1、December 2015English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.220.10!%Ir/“2387912www.din.deD
2、IN EN 16712-2Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment Part 2: Pick-up tubes;English version EN 16712-2:2015,English translation of DIN EN 16712-2:2015-12Tragbare Gerte zum Ausbringen von Lschmitteln, die mit Feuerlschpumpen gefrde
3、rt werden Tragbare Schaumgerte Teil 2: Ansaugschlauch;Englische Fassung EN 16712-2:2015,Englische bersetzung von DIN EN 16712-2:2015-12Equipement portable de projection dagents dextinction aliment par des pompes usage incendie Equipements mousse portables Partie 2: Flexibles daspiration;Version angl
4、aise EN 16712-2:2015,Traduction anglaise de DIN EN 16712-2:2015-12SupersedesDIN 14819:2011-01www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 11 pages11.15 DIN EN 16712-2:2015-12 2 A comma is used as th
5、e decimal marker. National foreword This document (EN 16712-2:2015) has been prepared by Technical Committee CEN/TC 192 “Fire and Rescue Service Equipment” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Feuerwehrwesen (DIN Standard
6、s Committee Firefighting and Fire Protection), Working Committee NA 031-04-04 AA Schluche und Armaturen SpA zu CEN/TC 192/WG 1 und WG 8. A pick-up tube for projecting extinguishing agents sucks up foam concentrate or additives from a reservoir, and consists of a semi-rigid transparent tube connected
7、 at one end to the foam concentrate inlet of an inductor or proportioning device. This European Standard does not contain requirements specifying the type of coupling to be connected to hoses as no European Standard dealing with the connection of firefighting hoses currently exists. Orders for coupl
8、ings are thus subject to individual agreement between parties. To ensure compatiblity with all fire extinguishing components in Germany, all previous provisions laid down in DIN 14819 have been modified, and connection of a DN 20 pick-up to a type D suction coupling as in DIN 14301 has been agreed.
9、Amendments This standard differs from DIN 14819:2011-01 as follows: a) the national standard has been adopted as a European Standard, for which DIN 14819 had served as a basis; b) all references to national standards have been deleted; c) terms and designations have been revised; d) pick-up tubes ha
10、ving a nominal diameter greater than DN 20 (20 mm internal diameter) are now included; e) requirements and tests have been revised; f) the text of the standard has been editorially revised. Previous editions DIN 14819: 1967-01, 1982-10, 2011-01 National Annex NA (informative) Bibliography DIN 14301,
11、 Aluminium alloy delivery and suction coupling, type D, nominal pressure PN 16 EN 16712-2 September 2015 ICS 13.220.10 English Version Portable equipment for projecting extinguishing agentssupplied by fire fighting pumps - Portable foam equipment -Part 2: Pick-up tubesEquipement portable de projecti
12、on dagentsdextinction aliment par des pompes usage incendie -Equipements mousse portables - Partie 2: FlexiblesdaspirationTragbare Gerte zum Ausbringen von Lschmitteln, diemit Feuerlschpumpen gefrdert werden - TragbareSchaumgerte - Teil 2: AnsaugschlauchThis European Standard was approved by CEN on
13、1 August 2015. 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 b
14、e obtained on application to the CEN-CENELEC 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
15、the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, I
16、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any m
17、eans reserved worldwide for CEN national Members. Ref. No. EN 16712-2:2015 EEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG2 Contents PageEuropean foreword . 3 1 Scope 4 2 Terms and definitions . 4 3
18、 Designation 4 4 Requirements . 4 4.1 Components, dimensions and mass . 4 4.2 Material . 7 4.3 Connection to the inductor/proportioning device . 7 4.4 Tightness 8 4.5 Cross section . 8 4.6 Collapsing . 8 Bibliography 9 DIN EN 16712-2:2015-12 EN 16712-2:2015 (E) 3 European foreword This document (EN
19、16712-2:2015) has been prepared by Technical Committee CEN/TC 192 “Fire and Rescue Service Equipment”, the secretariat of which is held by BSI. 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 Marc
20、h 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rig
21、hts. EN 16712 consists of the following parts, under the general title “Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment”: Part 1: Inductors PN 16; Part 2: Pick-up tubes; Part 3: Low and medium expansion hand-held foam branchpipes PN 16;
22、Part 4: High expansion foam generators PN 16 . According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, For
23、mer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16712-2:2015-12EN 16712-2:2015 (E
24、)N1) National footnote: In preparation. N1)4 1 Scope 1.1 This European Standard specifies performance requirements and test methods for pick-up tubes. This European Standard applies to pick-up tubes from DN 20 to DN 50 which are used for the suction of foam concentrate or additives and defines their
25、 requirements and test procedures. Pick-up tubes are especially used with inductors in accordance with EN 16712-1. NOTE Pick-up tubes can also be used for the suction of other substances (e.g. absorbents). 1.2 This European Standard is not applicable to pick-up tubes which have been manufactured bef
26、ore its date of publication as European Standard. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 pick-up tube device through which foam concentrate, additives or other substances are transferred from a reservoir to an inductor or other propo
