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AS 4627:2017
[Current]Quick-connect devices for gas
Specifies requirements and test methods for quick-connect devices up to 50mm size for use on natural gas (NG), simulated natural gas (SNG), town gas (TG), tempered liquefied petroleum gas (TLP) and liquefied petroleum gas in vapour phase (LP Gas).
Published: 07/02/2017
Pages: 29
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Classification
1.3 Referenced documents
1.4 Definitions
2 Design and construction
2.1 Materials
2.1.101 General
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 Brass parts
2.1.6 [Text deleted]
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 device to be clean
2.2.5 Accidental displacement of parts
2.2.6 Springs
2.2.7 Securing of parts
2.2.8 Sharp edges
2.2.9 Operating travel
2.2.10 Holes for assembly or mounting
2.2.11 Permanent sealing of non-functional holes
2.2.12 Self-tapping screws
2.2.13 Application of sealant
2.2.14 Construction of parts not covered by this Standard
2.2.15 Tightening of a gland or any other adjustments
2.2.16 Incorrect assembly
2.3 Design
2.3.1 Type 1 quick-connect devices
2.3.101 Type 27 quick-connect devices
2.3.2 Components requiring servicing
2.3.3 Special tools not required for servicing or replacement
2.3.4 Connections
2.3.5 Type 1 quick-connect device plug
2.3.6 Quick-connect device as an integral part of the end fittings of a hose
2.3.102 Type 27 quick-connect device as an integral part of an assembly other than a hose
2.3.7 No leakage during connection or disconnection
2.3.8 Force required to cause escape of gas
2.3.9 Mating parts—Correct assembly
2.4 Markings
3 Performance requirements
3.1 Satisfactory performance over declared temperature range
3.2 Gas leakage
3.2.1 Hydrostatic safety test
3.2.2 External leakage
3.2.3 Internal leakage
3.3 Flow conditions
3.3.1 Pressure loss
3.3.2 Excess flow valve
3.3.3 Excess flow valve—Performance in the activated state
3.4 Mechanical strength
3.4.1 Resistance to applied torque
3.4.2 Resistance to applied bending moments
3.4.3 Resistance to impact
3.4.4 Drop test
3.4.5 Manual effort to connect or disconnect
3.4.6 Maximum instantaneous torque or force
3.4.7 Mating parts—Locking system
3.5 Durability—cycling test
3.6 Thermal protection
3.7 Exposure to ultraviolet (UV) light
Appendix A
Appendix B
B1 Test medium and gases
B1.1 Test medium
B1.2 Test gases
B2 Lubricants
B3 M.O.T. 2.4: Markings and labels
B3.1 Scope
B3.2 Method
B3.3 Apparatus
B3.4 Materials
B3.5 Procedure
B3.6 Test report
B4 M.O.T. 3.2.1: Hydrostatic safety test
B4.1 Scope
B4.2 Method
B4.3 Apparatus
B4.4 Preparation of apparatus
B4.5 Procedure
B4.6 Test report
B5 M.O.T. 3.2.2: External leakage
B5.1 Scope
B5.2 Method
B5.3 Apparatus
B5.4 Materials
B5.5 Preparation of apparatus
B5.6 Procedure
B5.7 Test report
B6 M.O.T. 3.2.3: Internal leakage
B6.1 Scope
B6.2 Method
B6.3 Apparatus
B6.4 Materials
B6.5 Preparation of apparatus
B6.6 Procedure
B6.7 Test report
B7 M.O.T. 3.3.1: Pressure loss
B7.1 Scope
B7.2 Method
B7.3 Apparatus
B7.4 Materials
B7.5 Preparation of apparatus
B7.6 Procedure
B7.6.1 Type 1 socket
B7.6.2 Hose assembly with Type 1 plug
B7.6.3 Type 2 and Type 3 devices
B7.6.101 Type 27 devices
B7.7 Test report
B8 M.O.T. 3.4.1: Torque test
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 M.O.T. 3.4.2: Bending moment test
B9.1 Scope
B9.2 Method
B9.3 Apparatus
B9.4 Preparation of apparatus
B9.5 Procedure
B9.6 Test report
B10 M.O.T. 3.4.3: Impact resistance
B10.1 Scope
B10.2 Method
B10.3 Apparatus
B10.4 Preparation of apparatus
B10.5 Procedure
B10.6 Test report
B11 M.O.T. 3.4.5–3.4.6: Operating effort
B11.1 Scope
B11.2 Method
B11.3 Apparatus
B11.4 Preparation of apparatus
B11.5 Procedure
B11.6 Test report
B12 M.O.T. 3.4.7: Pulling force
B12.1 Scope
B12.2 Method
B12.3 Apparatus
B12.4 Materials
B12.5 Preparation of apparatus
B12.6 Procedure
B12.7 Test report
B13 M.O.T. 3.5: Durability—cycling test
B13.1 Scope
B13.2 Method
B13.3 Apparatus
B13.4 Materials
B13.5 Procedure
B13.6 Test report
B14 M.O.T. 3.2.101: External leakage for type 27 quick-connect devices
B14.1 Scope
B14.2 Method
B14.3 Apparatus
B14.4 Materials
B14.5 Preparation of apparatus
B14.6 Procedure
B14.7 Test report
B.15 M.O.T. 3.3.2 and 3.3.3: Excess flow
B15.1 Scope
B15.2 Method
B15.3 Apparatus
B15.4 Materials
B15.5 Preparation of apparatus
B15.6 Procedure
B15.7 Test report
B16 M.O.T. 3.6: Thermal protection
B.16.1 Scope
B16.2 Method
B16.3 Apparatus
B16.4 Materials
B16.5 Preparation of apparatus
B16.6 Procedure
B16.7 Test report
Appendix C
Amendment control sheet
AS 4627:2017
Amendment No. 1 (2020)
Revised text amendment
Amendment No. 2 (2021)
Correction amendment
Amendment No. 3 (2024)
Revised text amendment
Cited references in this standard
UL 2061
Standard for adapters and cylinder connection devices for portable LP-Gas cylinder assemblies
ANSI Z21.81
Cylinder connection devices (also published as CSA 6.25:R2015)
[Current]
Valves for compressed gas cylinders, Part 2: Outlet connections (threaded) and stem (inlet) threads
Content history
[Current]
[Current]
[Current]
[Superseded]
DR2 AS 4627:2016
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