ISO 5208:2015
Industrial valves — Pressure testing of metallic valves
ISO 5208:2015 specifies examinations and tests that a valve manufacturer needs to act upon in order to establish the integrity of the pressure boundary of an industrial metallic valve and to verify the degree of valve closure tightness and the structural adequacy of its closure mechanism. This International Standard is intended to be applied in conjunction with the specific requirements of a valve product standard to the extent cited by the product standard as a normative reference. Where requirements of a product standard differ from those given in this International Standard, the requirements of the product standard apply.
ISO 5208:2015 is not applicable to the safety aspects of pressure testing.
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Foreword
Introduction
1 Scope
2 Terms and definitions
3 Conditions relevant to pressure testing
3.1 Purchaser examination options
3.2 Witnessing
3.3 Closure pressure testing options
4 Requirements for pressure testing
4.1 Forewarning
4.2 Location
4.3 Test equipment
4.4 Pressure measuring equipment
4.5 Shell surfaces
4.6 Test fluid
4.7 Test pressure
4.8 Pressure tests
4.9 Closure test compliance
4.10 Shell test
4.10.1 Shell test fluid
4.10.2 Shell test procedure
4.10.3 Shell test pressure
4.10.4 Shell test duration
4.10.5 Shell test acceptance criteria
4.11 Optional backseat test
4.11.1 General
4.11.2 Backseat test fluid
4.11.3 Recommended backseat test procedure
4.11.4 Backseat test pressure
4.11.5 Backseat test duration
4.11.6 Backseat test acceptance criteria
4.12 Closure test
4.12.1 General requirements
4.12.2 Closure test fluid
4.12.3 Leak detection
4.12.4 Closure test pressure
4.12.5 Closure test duration
4.12.6 Closure test progression
4.12.7 Closure test acceptance criteria
4.13 Certification of compliance
Annex A (normative) Equivalent DN numbers
Bibliography
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Foreword
Introduction
1 Scope
2 Terms and definitions
3 Conditions relevant to pressure testing
3.1 Purchaser examination options
3.2 Witnessing
3.3 Closure pressure testing options
4 Requirements for pressure testing
4.1 Forewarning
4.2 Location
4.3 Test equipment
4.4 Pressure measuring equipment
4.5 Shell surfaces
4.6 Test fluid
4.7 Test pressure
4.8 Pressure tests
4.9 Closure test compliance
4.10 Shell test
4.10.1 Shell test fluid
4.10.2 Shell test procedure
4.10.3 Shell test pressure
4.10.4 Shell test duration
4.10.5 Shell test acceptance criteria
4.11 Optional backseat test
4.11.1 General
4.11.2 Backseat test fluid
4.11.3 Recommended backseat test procedure
4.11.4 Backseat test pressure
4.11.5 Backseat test duration
4.11.6 Backseat test acceptance criteria
4.12 Closure test
4.12.1 General requirements
4.12.2 Closure test fluid
4.12.3 Leak detection
4.12.4 Closure test pressure
4.12.5 Closure test duration
4.12.6 Closure test progression
4.12.7 Closure test acceptance criteria
4.13 Certification of compliance
Annex A (normative) Equivalent DN numbers
Bibliography