Standard
UPDATE AVAILABLE
Track updates
AS 4624-2005
[Current]Combination controls for gas
Specifies the uniform minimum requirements for manufacturers, designers, regulatory authorities, testing laboratories and similar organizations for the safety, performance and use of combination controls up to 50 mm size. These combination controls are intended for use with natural gas, town gas, tempered liquefied petroleum gas and liquefied petroleum gas.
Published: 14/01/2005
Pages: 51
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 Classification
1.2.1 Regulator function classified according to type, class, and grade
1.2.1.1 Regulator type
1.2.1.2 Class
1.2.1.3 Grade
1.2.2 Automatic shut off valve function classification
1.3 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 materials
2.1.5 Parts in contact with water
2.1.6 Brass parts
2.1.7 Component parts materials selected to appropriate Standards
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 control to be clean
2.2.5 Accidental displacement of parts
2.2.6 Calibration
2.2.7 Attachment of knobs, handles, movable dials and pointers
2.2.8 Springs
2.2.9 Securing of parts
2.2.10 Sharp edges
2.2.11 Ignition means incorporated in combination control
2.2.12 Means of limiting the travel of manual valves
2.2.13 Holes for assembly or mounting
2.2.14 Permanent sealing of non-functional holes
2.2.15 Self-tapping screws
2.2.16 Application of sealant
2.2.17 Construction of parts not covered by this Standard
2.2.18 Tightening of a gland or any other adjustments
2.3 Design
2.3.1 Safety functions—‘Fail-safe’ type
2.3.2 Safety device cannot be overridden
2.3.3 Accessibility of integral parts
2.3.4 Adjusting devices
2.3.5 Locking device
2.3.6 Design of adjustable regulator
2.3.7 Components requiring servicing
2.3.8 Special tools not required for servicing or replacement
2.3.9 Venting
2.3.10 Knobs and movable dials
2.3.11 Valves
2.3.12 Connections
2.3.13 Pressure test points
2.3.14 Noise of operation
2.3.15 Manual shut off valves
2.3.16 Ignition interlock
2.3.17 Restart interlock
2.3.18 Automatic shut off valve
2.3.19 Location or enclosure of electrical parts
2.3.20 Separation of operating parts from stowed wiring
2.4 Markings
2.4.1 General
2.4.2 Marking of electrical connections
2.4.3 Control knobs and buttons
2.4.4 Durability of markings
2.5 Instructions
2.5.1 General
3 Performance requirements
3.1 General
3.1.1 Satisfactory performance in all mounting positions
3.1.2 Satisfactory performance over declared temperature range
3.1.3 Effort to open fully, close or reset valve
3.1.4 Torque or force to open or close valve
3.2 Gas leakage
3.2.1 External leakage
3.2.2 Internal leakage—Forward flow
3.2.3 Internal leakage—Reverse flow
3.3 Flow rate
3.3.1 Flow rate for a given pressure
3.4 Voltage variation
3.4.1 Device functions fully and correctly above and below rated voltage range
3.5 Mechanical strength
3.5.1 Resistance to applied torque
3.5.2 Resistance to applied bending moments
3.6 Thermoelectric flame safeguards
3.6.1 Time to establish or reset flame safeguard
3.6.2 Time to trip from fully heated position
3.6.3 No gas to pass main outlet unless pilot or flame proved
3.6.4 Weep line
3.6.5 Time to trip when disconnected from heated thermocouple
3.6.6 Time to trip after extended durability
3.6.7 Manual reset
3.7 Pressure regulators
3.7.1 Operating characteristics
3.8 Thermostats
3.8.1 Maximum and minimum operating temperatures
3.8.2 Operating temperature tolerances
3.8.3 Operating temperature tolerances after durability test
3.9 Automatic shut off valves
3.9.1 Time to close—Class 1 and Class 2
3.9.2 Time to close—Class 3
3.10 Other functions
3.10.1 Compliance with other Standards
3.11 Gas/air ratio controls
3.11.1 Pneumatic types
3.12 Durability
3.12.1 Cycling test
3.12.2 Electrical load connections
3.12.3 Electrically operated automatic shut off valves
3.12.4 Thermostat—Heat resistance
Appendix A
Appendix B
B.1 Test medium and gases
B.1.1 Testing medium
B.1.2 Test gases
B.2 Samples
B.3 Lubricants
B.4 M.O.T. 2.1.4 – 81 Melting point of control body and structural components
B.4.1 Scope
B.4.2 Method
B.4.3 Apparatus
B.4.4 Preparation for test
B.4.5 Procedure
