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1、 Reference number ISO 16137:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 16137 First edition 2006-03-15 Industrial valves Check valves of thermoplastics materials Robinetterie industrielle Clapets de non-retour en matriaux thermoplastiques Copyright International Organization for Standardization Prov
2、ided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes lic
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5、een taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may be rep
6、roduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22
7、 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007
8、06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Requirements 4 4.1 Design 4 4.2 Materials 5 4.3 Pressure/temperature rati
9、ng 5 4.4 Dimensions 6 4.5 Operation. 7 4.6 Functional characteristics . 7 4.7 Manufacture. 8 4.8 Other requirements. 8 5 Test procedures 9 5.1 Documentation of test results. 9 5.2 Initial type tests. 9 6 Declaration of compliance. 10 7 Designation . 10 8 Marking and preparation for storage and trans
10、portation. 11 8.1 Marking and documentation 11 8.2 Preparation for storage and transportation. 12 Annex A (informative) Procurement information 13 Bibliography. 14 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972
11、545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
12、bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental
13、and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directive
14、s, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies c
15、asting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16137 was prepared by the European Committee for Standardization (CEN) Technical C
16、ommittee CEN/TC 69, Industrial valves, in collaboration with ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 7, Valves and auxiliary equipment of plastics materials, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agr
17、eement). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 16137:2006(
18、E) ISO 2006 All rights reserved 1 Industrial valves Check valves of thermoplastics materials 1 Scope This International Standard specifies requirements for the design, functional characteristics and manufacture of check valves made of thermoplastics materials intended to allow the flow of liquid flu
19、ids through the valve in one direction only and to prevent backflow, their connection to the pipe system, the body materials and their pressure/temperature rating between 40 C and + 120 C, for a lifetime of 25 years, and also specifies their tests. This International Standard is applicable to valves
20、 to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. NOTE 1 Industrial pipe systems also include systems for water supply for general purposes, drainage and sewerage. NOTE 2 Special requirements can apply to pipe systems for water for h
21、uman consumption. This International Standard is concerned with the range of DN DN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 and DN 600 and the range of PN and Class PN 6, PN 10, PN 16, PN 25, and Class 150 and C
22、lass 300. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7-1:1994, Pi
23、pe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation ISO 228-1:2000, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation ISO 898-1:1999, Mechanical properties of fasteners made of
24、 carbon steel and alloy steel Part 1: Bolts, screws and studs ISO 8659:1989, Thermoplastic valves Fatigue strength Test method ISO 9393-2:2005, Thermoplastics valves for industrial applications Pressure test methods and requirements Part 2: Test conditions and basic requirements ISO/TR 10358:1993, P
25、lastics pipes and fittings Combined chemical-resistance classification table ISO 10931:2005, Plastics piping systems for industrial applications Poly(vinylidene fluoride) (PVDF) Specifications for components and the system Copyright International Organization for Standardization Provided by IHS unde
26、r license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) 2 ISO 2006 All rights reserved ISO 12092:2000, Fittings, valves and other piping system components, made o
27、f unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) acrylonitrile-butadiene-styrene (ABS) and acrylonitrile-styrene-acrylester (ASA) for pipes under pressure Resistance to internal pressure Test method ISO 12162:1995, Thermoplastics materials for pipes and fittings
28、 for pressure applications Classification and designation Overall service (design) coefficient ISO 15493:2003, Plastics piping systems for industrial applications Acrylonitrile-butadiene-styrene (ABS), unplasticized poly(vinyl chloride) (PVC-U) and chlorinated poly(vinyl chloride) (PVC-C) Specificat
29、ions for components and the system Metric series ISO 15494:2003, Plastics piping systems for industrial applications Polybutene (PB), polyethylene (PE) and polypropylene (PP) Specifications for components and the system Metric series EN 558-1:1995, Industrial valves Face-to-face and centre-to-face d
