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BSI 23/30424795 DC 2023

BSI 23/30424795 DC 2023

$13.70

BS EN ISO 10297. Gas cylinders. Cylinder valves. Specification and type testing

Published By Publication Date Number of Pages
BSI 2023 67
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PDF Catalog

PDF Pages PDF Title
7 Foreword
9 Introduction
11 1 Scope
12 2 Normative references
3 Terms and definitions
19 4 Valve description
26 5 Valve design requirements
5.1 General
5.2 Materials
27 5.3 Valve connections
28 5.4 Mechanical strength
5.4.1 Resistance to hydraulic pressure
5.4.2 Resistance to mechanical impact
29 5.4.3 Resistance to valve stem impact
5.5 Valve operating mechanism
5.5.1 Opening and closing of the valve
5.5.2 Endurance
30 5.5.3 Resistance to overtorquing
32 5.5.4 Acetylene specific requirements
5.6 Valve operating device
5.6.1 Closing direction
33 5.6.2 Handwheel diameter
5.6.3 Exposure to flame
5.7 Leakage
34 5.8 Resistance to ignition
5.9 Flow capacity
35 6 Type testing
6.1 General
6.2 Test schedule
38 6.3 Documentation
6.4 Test samples
39 6.5 Test report
6.6 Test temperatures
6.7 Test pressures
6.7.1 Valve hydraulic test pressure
6.7.2 Valve test pressure
40 6.8 Test gases
6.8.1 Gas quality
41 6.8.2 Leak tightness tests
6.8.3 Endurance tests
6.8.4 Acetylene decomposition test
6.8.5 Oxygen pressure surge test
6.9 Hydraulic pressure test
42 6.10 Flame impingement test
6.11 Excessive torque tests
6.11.1 Handwheel operated valves
6.11.2 Key and toggle operated valves
6.11.3 VIPR type€B and VIPR type C with the flow selector acting as the primary valve operating mechanism
43 6.12 Leak tightness tests
6.12.1 General
6.12.2 Internal leak tightness test
44 6.12.3 External leak tightness test
45 6.13 Endurance test
46 6.14 Endurance test of VIPR types€B and C
47 6.15 Endurance test of the filling connection non-return valve
48 6.16 Visual examination
7 Marking
50 Annex€A (normative) Impact test
52 Annex€B (normative) Tests for acetylene valves
54 Annex€C (normative) Oxygen pressure surge test
59 Annex€D (informative) Example of a vacuum test
60 Annex€E (normative) Endurance test machine
62 Annex€F (normative) Required tests for validation of changes and/or material variants within a valve design
66 Bibliography

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BSI 23/30424795 DC 2023
$13.70