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1、BRITISH STANDARD BS EN 13997:2003 Irrigation techniques Connection and control accessories for use in irrigation systems Technical characteristics and testing The European Standard EN 13997:2003 has the status of a British Standard ICS 65.060.35 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct
2、30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13997:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 20 November 2003 BSI 20 November 2003 ISBN 0 580 42959 8 National foreword This British Standard is the official English
3、language version of EN 13997:2003. The UK participation in its preparation was entrusted to Technical Committee AGE/30, Irrigation and drainage equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-referen
4、ces The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British S
5、tandards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to
6、the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside
7、front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:4
8、0:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13997 November 2003 ICS 65.060.35 English version Irrigation techniques - Connection and control accessories for use in irrigation systems - Technical characteristics and testing Techniques dirrigati
9、on - Accessoires de raccord et de commande pour usage dans les systmes dirrigation - Caractristiques techniques et essais Bewsserungsverfahren - Verbindungs- und Steuerzubehr fr den Einsatz in Bewsserungssystemen - Technische Eigenschaften und Prfung This European Standard was approved by CEN on 19
10、September 2003. 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 lists and bibliographical references concerning such national standards may
11、be obtained on application to the Management Centre 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 responsibility of a CEN member into its own language and notified to the Managem
12、ent Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerl
13、and and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
14、 13997:2003 E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 2 Contentspage Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Technical characteristics and requirements.5 4.1Material and method of product
15、ion of the parts.5 4.2Corrosion resistance and protection against corrosion .5 4.2.1General5 4.2.2Steel parts.6 4.2.3Parts made of brass.6 4.2.4Parts made of Aluminium alloy 6 4.2.5Parts made of Polypropylene (PP) or Polyvinylchloride (PVC)6 4.3Dimensions.6 4.3.1General6 4.3.2Length.6 4.3.3Width.7 4
16、.3.4Height7 4.3.5Diameter7 4.4Smoothness of surface.7 4.5Coupling7 4.6Replacement of parts with spherical couplings in a plant 8 4.7Allowable operating pressure (nominal pressure).8 4.8Pressure loss8 5Marking .8 6Testing 9 6.1Construction and operating tests 9 6.1.1Sampling and test forms.9 6.1.2Tes
17、t procedure.9 6.1.3Test equipment 10 6.1.4Test conditions 10 6.2Carrying out of test10 6.2.1General10 6.2.2Dimensions.11 6.2.3Wall thickness (without corrosion protection) .11 6.2.4Total length of part 11 6.2.5Nominal length of part.11 6.2.6Bending angle 11 6.2.7Replacement.11 6.2.8Pressure loss11 6
18、.2.9Behaviour under nominal pressure .11 6.2.10Installation of line to be tested.13 6.2.11Supporting of empty part13 6.2.12Bending test .14 6.2.13Bulging test 14 6.2.14Effects of bulging test .14 Annex A (informative) Application for test of connection and control accessories according to EN 13997 F
19、orm 1.15 Annex B (informative) Results of test of connection and control accessories carried out according to EN 13997 Form 2.17 Bibliography20 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 3 Foreword This document (EN 13
20、997:2003) has been prepared by Technical Committee CEN/TC 334 “Irrigation techniques”, the secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2004, and conf
21、licting national standards shall be withdrawn at the latest by May 2004. Annexes A and B are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic
22、, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN
23、13997:2003 (E) 4 1 Scope This standard describes the technical characteristics and requirements of hydraulic connection and control accessories to ensure a sufficient mechanical resistance for practical use, and specifies the relevant testing methods. It applies to accessories made of steel, brass,
24、aluminium, Polypropylene, Polyethylene or PVC for use in irrigation systems up to a diameter of 250 mm. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the
25、text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to ap
26、plies (including amendments). EN 10240, Internal and/or external protective coatings for steel tubes - Specification for hot dip galvanized coatings applied in automatic plants. ISO 209-1, Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 1: Chemical composition.
