BS ISO 23632:2021
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Industrial valves. Design validation-testing of valves
Hardcopy , PDF
13-12-2022
English
18-05-2021
This document specifies requirements and acceptance criteria for type testing, in compliance with design conditions, of metallic butterfly and ball valves used for isolating services for all industrial applications, and serves to validate the product design over 205cycles.This document excludes testing for safety devices, control valves, thermoplastics valves, and valves for water supply for human consumption and sewage (e.g. the EN1074 series).This document defines the procedure for extending the qualification of the tested valve to untested sizes and pressure designations of the same product range.The purpose of this type test is to validate the seat performance within manufacturer given pressure/temperature rating, provided by the manufacturer’s technical documentation of the product. This type test verifies torque requirements and the maximum allowable stem torque (MAST), as given in the manufacturer\'s technical documentation. This type test validates the durability of seat performance and operating torque through mechanical and thermal cycles.
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