British Standards Institution

Source:: ISO
Committee:: PSE/18/1 - Industrial valves, steam traps, actuators and safety devices against excessive pressure - Valves - Basic standards
Categories:: Information management | Standardization. General rules | Measurement and Science | Testing | Engineering | Fluid systems and components | Valves | Valves. Other

Scope

This document specifies testing procedures for evaluation of external leakage of valve stem seals (or shaft) of isolating valves and control valves intended for application in volatile air pollutants and hazardous fluids. End connection joints, body joints, vacuum application, effects of corrosion, and radiation are excluded from this document.

This document concerns classification system and qualification procedures for type testing of valve stem sealing.

This document is not intended to replace type testing of valve assemblies or valve production testing. Corrosion tests are not included in this document.

Purpose

The purpose of this part of ISO 15848 is to establish a uniform procedure for evaluation of process valve stem packing.

The testing approaches defined within this document provide a method for evaluating packing systems. This testing program shall provide a basis for the comparison of the emissions and life cycle performance of packing.

Use of this document assumes the execution of its provisions and is entrusted to appropriately qualified and experienced personnel because it calls for procedures that can be injurious to health if adequate precautions are not taken. This document refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage of the procedure.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

04/05/2021

Proposal end date:

07/07/2021

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/TC 153 N 489, ISO/NP 15848-3 Industrial valves -- Measurement, test and qualification procedures for fugitive emissions -- Part 3: Classification system and qualification procedures for type testing of stem seals for valves

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