27、 ISO 209-2, Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 2: Forms of products. ISO 3522, Cast aluminium alloys Chemical composition and mechanical properties. ISO 11678, Agricultural irrigation equipment - Aluminium irrigation tubes. 3 Terms and definitions
28、For the purposes of this European Standard, the following terms and definitions apply. 3.1 connection accessory for irrigation portable device with coupling parts (such as threads, flanges or quick couplings) which give a safe connection with other parts or with a pipe with couplings of the same kin
29、d 3.2 quick coupling accessory connection accessory which allows a connection in a few seconds mostly without a tool and which can be loosened in the same easy way 3.3 moulded part moulded, welded or formed parts for connection of parts of an irrigation plant laid down in straight or modified direct
30、ion with same or different parameters such as bends, valves (i. e. inline gate valves), online hydrants, opening elbow, pump connection bow, T-pieces, reduced cross, diameter reduction parts, thread pieces, stabilizers, risers, end plugs (male and female). See Figure 1. Licensed Copy: sheffieldun sh
31、effieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 5 a) elbow b) T-piece c) diameter reduction d) riser Figure 1 Examples for connection accessories (symbols) 3.4 control accessory parts which influence the water pressure and the direction of flow or give
32、 data for influence in an irrigation plant such as flowmeters, pressure gauges, filters, valves (i. e. inline gate valves), online hydrants, pressure reduction valves, shot valves, control units, non return valves, air escape valves, emptying valves. See Figure 2. a) Control unit b) filter c) flow m
33、eter d) pressure gauge e) pressure reduction valve f) non return valve g) shot valve Figure 2 Examples for control accessories (symbols) 4 Technical characteristics and requirements 4.1 Material and method of production of the parts The methods of production depending on the materials are listed in
34、Table 1. Table 1 Materials and methods of production MaterialMethod of production SteelWelded or moulded BrassWelded or moulded Aluminium alloyWelded or moulded Polypropylene (PP)Extruded Polyethylene (PE)Extruded Polyvinylchloride (PVC)Extruded 4.2 Corrosion resistance and protection against corros
35、ion 4.2.1 General Connection and control accessories shall be corrosion resistant against the application. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 6 4.2.2 Steel parts Parts made of steel plate have to be hot dip zin
36、c galvanized according to EN 10240. Parts made of moulded steel have to be galvanized or covered with an anticorrosion colour. 4.2.3 Parts made of brass Parts made of brass are resistant against irrigation water without abrasive and or chemical components. The use with solutions of fertilizer and or
37、 agents for plant protection shall be granted by the manufacturer. 4.2.4 Parts made of Aluminium alloy Parts made of Aluminium alloy shall meet the requirements for tubes given in ISO 209-1, ISO 209-2, ISO 3522 and ISO 11678. 4.2.5 Parts made of Polypropylene (PP) or Polyvinylchloride (PVC) No speci
38、fic requirements (parts made of such material are resistant against the chemical influence of soil and water). 4.3 Dimensions 4.3.1 General If fitted with quick couplings it is to distinguish between the nominal length (lN) and the overall length (lO) of accessories. The dimensions of elbows are to
39、be determined along and at the end of the centre line. 4.3.2 Length 4.3.2.1 Nominal length The nominal length of a part is declared by the manufacturer and is measured after connection of two identical parts as the distance between two similar points on both parts. (The measurement should be carried
40、 out under nominal pressure at (20 5)C. Deviation of 0 % to 0,4 % is allowable. See Figure 3). 4.3.2.2 Overall length The overall length of a part fitted with fittings or quick couplings is the total length of a part including coupling parts. See Figure 3. Licensed Copy: sheffieldun sheffieldun, na,
41、 Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 7 Key lNnominal length lOoverall length Figure 3 Nominal and overall length of parts fitted with quick couplings 4.3.3 Width The width is to be determined in the same way as described in 4.3.2. 4.3.4 Height The height
42、is to be determined in the same way as described in 4.3.2. 4.3.5 Diameter The diameter is to be determined without coupling parts. The diameter of coupling parts is to determined separately. It is to distinguish between inner diameter (dI), outside diameter (do) or nominal diameter (dN). 4.4 Smoothn
43、ess of surface The inner side of the wall of connection and control accessories shall be smooth; welding residue and flashes are allowed to protrude not more than 2 mm. The protective coating on steel pipes shall have an adhesion strong enough to prevent peeling due to hits caused during transportat
44、ion or general use. The adhesion of the coating should also avoid hairline cracks caused by the test pressure. 4.5 Coupling Three kinds of couplings are usually used: Spherical coupling with O ring seal. Closed mechanically; Coupling with lip type seal.Closed mechanically; Coupling with lip type sea
45、l.Closed by water pressure. For special application lip type couplings may be required to be loose at pressures below 50 kPa by agreement. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:40:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13997:2003 (E) 8 The maximum bending angle of adjac
46、ent elements in degrees shall be declared by the manufacturer in his documentation. The coupling must be water-tight if filled with water under nominal pressure. If quick coupling pipelines are used as suction line the couplings must be water and air-tight. The couplings must withstand opening and c
47、losing for 2000 times. 4.6 Replacement of parts with spherical couplings in a plant The replacement of one part in the middle of a pipeline with 100 m length shall be possible without moving the whole pipeline in longitudinal direction. 4.7 Allowable operating pressure (nominal pressure) The nominal
48、 pressure of parts is declared by the manufacturer. The operating pressure in accessories shall not exceed the nominal pressure of those parts. The selection of accessories shall be made taking into account possible pressure shocks (water hammer). 4.8 Pressure loss The manufacturer shall declare the
49、 head loss at nominal pressure or at nominal flow rate. If the head loss is to be determined without a standardized test method existing the used test method must be described very carefully to enable further measurement under comparable conditions. 5 Marking Connection and control accessories according to this standard may be marked with the name or the sign of the producer in connection with length, diameter and nominal pressure as shown in Figure
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