B.4.6 Results
B.5 M.O.T. 2.4.4 – 95 Markings and labels
B.5.1 Scope
B.5.2 Method
B.5.3 Apparatus
B.5.4 Materials
B.5.5 Procedure
B.5.6 Result
B.6 M.O.T. 3.1.3(a)/3.1.4 – 81 Operating effort
B.6.1 Scope
B.6.2 Method
B.6.3 Apparatus
B.6.4 Materials
B.6.5 Preparation of apparatus
B.6.6 Procedure
B.6.7 Result
B.7 M.O.T. 3.1.3(b)/3.1.4 – 81 Opening force
B.7.1 Scope
B.7.2 Method
B.7.3 Apparatus
B.7.4 Materials
B.7.5 Preparation of apparatus
B.7.6 Procedure
B.7.7 Result
B.8 M.O.T. 3.2.1 – 02 External leakage
B.8.1 Scope
B.8.2 Method
B.8.3 Apparatus
B.8.4 Materials
B.8.5 Preparation of apparatus
B.8.6 Procedure
B.8.7 Result
B.9 M.O.T. 3.2.2 – 02 Internal leakage—Forward flow
B.9.1 Scope
B.9.2 Method
B.9.3 Apparatus
B.9.4 Materials
B.9.5 Preparation for test
B.9.6 Procedure
B.9.7 Result
B.10 M.O.T. 3.2.3–81—Internal leakage—Reverse flow
B.10.1 Scope
B.10.2 Method
B.10.3 Apparatus
B.10.4 Materials
B.10.5 Preparation of apparatus
B.10.6 Procedure
B.10.7 Result
B.11 M.O.T. 3.3.1–81—Flow capacity
B.11.1 Scope
B.11.2 Method
B.11.3 Apparatus
B.11.4 Materials
B.11.5 Preparation of apparatus
B.11.6 Procedure
B.11.7 Result
B.12 M.O.T. 3.5.1 – 81 Torque test
B.12.1 Scope
B.12.2 Method
B.12.3 Apparatus
B.12.4 Materials
B.12.5 Preparation of apparatus
B.12.6 Procedure
B.12.7 Result
B.13 M.O.T. 3.5.2 – 81 Bending moment test
B.13.1 Scope
B.13.2 Method
B.13.3 Apparatus
B.13.4 Preparation of apparatus
B.13.5 Procedure
B.13.6 Result
B.14 M.O.T. 3.7.1 – 81 Operating characteristics
B.14.1 Scope
B.14.2 Method
B.14.3 Apparatus
B.14.4 Materials
B.14.5 Preparation of apparatus
B.14.6 Procedure
B.14.7 Result
B.15 M.O.T. 3.8.1 – 95 Maximum and minimum set points
B.15.1 Scope
B.15.2 Method
B.15.3 Apparatus
B.15.4 Materials
B.15.5 Preparation
B.15.6 Procedure
B.15.7 Result
B.16 M.O.T. 3.8.2 – 95 Calibration point check after setting the thermostat
B.16.1 Scope
B.16.2 Method
B.16.3 Apparatus
B.16.4 Materials
B.16.5 Preparation of apparatus
B.16.6 Procedure
B.16.7 Result
B.17 M.O.T. 3.8.3 – 95 Calibration point check before and after durability test
B.17.1 Scope
B.17.2 Method
B.17.3 Apparatus
B.17.4 Materials
B.17.5 Preparation of apparatus
B.17.6 Procedure
B.17.7 Result
B.18 M.O.T. 3.12.1(a) – 98 Combination controls—Durability (manual shut off valves)
B.18.1 Scope
B.18.2 Method
B.18.3 Apparatus
B.18.4 Materials
B.18.5 Preparation of apparatus
B.18.6 Procedure
B.18.7 Results
B.19 M.O.T. 3.12.1(b) – 01 Combination controls—Durability (thermoelectric flame safeguard)
B.19.1 Scope
B.19.2 Method
B.19.3 Apparatus
B.19.4 Preparation of apparatus
B.19.5 Procedure
B.19.6 Results
B.20 M.O.T. 3.12.1(c) – 01 Combination controls—Durability (pressure regulator)
B.20.1 Scope
B.20.2 Method
B.20.3 Apparatus
B.20.4 Materials
B.20.5 Preparation of apparatus
B.20.6 Procedure
B.20.7 Results
B.21 M.O.T. 3.12.1(d) – 01 Combination controls—Durability (thermostat)
B.21.1 Scope
B.21.2 Method
B.21.3 Apparatus
B.21.4 Materials
B.21.5 Procedure
B.21.6 Results
B.22 M.O.T. 3.12.1(e) – 01 Combination controls—Durability (automatic shut off valves class 1 and 2)
B.22.1 Scope
B.22.2 Method
B.22.3 Apparatus
B.22.4 Materials
B.22.5 Preparation of apparatus
B.22.6 Procedure
B.22.7 Results
B.23 M.O.T. 3.12.1(f) – 01 Combination controls—Durability (automatic shut off valves class 3)
B.23.1 Scope
B.23.2 Method
B.23.3 Apparatus
B.23.4 Materials
B.23.5 Preparation of apparatus
B.23.6 Procedure
B.23.7 Results
B.24 M.O.T. 3.12.3 – 98 Combination controls—Durability (continuous operation)
B.24.1 Scope
B.24.2 Method
B.24.3 Apparatus
B.24.4 Materials
B.24.5 Procedure
B.24.6 Result
B.25 M.O.T. 3.12.4 – 98 Resistance to over-temperature
B.25.1 Scope
B.25.2 Method
B.25.3 Apparatus
B.25.4 Procedure
B.25.5 Result
Appendix C
Appendix D
Amendment control sheet
AS 4624-2005
Amendment No. 1 (2016)
Revised text
Cited references in this standard
[Current]
Method for detecting the susceptibility of copper and its alloys to stress corrosion cracking using the mercurous nitrate test
Content history
[Current]
[Superseded]
AS 4624-2005 REC:2021
AG 209-1998
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$203.34 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 user
Total$203.34 AUD
IMPORTANT