27、rtioning device 3 Designation The designation of pick-up tubes in compliance with EN 16712-2 comprises name of the equipment, reference to EN 16712-2, nominal diameter, total length. EXAMPLE A pick-up tube with a nominal diameter of 38 mm and a total length of 1 500 mm is designated as follows: Pick
28、-up tube EN 167122 DN 38 1 500 4 Requirements 4.1 Components, dimensions and mass The pick-up tube consists of a semi-rigid transparent tube connectable at one end to the foam concentrate inlet of an inductor or proportioning device (see Figure 1). At the other end, it should remain free or be equip
29、ped with a riser metallic or plastic pipe, or a strainer, with or without foot valve, or DIN EN 16712-2:2015-12 EN 16712-2:2015 (E) 5 a coupling, or any combinations of the above elements. It is recommended that the length of the flexible section (semi rigid translucent tube) and of the rigid sectio
30、n (riser pipe) be specified by the user/purchaser to meet their specific requirements. NOTE Riser pipes have proved to be more advantageous than a free tube end because their mass helps avoid the pick-up tube slipping out of the foam concentrate or additive container. The above elements should take
31、into account the total length indicated in Table 2 and shall not reduce the performance of the inductor or proportioning device, e.g. by a smooth internal surface of the semi rigid tube. The nominal diameters shall be in accordance with Table 1. Table 1 Nominal diameters Nominal flow rate of proport
32、ioning or inducting device DN 800 l/min 20 mm 800 l/min to 2 000 l/min 25 mm to 38 mm 2 000 l/min 38 mm Dimensions and mass of pick-up tubes DN 20 shall be in accordance with Table 2 and Figure 1. For pick-up tubes larger than DN 20 dimensions and mass shall be agreed between the manufacturer and th
33、e user. Table 2 Total length and maximum mass of pick-up tube DN 20 Pick-up tube DN 20 Total length (L) Maximum mass mm kg Pick-up tube EN 167122 DN 20 - 1 500 1 500 50 1 Pick-up tube EN 167122 DN 20 - 2 500 2 500 50 2 DIN EN 16712-2:2015-12EN 16712-2:2015 (E)6 Dimensions in millimetres Key 1 connec
34、tion to inductor or proportioning device 2 semi rigid translucent tube 3 riser pipe d nominal diameter L total length Figure 1 Dimensions of a pick-up tube Verification Measurement of dimensions and mass. The riser pipe end shall not be cut at sharp angle (see Figure 2, a) to avoid injury to the use
35、r. Examples of permitted riser ends are given in Figure 2, b). DIN EN 16712-2:2015-12 EN 16712-2:2015 (E) 7 Symbol = ISO 7010-W022 a) Riser pipe end not permitted b) Examples of permitted riser pipe ends Figure 2 Riser pipe end Verification Visual inspection. 4.2 Material The semi rigid tube shall b
36、e made of thermoplastic material, optionally with reinforcement (e.g. spiral wire or fibre reinforced). The material of the tube shall be translucent in order to view the presence of the foam concentrate or additive inside the semi rigid tube and/or flow disturbances. Verification Visual inspection
37、and supplier material certificate. The resistance to foam concentrate or additive shall be agreed between the supplier and the user. The pick-up tube should be UV-resistant. Verification Material certificates. 4.3 Connection to the inductor/proportioning device The wall thickness shall be selected i
38、n such a way that the tube is permanently fixed to the coupling. A tube clamp or other convenient binding mechanism is permitted. A suitable permanent adhesive may be used. DIN EN 16712-2:2015-12EN 16712-2:2015 (E)8 Verification The tube shall be attached to the connector in such a way that its posi
39、tion on the connector does not change. On the tube heated up to a temperature of (55 3) C, a traction force of (100 5) N is applied for 15 s to the coupling-free end of the tube. After 15 s, check by visual inspection that the position of the tube on the connector has not moved. 4.4 Tightness During
40、 a one-minute test, the pressure shall not change. Verification At room temperature (23 5) C, a pressure of (- 0,8 0,1) bar shall be maintained inside the tube for 15 s. Check that the pressure does not deviate more than 0,1 bar. 4.5 Cross section During the test below, the outer diameter of the sem
41、i rigid tube shall not be more than 20 % smaller at any point, when compared to the original outer diameter. Verification The diameter of the semi rigid tube shall be measured after 15 s at a temperature of 55 C and a pressure of - 0,8 bar. 4.6 Collapsing During the test below, the semi rigid tube s
42、hall not collapse. Verification The semi rigid tube, cooled down to a temperature of (-15 2) C for 30 min, is bent by 180 with a bending inside diameter of DN x 10. Check by visual inspection that the semi rigid tube does not collapse. DIN EN 16712-2:2015-12 EN 16712-2:2015 (E) 9 Bibliography 1 EN 1
43、568-1, Fire extinguishing media Foam concentrates Part 1: Specification for medium expansion foam concentrates for surface application to water-immiscible liquids 2 EN 1568-2, Fire extinguishing media Foam concentrates Part 2: Specification for high expansion foam concentrates for surface applicatio
44、n to water-immiscible liquids 3 EN 1568-3, Fire extinguishing media Foam concentrates Part 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquids 4 EN 1568-4, Fire extinguishing media Foam concentrates Part 4: Specification for low expansion foam con
45、centrates for surface application to water-miscible liquids 5 EN 16712-1, Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment Part 1: Inductors PN 16 6 EN ISO 7010, Graphical symbols Safety colours and safety signs Registered safety signs (ISO 7010) DIN EN 16712-2:2015-12EN 16712-2:2015 (E)
