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1、AS 1357.12009 Australian Standard Valves primarily for use in heated water systems Part 1: Protection valves AS 1357.12009 This Australian Standard was prepared by Committee WS-026, Valves Primarily for Use in Warm and Hot Water Systems. It was approved on behalf of the Council of Standards Australi
2、a on 22 September 2008. This Standard was published on 28 January 2009. The following are represented on Committee WS-026: Australian Chamber of Commerce and Industry Australian Industry Group Building Officials Institute of New Zealand Consumers Federation of Australia Department of Health (South A
3、ustralia) Gas Appliance Manufacturers Association of Australia Institute of Hospital Engineering Australia Master Plumbers and Mechanical Services Association of Australia Master Plumbers Association of NSW Master Plumbers, Gasfitters and Drainlayers New Zealand New Zealand Employers and Manufacture
4、rs Association New Zealand Engineers Federation NSW Health Department Plumbing Product Industry Group (AUSTAP) Water Corporation Western Australia This Standard was issued in draft form for comment as DR 07139. Standards Australia wishes to acknowledge the participation of the expert individuals tha
5、t contributed to the development of this Standard through their representation on the Committee and through the public comment period. Keeping Standards up-to-date Keeping Standards up-to-date Australian Standards are living documents that reflect progress in science, technology and systems. To main
6、tain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may ha
7、ve been published since the Standard was published. Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting w www.standards.org.auww.standards.org.au Standards Australia welcomes suggestions for improvements, and encourages readers to notify us i
8、mmediately of any apparent inaccuracies or ambiguities. Contact us via email at mailstandards.org.aumailstandards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001. The Standard is downloaded from Standard Sharing AS 1357.12009 Australian Standard Valves primarily for use in he
9、ated water systems Part 1: Protection valves Originated as AS B2711968. AS B2711968 revised and redesignated AS 13571972. AS 13571972 revised and redesignated in part AS 1357.11988. Fourth edition 2009. COPYRIGHT Standards Australia All rights are reserved. No part of this work may be reproduced or
10、copied in any form or by any means, electronicor mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 8995 1 AS 1357.12009 2 PREFACE This Standard was prepared by the Australian memb
11、ers of the Joint Standards Australia/Standards New Zealand Committee WS-026, Valves Primarily for Use in Warm and Hot Water Systems, to supersede AS 1357.12004, Water supplyValves for use with unvented water heaters, Part 1: Protection valves, and ATS 5200.4762006, Technical Specification for plumbi
12、ng and drainage products, Part 476: Heated water systemsLeak protection device. After consultation with stakeholders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard as an Australian Standard rather than an Australian/New Zealand Standard. The objecti
13、ve of this Standard is to provide manufacturers with design, materials and performance requirements for the protection of valves. Other Standards covering heated water system valves include the following: AS 1357 Valves primarily for use in heated water systems 1357.2 Part 2: Control valves 4032 Wat
14、er supplyValves for the control of heated water supply temperatures 4032.1 Part 1: Thermostatic mixing valvesMaterials design and performance requirements 4032.2 Part 2: Tempering valves and end-of-line temperature actuated devices 4032.3 Part 3: Requirements for field testing, maintenance or replac
15、ement of thermostatic mixing valves, tempering valves and end of line temperature control devices The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an info
16、rmative appendix is only for information and guidance. Statements expressed in mandatory terms in notes to tables and figures are deemed to be requirements of this Standard. The Standard is downloaded from Standard Sharing 3 AS 1357.12009 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 6 1.2 AP
17、PLICATION.6 1.3 NORMATIVE REFERENCES6 1.4 DEFINITIONS 6 1.5 INSTRUMENTATION .8 1.6 MARKING8 SECTION 2 MATERIALS 2.1 GENERAL 9 2.2 CONTAMINATION OF WATER.9 2.3 CORROSION-RESISTANT METALLIC MATERIALS9 2.4 COPPER9 2.5 COPPER ALLOY9 2.6 DEZINCIFICATION-RESISTANT (DR) COPPER ALLOY9 2.7 STAINLESS STEEL .
