning the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use with repeated opening and closing operations. Further information is provided in ISO 8659.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 80004:2011 Nanotechnologies – Vocabulary – Part 7: Diagnostics and therapeutics for healthcare
0 out of 5CDN $115.00 Add to cart -
ISO 10110:2019 Optics and photonics – Preparation of drawings for optical elements and systems – Part 1: General
0 out of 5CDN $312.00 Add to cart -
ISO 8384:2019 Ships and marine technology – Dredgers – Vocabulary
0 out of 5CDN $76.00 Add to cart -
ISO 15424:2025 Information technology – Automatic identification and data capture techniques – Data carrier identifiers (including symbology identifiers)
0 out of 5CDN $233.00 Add to cart