Standard

BS EN ISO 8233:2024

Thermoplastics valves. Torque. Test method

Current

•

Published:

31 Mar 2024

1 Scope

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.

BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.

Product Details

Descriptors

Valves

Plastics

Mechanical testing

Fluid equipment

Size

Testing conditions

Thermoplastic polymers

Torque

ICS Codes

23.060.01 Valves in general

83.140.30 Plastics pipes and fittings for non fluid use

Committee

PSE/18

International relationships

Identical to:

ISO 8233

EN ISO 8233

ISBN

978 0 539 21703 2

Publisher

BSI