18、10 2.8 DIAPHRAGM MATERIALS, AND VALVE SEATS. 10 2.9 TEMPERATURE-SENSING PROBE. 10 2.10 OTHER COMPONENTS 10 SECTION 3 GENERAL DESIGN AND CONTRUCTION 3.1 GENERAL 12 3.2 STRENGTH 12 3.3 END CONNECTIONS 12 3.4 COMPONENTS AND VALVE SEATS 12 3.5 REMANUFACTURED VALVES. 12 3.6 INSULATION OF TEMPERATURE/PRES
19、SURE-RELIEF VALVES, TEMPERATURE-RELIEF VALVES, EXPANSION CONTROL VALVES AND COMBINATION HIGH-PRESSURE EXPANSION NON-RETURN VALVES 13 3.7 INSTALLATION INSTRUCTIONS . 14 SECTION 4 TEMPERATURE/PRESSURE-RELIEF VALVES 4.1 GENERAL 15 4.2 INLET AND DRAIN CONNECTIONS AND FLOW DIMENSIONS 15 4.3 VALVE SEAT AN
20、D DISC ASSEMBLIES. 17 4.4 SPRINGS PRESSURE-RELIEF FUNCTION . 17 4.5 TESTING 17 4.6 EASING GEAR TEST 20 4.7 AUXILIARY PRESSURE-RELIEF DEVICE. 21 4.8 PRESSURE-RELIEF FUNCTION 21 4.9 TEMPERATURE-RELIEF FUNCTION . 22 4.10 MARKING 23 SECTION 5 EXPANSION CONTROL VALVES 5.1 GENERAL 24 5.2 CONNECTIONS AND F
21、LOW DIMENSIONS. 24 5.3 VALVE SEAT AND DISC ASSEMBLIES. 25 5.4 SPRINGS. 25 5.5 TESTING 25 AS 1357.12009 4 5.6 EASING GEAR. 26 5.7 AUXILIARY PRESSURE-RELIEF DEVICE. 27 5.8 EXPANSION-CONTROL VALVE FUNCTION 27 5.9 MARKING 28 SECTION 6 NON-RETURN VALVES 6.1 GENERAL 29 6.2 INLET AND OUTLET CONNECTIONS 29
22、6.3 TESTING 29 6.4 FLOW RATE AND CLOSING PRESSURE. 30 6.5 ENDURANCE TEST 30 6.6 ORIENTATION 30 6.7 MARKING 30 SECTION 7 TEMPERATURE-RELIEF VALVES 7.1 GENERAL 31 7.2 INLET AND DRAIN CONNECTIONS AND FLOW DIMENSIONS 31 7.3 VALVE SEAT AND DISC ASSEMBLIES. 33 7.4 SPRINGS. 33 7.5 TESTING 33 7.6 EASING GEA
23、R TEST 34 7.7 AUXILIARY PRESSURE-RELIEF DEVICE. 35 7.8 TEMPERATURE-RELIEF FUNCTION . 35 7.9 PRESSURE SETTING 36 7.10 MARKING 36 SECTION 8 COMBINATION HIGH PRESSURE EXPANSION NON-RETURN VALVES (HPNR) 8.1 GENERAL 37 8.2 CONNECTIONS AND FLOW DIMENSIONS. 37 8.3 VALVE SEAT AND DISC ASSEMBLIES. 38 8.4 SPR
24、INGS. 38 8.5 TESTING 38 8.6 EASING GEAR. 39 8.7 EXPANSION CONTROL VALVE FUNCTION. 39 8.8 MARKING 39 SECTION 9 LEAK-PROTECTION DEVICES 9.1 GENERAL 40 9.2 DESIGN 40 9.3 PERFORMANCE REQUIREMENTS AND TEST METHODS 40 9.4 MARKING 40 APPENDICES A MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD. 41 B
25、NORMATIVE REFERENCES 43 C INSTRUMENTATIONACCURACY 45 D MEASUREMENT OF NOISE EMISSION . 46 E TORQUE TEST. 47 F LEAKAGE TEST 49 G EASING GEAR TEST FOR TEMPERATURE/PRESSURE-RELIEF VALVES, TEMPERATURE-RELIEF VALVES AND EXPANSION-CONTROL VALVES . 51 H AUXILIARY PRESSURE-RELIEF DEVICES TEST. 53 The Standa
26、rd is downloaded from Standard Sharing 5 AS 1357.12009 I RATED EXPANSION CAPACITY TEST FOR TEMPERATURE/PRESSURE- RELIEF VALVES AND EXPANSION-CONTROL VALVES. 55 J WATER DISCHARGE CAPACITY TEST FOR TEMPERATURE-PRESSURE- RELIEF VALVES AND TEMPERATURE-RELIEF VALVES 57 K OPENING PRESSURE TEST AND RESEAT
27、ING PRESSURE TEST FOR TEMPERATURE/PRESSURE-RELIEF VALVES AND EXPANSION-CONTROL VALVES. 59 L ENDURANCE (PRESSURE) TEST FOR TEMPERATURE/PRESSURE-RELIEF VALVES AND EXPANSION-CONTROL VALVES. 62 M OPENING AND RESEATING TEMPERATURE TESTS FOR TEMPERATURE/ PRESSURE-RELIEF VALVES AND TEMPERATURE-RELIEF VALVE
28、S . 64 N ENDURANCE (TEMPERATURE-RELIEF) TEST FOR TEMPERATURE/ PRESSURE-RELIEF VALVES AND TEMPERATURE-RELIEF VALVES . 66 O STEAM DISCHARGE CAPACITY TEST FOR TEMPERATURE/PRESSURE- RELIEF VALVES AND TEMPERATURE-RELIEF VALVES 69 P FLOW RATE TEST FOR NON-RETURN VALVES. 72 Q CLOSING PRESSURE TEST FOR NON-
