1、 DEUTSCHE NORM June 2006DIN EN ISO 16137 ICS 23.060.50 Supersedes: see below Industrial valves Check valves of thermoplastics materials (ISO 16137:2006) English version of DIN EN ISO 16137:2006-06 Industriearmaturen Rckflussverhinderer aus Thermoplasten (ISO 16137:2006) Englische Fassung DIN EN ISO
2、16137:2006-06 Together with DIN EN ISO 16135:2006-06, DIN EN ISO 16136:2006-06, DIN EN ISO 16138:2006-06, DIN EN ISO 16139:2006-06 and DIN EN ISO 21787:2006-06 supersedes DIN 3441-1:1989-05 and DIN 3442-1:1987-05 Document comprises 20 pages No part of this standard may be reproduced without prior pe
3、rmission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 11 www.din.de www.beuth.de !,o9t“11.06 9762281DIN EN ISO 16137:2006-06 2 National foreword This standard has b
4、een published in accordance with a decision taken by CEN/TC 69 to adopt, without alteration, International Standard ISO 16137 as a European Standard. The responsible German body involved in its preparation was the Normenausschuss Armaturen (Valves Standards Committee), Technical Committee NAA-69/16
5、Kunststoffarmaturen. Amendments This standard differs from DIN 3441-1:1989-05 and DIN 3442-1:1987-05 as follows: The content has been fully revised, re-structured, and harmonized with design standards for other types of valve. In particular, the scope has been extended to include valves of the mater
6、ials ABS, PE, PP, PVC-C and PVDF, for all materials, the pressure/temperature rating is now specified for the complete valve, nominal pressures PN 25, and classes 150 and 300 have been introduced, the number of possible valve end connections has been extended, material requirements have been harmoni
7、zed with those specified in European material standards, design characteristics and functional characteristics are now specified, and more test procedures are covered, Annex ZA (informative) on the relationship between EU Directive 97/23/EC (Pressure Equipment Directive) and this standard has been i
8、ncluded, and manufacturing requirements (testing of raw materials, permanent jointing by means of welding or cementing) and requirements regarding storage and transportation are now included. Previous editions DIN 3441-1: 1975-02, 1982-07, 1989-05 DIN 3442-1: 1980-10, 1987-05 EUROPEAN STANDARD NORME
9、 EUROPENNE EUROPISCHE NORM EN ISO 16137 March 2006 ICS 23.060.50 English Version Industrial valves - Check valves of thermoplastics materials (ISO 16137:2006) Robinetterie industrielle - Clapets de non-retour en matriaux thermoplastiques (ISO 16137:2006) Industriearmaturen - Rckflussverhinderer aus
10、Thermoplasten (ISO 16137:2006) This European Standard was approved by CEN on 3 March 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date l
11、ists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the res
12、ponsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ire
13、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart
14、, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16137:2006: EEN ISO 16137:2006 (E) 2 Foreword This document (EN ISO 16137:2006) has been prepared by Technical Committee CEN/TC 69 “Industrial valves”, t
15、he secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids”. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at
16、the latest by September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)
17、. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, C
18、zech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN ISO 16137:2006 (E) 3 Contents Page Foreword
19、 .2 1 Scope4 2 Normative references4 3 Terms and definitions .5 4 Requirements.7 4.1 Design.7 4.2 Materials .8 4.3 Pressure/temperature rating 8 4.4 Dimensions 9 4.5 Operation10 4.6 Functional characteristics10 4.7 Manufacture .11 4.8 Other requirements .11 5 Test procedures.12 5.1 Documentation of
20、test results12 5.2 Initial type tests .12 6 Declaration of compliance13 7 Designation 13 8 Marking and preparation for storage and transportation14 8.1 Marking and documentation 14 8.2 Preparation for storage and transportation15 Annex A (informative) Procurement information.16 Bibliography17 Annex
21、ZA (informative) Relationship between this International Standard and the Essential Requirements of EU Directive 97/23 EC (PED).18 EN ISO 16137:2006 (E) 4 1 Scope This International Standard specifies requirements for the design, functional characteristics and manufacture of check valves made of the
22、rmoplastics materials intended to allow the flow of liquid fluids 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 th
23、eir tests. This International Standard is applicable to valves 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
