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AS 4617:2018
[Current]Manually operated gas valves
Specifies the requirements to manually operated valves up to 200 mm size for use on natural gas (NG), simulated natural gas (SNG), town gas (TG), tempered liquefied petroleum gas (TLP) and liquefied petroleum gas (LPG) in vapour phase.
Published: 28/06/2018
Pages: 36
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope, classification and definitions
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Classification
1.5 Definitions
2 Design and construction
2.1 Materials
2.1.1 Continuity of satisfactory operation
2.1.2 Suitability of materials for conditions of use
2.1.3 Materials in contact with gas
2.1.4 Melting point of metallic materials
2.1.5 Copper containing alloys
2.2 Construction
2.2.1 Continuity of satisfactory operation
2.2.2 Castings and hot pressings
2.2.3 Sealing of porous castings or cracks
2.2.4 Assembled valves to be clean
2.2.5 Accidental displacement of parts
2.2.6 Attachment of knobs, handles, dials and pointers
2.2.7 Springs
2.2.8 Securing of parts together
2.2.9 Sharp edges
2.2.10 Valves incorporating a means of ignition
2.2.11 Means of limiting the travel of manual valves
2.2.12 Holes for assembly or mounting
2.2.13 Permanent sealing of non-functional holes
2.2.14 Self-tapping screws
2.2.15 Application of lubricant or sealant
2.2.16 Adjustments by the user
2.3 Design
2.3.1 Components requiring servicing
2.3.2 Connections
2.3.3 Operation of valves
2.3.3.1 Types 1 and 3
2.3.3.2 Type 2
2.3.3.3 Type 4
2.3.4 Valve spindles
2.3.5 Mechanical parts
2.3.6 Lubricant or sealant
2.3.7 ‘OFF’ position
2.3.8 Means of compensating for wear
2.3.9 Valves with associated electrical device
2.3.10 Type 1 valves
2.3.10.1 Metallic materials
2.3.10.2 Angle between the fully open and fully closed positions
2.3.11 Type 2 valves
2.3.11.1 Metallic materials
2.3.11.2 Turndown
2.3.12 Type 3 valves
2.3.12.1 Design and performance
2.3.12.2 Rated working pressure
2.3.13 Type 4 valves
2.3.13.1 Metallic materials
2.3.13.2 Valve operating device
2.3.13.3 Valve operation
2.4 Markings
2.4.1 General
2.4.2 Marking of electrical connections
2.4.3 Durability of markings
2.5 Instructions
3 Performance requirements
3.1 General
3.2 Operating conditions
3.2.1 Performance in all mounting positions
3.2.2 Operating temperature range
3.3 Leakage
3.3.1 Hydrostatic safety test
3.3.2 External leakage
3.3.3 Internal leakage
3.4 Flow rate
3.4.1 Flow rate for a given pressure up to and including 80 mm nominal size
3.4.2 Flow rate for a given pressure greater than 80 mm nominal size
3.5 Operating effort
3.5.1 Opening and closing of valves
3.5.2 Maximum instantaneous torque or force—opening or closing
3.5.3 Unlocking of self-latching Type 2 valves
3.5.4 Force to disengage latch
3.6 Mechanical strength
3.6.1 Resistance to applied torque
3.6.2 Valves with two-piece bodies
3.6.3 Resistance to applied bending moments
3.6.4 Resistance to applied impacts
3.7 Durability
3.7.1 Cycling tests for valves
Appendix A
Appendix B
B1 Test medium and gases
B1.1 Test medium
B1.2 Test gases
B2 Lubricants
B3 Samples
B4 Heat resistance
B4.1 Scope
B4.2 Method
B4.3 Apparatus
B4.4 Procedure
B4.5 Test report
B5 Markings and labels
B5.1 Scope
B5.2 Method
B5.3 Apparatus
B5.4 Materials
B5.5 Procedure
B5.6 Test report
B6 Hydrostatic strength test
B6.1 Scope
B6.2 Method
B6.3 Apparatus
B6.4 Preparation of apparatus
B6.5 Procedure
B6.6 Test report
B7 External leakage
B7.1 Scope
B7.2 Method
B7.3 Apparatus
B7.4 Materials
B7.5 Preparation of apparatus
B7.6 Procedure
B7.7 Test report
B8 Internal leakage
B8.1 Scope
B8.2 Method
B8.3 Apparatus
B8.4 Materials
B8.5 Preparation of apparatus
B8.6 Procedure
B8.7 Test report
B9 Flow rate
B9.1 Scope
B9.2 Method
B9.3 Apparatus
B9.4 Materials
B9.5 Preparation of apparatus
B9.6 Procedure
B9.7 Calculations
B9.8 Test report
B10 Flow capacity
B10.1 Scope
B10.2 Method
B10.3 Apparatus
B10.4 Materials
B10.5 Preparation of apparatus
B10.6 Procedure
B10.7 Calculations
B10.8 Test report
B11 Operating effort
B11.1 Scope
B11.2 Method
B11.3 Apparatus
B11.4 Materials
B11.5 Preparation of apparatus
B11.6 Procedure
B11.7 Test report
B12 Unlocking of self-latching valves
B12.1 Scope
B12.2 Method
B12.3 Apparatus
B12.4 Procedure
B12.5 Test report
B13 Torque test
B13.1 Scope
B13.2 Method
B13.3 Apparatus
B13.4 Materials
B13.5 Preparation of apparatus
B13.6 Procedure—All valves
B13.7 Procedure—Valves of two piece construction
B13.8 Test report
B14 Bending moment test
B14.1 Scope
B14.2 Method
B14.3 Apparatus
B14.4 Preparation of apparatus
B14.5 Procedure
B14.6 Test report
B15 Impact resistance
B15.1 Scope
B15.2 Method
B15.3 Apparatus
B15.4 Preparation of apparatus
B15.5 Procedure
B15.6 Test report
B16 Durability of valves
B16.1 Scope
B16.2 Method
B16.3 Apparatus
B16.4 Materials
B16.5 Procedure
B16.6 Test report
Appendix C
Bibliography
Amendment control sheet
AS 4617:2018
Amendment No. 1 (October 2021)
Revised text amendment
Amendment No. 2 (March 2024)
Revised text amendment
Cited references in this standard
AS/NZS 5601
Gas installations (series)
[Current]
Method for detecting the susceptibility of copper and its alloys to stress corrosion cracking using the mercurous nitrate test
EN 1555-4
Plastics piping systems for the supply of gaseous fuels—Polyethylene (PE), Part 4: Valves
[Current]
Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 4: Valves
Content history
[Current]
[Current]
[Superseded]
DR AS 4617:2017
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