29、RETURN VALVES 74 R ENDURANCE TEST FOR NON-RETURN VALVES . 75 S SAMPLING AND FREQUENCY PLANS FOR TEMPERATURE/PRESSURE- RELIEF VALVES. 77 T SAMPLING AND FREQUENCY PLANS FOR EXPANSION CONTROL VALVES. 80 U SAMPLING AND FREQUENCY PLANS FOR NON-RETURN VALVES. 82 V SAMPLING AND FREQUENCY PLANS FOR TEMPERAT
30、URE-RELIEF VALVES. 84 W SAMPLING AND FREQUENCY PLANS FOR COMBINATION HIGH-PRESSURE EXPANSION NON-RETURN (HPNR) VALVES 86 X SAMPLING AND FREQUENCY PLANS FOR LEAK-PROTECTION DEVICES 88 Y CLOSING TEST FOR LEAK-DETECTION DEVICES. 90 Z ENDURANCE TEST FOR LEAK-DETECTION DEVICES 91 AS 1357.12009 6 Standard
31、s Australia www.standards.org.au STANDARDS AUSTRALIA Australian Standard Valves primarily for use in heated water systems Part 1: Protection valves S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE This Standard sets out requirements for the design, construction, testing and performance of the
32、 following types of valves, within the range of DN 15 to DN 50: (a)Temperature/pressure-relief valves. (b)Expansion-control valves. (c)Non-return valves. (d)Temperature-relief valves. (e)Combination high-pressure expansion non-return valves (HPNR). (f)Leak-protection devices. The valves specified in
33、 this Standard are primarily intended for use in warm and hot water systems that are required to operate at (a) continuous operating temperatures not exceeding 85C; (b) temperatures under emergency conditions, not exceeding 99C; and (c) continuous working pressure not exceeding 1400 kPa. NOTE: For v
34、alves used with water heaters, which are intended to operate at temperatures above 99C (e.g., hot water boilers), see AS 1271. 1.2 APPLICATION Means for demonstrating compliance with this Standard shall be as given in Appendix A. 1.3 NORMATIVE REFERENCES Documents referred to in this Standard in nor
35、mative terms are listed in Appendix B. NOTE: Documents referenced for informative purposes are listed in the Bibliography. 1.4 DEFINITIONS For the purpose of this Standard, the definitions given in AS/NZS 3500.0 and those below apply. 1.4.1 Auxiliary pressure-relief device Pressure-operated device f
36、orming part of an expansion control valve, temperature-relief valve or temperature/pressure relief valve, which in the event of blockage of the drain outlet provides (a)expansion relief (expansion-control valves); The Standard is downloaded from Standard Sharing 7 AS 1357.12009 www.standards.org.au
37、 Standards Australia (b)safety relief (temperature-relief valves); or (c)expansion and safety relief (temperature/pressure-relief valves). 1.4.2 Distortion That which is obvious to the eye without resorting to dimensional checking. 1.4.3 Pressure NOTE: All pressures referred to in this document are
38、gauge pressures and not absolute pressures. 1.4.3.1 Opening pressure The pressure that first causes a valve to open. 1.4.3.2 Reseating pressure The pressure that first allows a valve to close. 1.4.3.3 Set pressure The pressure at which a valve is designated to operate. 1.4.4 Normative Forming an int
39、egral part of the Standard. 1.4.5 Rated capacity 1.4.5.1 Expansion control valve The maximum rate of heat energy to a water heater for which the pressure remains within defined limits, as the valve discharges the expanding water. 1.4.5.2 Relief valve The rate at which the input energy can be safely
