AS 4627-2005

1 - AS 4627-2005 QUICK-CONNECT DEVICES FOR GAS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND DEFINTIONS
6 - 1.1 SCOPE
6 - 1.2 CLASSIFICATION
6 - 1.2.1 Type
6 - 1.3 DEFINITIONS
6 - 1.3.1 Authority
6 - 1.3.2 Certified
6 - 1.3.3 Certifying body
6 - 1.3.4 Bayonet fitting
6 - 1.3.5 Connector ends
7 - 1.3.6 Gas
7 - 1.3.7 Hose
7 - 1.3.8 Hose assembly
7 - 1.3.9 Quick-connect device
7 - 1.3.10 Rated working pressure
7 - 1.3.11 Technical regulator
8 - SECTION 2 DESIGN AND CONSTRUCTION
8 - 2.1 MATERIALS
8 - 2.1.1 Continuity of satisfactory operation
8 - 2.1.2 Suitability of materials for conditions of use
8 - 2.1.3 Materials in contact with gas
8 - 2.1.4 Melting point of materials
8 - 2.1.5 Brass parts
8 - 2.1.6 Component parts materials selected to appropriate Standards
8 - 2.2 CONSTRUCTION
8 - 2.2.1 Continuity of satisfactory operation
8 - 2.2.2 Castings and hot pressings
8 - 2.2.3 Sealing of porous castings or cracks
8 - 2.2.4 Assembled device to be clean
8 - 2.2.5 Accidental displacement of parts
9 - 2.2.6 Springs
9 - 2.2.7 Securing of parts
9 - 2.2.8 Sharp edges
9 - 2.2.9 Operating travel
9 - 2.2.10 Holes for assembly or mounting
9 - 2.2.11 Permanent sealing of non-functional holes
9 - 2.2.12 Self-tapping screws
9 - 2.2.13 Application of sealant
9 - 2.2.14 Construction of parts not covered by this Standard
9 - 2.2.15 Tightening of a gland or any other adjustments
9 - 2.2.16 Incorrect assembly
9 - 2.3 DESIGN
9 - 2.3.1 Components requiring servicing
9 - 2.3.2 Special tools not required for servicing or replacement
10 - 2.3.3 Manual effort to connect or disconnect
10 - 2.3.4 Maximum instantaneous torque or force
10 - 2.3.5 Connections
10 - 2.3.6 Type 1 quick-connect device
10 - 2.3.7 Quick-connect device as an integral part of the end fittings of a hose
10 - 2.3.8 Mating parts-Locking system
10 - 2.3.9 No leakage during connection or disconnection
10 - 2.3.10 Full flow capacity
10 - 2.3.11 Force required to gas leakage
10 - 2.3.12 Mating parts-Correct assembly
11 - 2.4 MARKINGS
11 - 2.4.1 General
12 - SECTION 3 PERFORMANCE REQUIREMENTS
12 - 3.1 GENERAL
12 - 3.1.1 Satisfactory performance over declared temperature range
12 - 3.2 GAS LEAKAGE
12 - 3.2.1 External leakage
12 - 3.2.2 Internal leakage
12 - 3.3 PRESSURE LOSS
12 - 3.3.1 Type 1 quick-connect socket
12 - 3.3.2 Hose assembly
12 - 3.3.3 Type 2 and 3 quick-connect devices
12 - 3.4 MECHANICAL STRENGTH
12 - 3.4.1 Resistance to applied torque
12 - 3.4.2 Resistance to applied bending moments
12 - 3.4.3 Resistance to impact
12 - 3.4.4 Drop test
13 - 3.5 DURABILITY
13 - 3.5.1 Cycling test
14 - APPENDIX A - FIGURES A1 TO A5
20 - APPENDIX B - METHODS OF TEST
20 - B1 TEST MEDIUM AND GASES
20 - B1.1 TEST MEDIUM
20 - B1.2 TEST GASES
20 - B2 SAMPLES