24、Special requirements can apply to pipe systems for water for human 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
25、of PN and Class PN 6, PN 10, PN 16, PN 25, and Class 150 and Class 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
26、 document (including any amendments) applies. ISO 7-1:1994, Pipe 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 designat
27、ion ISO 898-1:1999, Mechanical properties of fasteners made of 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
28、2: Test conditions and basic requirements ISO/TR 10358:1993, Plastics 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 EN ISO 16137:20
29、06 (E) 5 ISO 12092:2000, Fittings, valves and other piping system components, made of 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
30、pressure Test method ISO 12162:1995, Thermoplastics materials for pipes and fittings for pressure applications Classification and designation Overall service (design) coefficient ISO 15493:2003, Plastics piping systems for industrial applications Acrylonitrile-butadiene-styrene (ABS), unplasticized
31、poly(vinyl chloride) (PVC-U) and chlorinated poly(vinyl chloride) (PVC-C) Specifications 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 sys
32、tem Metric series EN 558-1:1995, Industrial valves Face-to-face and centre-to-face dimensions 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
33、2: Class-designated valves EN 736-1:1995, Valves Terminology Part 1: Definition of types 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
34、pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1267:1999, 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
35、 EN 12107:1997, Plastics piping systems Injection-moulded thermoplastics fittings, valves 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: P
36、ressure tests, test procedures and acceptance criteria Mandatory requirements 3 Terms 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 a
37、re given in ISO 15493, ISO 15494 and ISO 10931. 3.1 nominal size DN alphanumeric designation 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 mill
38、imetres, of the bore or outside diameter of the end connections ISO 6708:1995, definition 2.1 EN ISO 16137:2006 (E) 6 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 nomin
39、al size (DN) designated by the same PN number have the same mating dimensions appropriate to the type of end 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
40、standards. ISO 7268:1983, Clause 2 3.3 Class alphanumeric designation used for reference purposes related 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 foll
41、owing the word “Class” does not represent a measurable value and is not intended to be used for calculation 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 capabl
42、e of withstanding in service EN 805:2000, definition 3.1.1 NOTE EU Directive 97/23/EC (PED) designates PS (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:
43、1997, definition 3.2. 3.6 rating factor frrating factor used in the relationship between PMA and PN or Class and to calculate the PMA at temperatures other than 20 C EN ISO 16137:2006 (E) 7 4 Requirements 4.1 Design 4.1.1 Valve function Check valves in accordance with this International Standard sha
44、ll be suitable to prevent backflow. Check valves will not always operate in all installation positions. See 4.5. 4.1.2 Design characteristics 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
45、marked on the valve body; see Table 2, item 10; b) an automatic valve obturation by the reverse flow in the direction opposite 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 Type
46、s of valve end connection The types of valve end connection can be chosen from the following alternatives: butt fusion ends; spigot 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
47、 rings; flanged ends; wafer type ends; threaded ends; union ends. Other types of end connection are possible. All valve ends shall be an integral part of, or threaded onto, the valve body. Different types of end connection on one body are possible. EN ISO 16137:2006 (E) 8 4.2 Materials 4.2.1 Materia
48、ls 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; PVC-C; PVC-U; PVDF. If other body and bonnet/cover materials are used, the
49、manufacturer shall ensure that these materials fulfil adequate requirements (such as those contained in the above International Standards for the above materials). The bolting material between body and bonnet/cover shall be selected according to ISO 898-1. 4.2.2 Materials for other valve components The choice of the materials for the obturator and all other internal components shall be the responsibility of the manufacturer. Design of