40、dissipated by the discharge of hot water or steam through the valve. 1.4.6 Temperature 1.4.6.1 Opening temperature Temperature at the inlet of a valve that first causes it to open. 1.4.6.2 Reseating temperature Temperature at the inlet of a valve that first allows it to close. 1.4.6.3 Set temperatur
41、e Temperature at which a valve is designated to operate. 1.4.7 Manufacturers specification The documented record of the products attributes, issued by (a)the original manufacturer in the case of a new valve; or (b)the manufacturer in the case of a remanufactured valve whose specifications supersede
42、the original valves specifications. 1.4.8 Reconditioned component A component that is rendered suitable for normal service by acceptable reconditioning techniques. 1.4.9 Replacement components New components that are sourced from an original equipment or replacement manufacturer and produced in acco
43、rdance with the manufacturers specification for the valve model. AS 1357.12009 8 Standards Australia www.standards.org.au 1.4.10 Shall Indicates that a statement is mandatory. 1.4.11 Should Indicates a recommendation. 1.5 INSTRUMENTATION Instrument requirements shall be in accordance with Appendix C
44、. 1.6 MARKING Each valve complying with this Standard shall be marked with the following information: (a)The manufacturers name, trademark or symbol. In the case of a remanufactured valve, the original manufacturers name, trademark or symbol and licence number shall be removed. (b)Name or model numb
45、er of the valve or device. (c)Identification for traceability in the form of either of the following: (i)Batch identification. (ii)Individual serial number. (d)WaterMark. (e)Number of this Standard, i.e., AS 1357.1. (f)Identification of the inlet, drain, outlet or other special connections, or by an
46、 arrow indicating direction of flow (g)Additional markings for valves as specified in the appropriate clause. (h)In the case of a remanufactured valve, the words remanufactured valve in a prominent position immediately adjacent to the model number or name and with a minimum text height of 3 mm. Unle
47、ss otherwise specified, this information shall be permanently marked on the valve body (cast, stamped or engraved) or shown on a rating plate affixed to the valve. NOTES: 1The intention is to achieve permanency of the marking for the life of the product, or at least 5 years under normal conditions o
48、f use 2Manufacturers making a statement of compliance with this Australian Standard on a product, packaging, or promotional material related to that product are advised to ensure that such compliance is capable of being verified. The Standard is downloaded from Standard Sharing 9 AS 1357.12009 www.
49、standards.org.au Standards Australia S E C T I O N 2 M A T E R I A L S 2.1 GENERAL Materials used in the construction of valves and devices shall be suitable for the conditions of use (e.g., temperature, pressure, and compatibility with any adjacent component). Where construction or attachment involves brazing, the materials shall be suitable for brazing. 2.2 CONTAMINATION OF WATER Materials in contact with drinking wat