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1、AS 1357.12009 Australian StandardValves 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 Australia on
2、 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 Australia
3、)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 Manufacturers Associa
4、tionNew 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 that contributed
5、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 maintain their curren
6、cy,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periodically reviewed,and new editions are published.Between editions,amendments may be issued.Standards may also be withdrawn.It is important that readers assure themselves they are using a current Standard,which should include any amendments that may have been published since
7、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.auStandards Australia welcomes suggestions for improvements,and encourages readers to notify us immediately of any apparent in
8、accuracies or ambiguities.Contact us via email at mailstandards.org.aumailstandards.org.au,or write to Standards Australia,GPO Box 476,Sydney,NSW 2001.AS 1357.12009 Australian StandardValves primarily for use in heated water systems Part 1:Protection valves Originated as AS B2711968.AS B2711968 revi
9、sed 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 copied in any form or by any means,electronicor mechanical,including photocopying,without th
10、e 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 members of the Joint Standards Australia/Standards New Zealand Committee WS-026,Valves Primarily for Us
11、e 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 plumbing and drainage products,Part 476:Heated water systemsLeak protection device.After consultation with stake
12、holders 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 objective of this Standard is to provide manufacturers with design,materials and performance requirements for the prot
13、ection of valves.Other Standards covering heated water system valves include the following:AS1357 Valves primarily for use in heated water systems 1357.2 Part 2:Control valves 4032 Water supplyValves for the control of heated water supply temperatures 4032.1 Part 1:Thermostatic mixing valvesMaterial
14、s 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 replacement ofthermostatic mixing valves,tempering valves and end of line temperature control devices The terms normative and
15、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 informative appendix is only for information and guidance.Statements expressed in mandatory terms in notes to tables and figures
16、 are deemed to be requirements of this Standard.标准分享网 w w w.b z f x w.c o m 免费下载 3 AS 1357.12009CONTENTS PageSECTION 1 SCOPE AND GENERAL 1.1 SCOPE.6 1.2 APPLICATION.6 1.3 NORMATIVE REFERENCES.6 1.4 DEFINITIONS.6 1.5 INSTRUMENTATION.8 1.6 MARKING.8SECTION 2 MATERIALS 2.1 GENERAL.9 2.2 CONTAMINATION O
17、F WATER.9 2.3 CORROSION-RESISTANT METALLIC MATERIALS.9 2.4 COPPER.9 2.5 COPPER ALLOY.9 2.6 DEZINCIFICATION-RESISTANT(DR)COPPER ALLOY.9 2.7 STAINLESS STEEL.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
18、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/PRESSURE-RELIEF VALVES,TEMPERATURE-RELIEF VALVES,EXPANSION CONTROL VALVES AND COMBINATION HIGH-PRESSURE EXPANSION NON-RETURN VALVES.13 3.7 INSTALLATION I
19、NSTRUCTIONS.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 AND 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-
20、RELIEF FUNCTION.21 4.9 TEMPERATURE-RELIEF FUNCTION.22 4.10 MARKING.23SECTION 5 EXPANSION CONTROL VALVES 5.1 GENERAL.24 5.2 CONNECTIONS AND FLOW DIMENSIONS.24 5.3 VALVE SEAT AND DISC ASSEMBLIES.25 5.4 SPRINGS.25 5.5 TESTING.25AS 1357.12009 4 5.6 EASING GEAR.26 5.7 AUXILIARY PRESSURE-RELIEF DEVICE.27
21、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 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 IN
22、LET 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 GEAR TEST.34 7.7 AUXILIARY PRESSURE-RELIEF DEVICE.35 7.8 TEMPERATURE-RELIEF FUNCTION.35 7.9 PRESSURE SETTING.36 7.10 MARKING.36SECTION 8 COMBINATION HIGH PRESSURE EXPANSION
23、 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 SPRINGS.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 R
24、EQUIREMENTS AND TEST METHODS.40 9.4 MARKING.40 APPENDICES A MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD.41 B 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,
25、TEMPERATURE-RELIEF VALVES AND EXPANSION-CONTROL VALVES.51 H AUXILIARY PRESSURE-RELIEF DEVICES TEST.53 标准分享网 w w w.b z f x w.c o m 免费下载 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 TEMPERATUR
26、E-PRESSURE-RELIEF VALVES AND TEMPERATURE-RELIEF VALVES.57 K OPENING PRESSURE TEST AND RESEATING 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 RESEATIN
27、G TEMPERATURE TESTS FOR TEMPERATURE/PRESSURE-RELIEF VALVES AND TEMPERATURE-RELIEF VALVES.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
28、.69 P FLOW RATE TEST FOR NON-RETURN VALVES.72 Q CLOSING PRESSURE TEST FOR NON-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 PL
29、ANS FOR NON-RETURN VALVES.82 V SAMPLING AND FREQUENCY PLANS FOR TEMPERATURE-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 E
30、NDURANCE TEST FOR LEAK-DETECTION DEVICES.91 AS 1357.12009 6 Standards 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 requir
31、ements for the design,construction,testing and performance of the 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(
32、HPNR).(f)Leak-protection devices.The valves specified in 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 work
33、ing pressure not exceeding 1400 kPa.NOTE:For valves 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 Docum
34、ents referred to in this Standard in normative 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-relie
35、f device Pressure-operated device forming part of an expansion control valve,temperature-relief valve or temperature/pressure relief valve,which in the event of blockage of the drain outletprovides(a)expansion relief(expansion-control valves);标准分享网 w w w.b z f x w.c o m 免费下载 7 AS 1357.12009www.stand
36、ards.org.au 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 a
37、re 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 inte
38、gral 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 diss
39、ipated 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 temperature Tempe
40、rature 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 the original
41、 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 accordance with th
42、e 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.1.6 MARKING Each
43、 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 number of the valve or devic
44、e.(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 arrow indicating direction of flow
45、(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.Unless otherwise specified,this information
46、 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 of use 2Manufacturers making a statement of com
47、pliance 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.标准分享网 w w w.b z f x w.c o m 免费下载 9 AS 1357.12009www.standards.org.au Standards Australia S E C T I O N 2 M A T E R I A
48、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 CONTAMINATIO
49、N OF WATER Materials in contact with drinking water shall comply with AS/NZS 4020.2.3 CORROSION-RESISTANT METALLIC MATERIALS The parts of the valves in contact with water shall be made from corrosion-resistant materials.For the purpose of this Standard,the following materials are deemed to be corros
50、ion resistant:(a)Copper,as specified in Clause 2.4.(b)Copper alloy,as specified in Clause 2.5 and Clause 2.6.(c)Stainless steel,as specified in Clause 2.7.(d)Material for springs,as specified in Clause 2.10(c).(e)Other materials,as specified in Clause 2.10.2.4 COPPER Copper shall comply with the fol