BS 7650:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for pressure regulators used in welding, cutting and related processes with compressed gases up to 300 bar
Hardcopy , PDF
15-06-1998
English
15-06-1993
Committees responsible
Foreword
Specification
1. Scope
2. References
3. Definitions
4. Classification
5. Design and manufacturing requirements
5.1 Materials
5.2 Filter
5.3 Inlet connections
5.4 Pressure adjusting device
5.5 Relief valve
5.6 Mechanical resistance
5.7 Outlet connections
5.8 Pressure gauges
5.9 Marking of cylinder contents indicators
5.10 Resistance to oxygen ignition (oxygen regulators
only)
6. Operating requirements
6.1 Gas tightness
6.2 Flow capacity
6.3 Coefficient of pressure increase on closure R
6.4 Irregularity coefficient i
6.5 Relief valve
7. Performance and functional tests
7.1 Test gases
7.2 Accuracy of instrumentation
7.3 Test samples
7.4 Operating criteria
7.5 Ignition test (oxygen regulators only)
7.6 Mechanical strength test
7.7 Safety test
7.8 Internal leakage tests
8. Marking
9. Instructions
Annexes
A. (informative) Nomenclature and technical terms in
common use
B. (informative) Types and use of regulators
Tables
1. Equipment class
2. Relief valve performance values
3. Test pressures
Figures
1. Dynamic pressure characteristics
2. Example of the apparatus for measuring Qmax. and R
3. Example of the apparatus for determining i
4. Example of the apparatus for the ignition test
5. Connection tube
B.1 Diagrammatic illustration of indirect acting
regulator
B.2 Diagrammatic illustration of direct acting
regulator
List of references
Does not apply to regulators for use with liquefied or dissolved gases.
| Committee |
WEE/18
|
| DevelopmentNote |
DRAFT FOR COMMENT 92/72093 DC
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 341-1:1991 | Transportable gas container valves Specification for industrial valves for working pressures up to and including 300 bar |
| BS EN 562:2003 | Gas welding equipment. Pressure gauges used in welding, cutting and allied processes |
| BS EN 29539:1992 | Specification for materials for equipment used in gas welding, cutting and allied processes |
| BS EN 29090:1992 | Specification for gas tightness of equipment for gas welding and allied processes |
| BS 499-1:1991 | Welding terms and symbols Glossary for welding, brazing and thermal cutting |
| ISO 554:1976 | Standard atmospheres for conditioning and/or testing — Specifications |
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