Standard
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AS 4840-2001
[Current]Low pressure regulators for use in industrial compressed gas reticulation systems
Specifies the requirements of low pressure regulators for use with industrial compressed gas pipelines. The gas pressure in these pipelines is not to exceed 2100 kPa. These low pressure regulators are intended for industrial use, and regulators intended for medical gas pipeline use, together, with fixed delivery LP gas regulators for domestic and recreational purposes, are not covered by this Standard. As a guide and recommendation, regulators for use in beverage dispensing pipelines have been included in This Standard for users in that industry.
Published: 31/01/2001
Pages: 18
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 General design requirements
4.1 Maximum working pressure (MWP)
4.2 Service temperature range
4.3 Materials
4.4 Pressure gauges
4.5 Pressure relief devices
4.6 Attachments
5 Specific design requirements
5.1 Acetylene regulators
5.2 Oxygen regulators
5.3 LPG regulators
5.4 CO2 and CO2 mixture regulators
6 Construction requirements
6.1 Materials for acetylene regulators
6.2 Materials for oxygen regulators
6.3 Overpressure requirement
6.4 Inlet filter
6.5 Pressure adjustment
6.6 Inlet fittings
6.7 Outlet fittings
6.8 Connections
6.9 Period of acceptance
6.10 Cleanliness
6.11 Gastightness
7 Performance
7.1 Flow characteristics
7.2 Static increment
8 Marking
8.1 Identification
8.2 Colour coding
8.3 Inlet and outlet ports
8.4 Instructions
Appendix A
Appendix B
B1 Scope
B2 Principle
B3 Reagent
B4 Apparatus
B5 Procedure
B6 Calculation
B7 Report
Appendix C
C1 Apparatus
C2 Prior to testing
C3 Test procedure
Appendix D
D1 Prior to testing
D2 Test procedure
Appendix E
E1 Test procedure—External leaks
E2 Test procedure—Internal leaks
E3 Report
Appendix F
F1 General performance
F2 Test procedure—Flow characteristics
F3 Test procedure—Static increment
F4 Report
Cited references in this standard
CGA G-4.1
Cleaning equipment for oxygen service
CGA E-1
Standard connections for regulator outlets, torches and fitted hose for welding and cutting equipment
[Current]
Gas cylinders for industrial, scientific, medical and refrigerant use — Labelling and colour coding
Content history
AS 4840-2001 Rec:2016
DR 99521
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