30、imensions of metal valves for use in flanged pipe systems Part 1: PN-designated valves EN 558-2:1995, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems Part 2: Class-designated valves EN 736-1:1995, Valves Terminology Part 1: Definition of t
31、ypes of valves EN 736-2:1997, Valves Terminology Part 2: Definition of components of valves EN 736-3:1999, Valves Terminology Part 3: Definition of terms EN 1092-1:2001, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1267
32、:1999, Valves Test of flow resistance using water as test fluid EN 1759-1:2004, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS to 24 EN 12107:1997, Plastics piping systems Injection-moulded thermoplastics fittings, v
33、alves and ancillary equipment Determination of the long-term hydrostatic strength of thermoplastics materials for injection moulding of piping components EN 12266-1:2003, Industrial valves Testing of valves Part 1: Pressure tests, test procedures and acceptance criteria Mandatory requirements 3 Term
34、s and definitions For the purposes of this document, the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3 and the following apply. NOTE Other terms and definitions relative to thermoplastics materials are given in ISO 15493, ISO 15494 and ISO 10931. 3.1 nominal size DN alphanumeric des
35、ignation of size for components of a pipework system, which is used for reference purposes, comprising the letters DN followed by a dimensionless whole number which is indirectly related to the physical size, in millimetres, of the bore or outside diameter of the end connections ISO 6708:1995, defin
36、ition 2.1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) ISO 2006 All rights
37、 reserved 3 3.2 nominal pressure PN numerical designation relating to pressure that is a convenient round number for reference purposes NOTE 1 It is intended that all equipment of the same nominal size (DN) designated by the same PN number have the same mating dimensions appropriate to the type of e
38、nd connections. NOTE 2 The permissible working pressure depends upon materials, design and working temperature and is to be selected from the pressure/temperature rating tables in corresponding standards. ISO 7268:1983, Clause 2 3.3 Class alphanumeric designation used for reference purposes related
39、to a combination of mechanical and dimensional characteristics of a component of a pipework system, which comprises the word “Class” followed by a dimensionless whole number NOTE The number following the word “Class” does not represent a measurable value and is not intended to be used for calculatio
40、n purposes except where specified in the relevant standard. 3.4 allowable maximum operating pressure PMA maximum pressure occurring from time to time, including surge, that a component is capable of withstanding in service EN 805:2000, definition 3.1.1 NOTE EU Directive 97/23/EC (PED) designates PS
41、(maximum allowable pressure) irrespective of temperature. The values of PMA and PS are identical at 20 C. 3.5 trim inside parts of the valve in contact with the fluid NOTE Adapted from EN 736-2:1997, definition 3.2. 3.6 rating factor fr rating factor used in the relationship between PMA and PN or Cl
42、ass and to calculate the PMA at temperatures other than 20 C Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33 MDTNo reproduction or networking permitted without license f
43、rom IHS -,-,- ISO 16137:2006(E) 4 ISO 2006 All rights reserved 4 Requirements 4.1 Design 4.1.1 Valve function Check valves in accordance with this International Standard shall be suitable to prevent backflow. Check valves will not always operate in all installation positions. See 4.5. 4.1.2 Design c
44、haracteristics Check valves shall have the following design characteristics: a) an automatic valve opening by the hydraulic forces of the flow in the direction of the arrow marked on the valve body; see Table 2, item 10; b) an automatic valve obturation by the reverse flow in the direction opposite
45、to this arrow marking. The hydraulic forces may be assisted by spring operation. All other design characteristics shall be the responsibility of the manufacturer. 4.1.3 Types of valve end connection The types of valve end connection can be chosen from the following alternatives: butt fusion ends; sp
46、igot ends for cementing or for welding; socket ends for electro-fusion; socket ends for heated tool welding; socket ends for cementing; socket ends for/with elastomeric seal rings; flanged ends; wafer type ends; threaded ends; union ends. Other types of end connection are possible. All valve ends sh
47、all be an integral part of, or threaded onto, the valve body. Different types of end connection on one body are possible. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 06:31:33
48、 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16137:2006(E) ISO 2006 All rights reserved 5 4.2 Materials 4.2.1 Materials for the shell The valve body and bonnet/cover materials may be selected from ISO 15493 or ISO 15494 or ISO 10931, and shall be in accordance with the requirements of the relevant above International Standard: ABS; PE; PP;