20 - B3 LUBRICANTS
21 - B4 M.O.T. 2.3.3/2.3.4 Œ 98 OPERATING EFFORT
21 - B4.1 SCOPE
21 - B4.2 METHOD
21 - B4.3 APPARATUS
21 - B4.4 PREPARATION OF APPARATUS
21 - B4.5 PROCEDURE
21 - B4.6 RESULT
23 - B5 M.O.T. 2.3.8 Œ 84 PULLING FORCE
23 - B5.1 SCOPE
23 - B5.2 METHOD
23 - B5.3 APPARATUS
23 - B5.4 MATERIALS
23 - B5.5 PREPARATION OF APPARATUS
23 - B5.6 PROCEDURE
23 - B5.7 RESULT
24 - B6 M.O.T. 2.4.1 Œ 95 MARKINGS AND LABELS
24 - B6.1 SCOPE
24 - B6.2 METHOD
24 - B6.3 APPARATUS
24 - B6.4 MATERIALS
24 - B6.5 PROCEDURE
24 - B6.6 RESULT
25 - B7 M.O.T. 3.2.1(A) Œ 02 EXTERNAL LEAKAGE
25 - B7.1 SCOPE
25 - B7.2 METHOD
25 - B7.3 APPARATUS
25 - B7.4 MATERIALS
25 - B7.5 PREPARATION OF APPARATUS
25 - B7.6 PROCEDURE
26 - B7.7 RESULT
27 - B8 M.O.T. 3.2.1(B) Œ 90 HYDROSTATIC STRENGTH TEST
27 - B8.1 SCOPE
27 - B8.2 METHOD
27 - B8.3 APPARATUS
27 - B8.4 PREPARATION OF APPARATUS
27 - B8.5 PROCEDURE
27 - B8.6 RESULT
28 - B9 M.O.T. 3.2.2 Œ 02 INTERNAL LEAKAGE
28 - B9.1 SCOPE
28 - B9.2 METHOD
28 - B9.3 APPARATUS
28 - B9.4 MATERIALS
28 - B9.5 PREPARATION OF APPARATUS
28 - B9.6 PROCEDURE
29 - B9.7 RESULT
30 - B10 M.O.T. 3.3.1/3.3.2/3.3.3 Œ 96 PRESSURE LOSS
30 - B10.1 SCOPE
30 - B10.2 METHOD
30 - B10.3 APPARATUS
30 - B10.4 MATERIALS
30 - B10.5 PREPARATION OF APPARATUS
30 - B10.6 PROCEDURE
31 - B10.7 RESULTS
32 - B11 M.O.T. 3.4.1 Œ 83 TORQUE TEST
32 - B11.1 SCOPE
32 - B11.2 METHOD
32 - B11.3 APPARATUS
32 - B11.4 MATERIALS
32 - B11.5 PREPARATION OF APPARATUS
32 - B11.6 PROCEDURE
32 - B11.7 RESULT
33 - B12 M.O.T. 3.4.2 Œ 83 BENDING MOMENT TEST
33 - B12.1 SCOPE
33 - B12.2 METHOD
33 - B12.3 APPARATUS
33 - B12.4 PREPARATION OF APPARATUS
33 - B12.5 PROCEDURE
33 - B12.6 RESULT
34 - B13 M.O.T. 3.4.3 Œ 83 IMPACT RESISTANCE
34 - B13.1 SCOPE
34 - B13.2 METHOD
34 - B13.3 APPARATUS
34 - B13.4 PREPARATION OF APPARATUS
34 - B13.5 PROCEDURE
34 - B13.6 RESULT
35 - B14 M.O.T. 3.1.5/3.5.1 Œ 01 DURABILITY
35 - B14.1 SCOPE
35 - B14.2 METHOD
35 - B14.3 APPARATUS
35 - B14.4 MATERIALS
35 - B14.5 PROCEDURE
35 - B14.6 RESULT
36 - APPENDIX C - LIST OF REFERENCED DOCUMENTS

Specifies the uniform minimum requirements for manufacturers, designers, regulatory authorities, testing laboratories and similar organizations for the safety, performance and use of quick-connect devices for gas. These quick-connect devices are intended for use with natural gas, town gas, tempered liquefied petroleum gas and liquefied petroleum gas.

These requirements apply to 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 (LPG vapour).Compliance of a quick-connect device with these requirements does not imply that it is acceptable for use without supplemental tests in its intended application.

Originated as AG 212-1975.
Previous edition 1998.
Republished and designated AS 4627-2005.