1、December 2015 English price group 11No 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!%Ir0“2387913www.din.d
2、eDIN EN 16712-3Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment Part 3: Low and medium expansion hand-held foam branchpipes PN 16;English version EN 16712-3:2015,English translation of DIN EN 16712-3:2015-12Tragbare Gerte zum Ausbringen v
3、on Lschmitteln, die mit Feuerlschpumpen gefrdert werden Tragbare Schaumgerte Teil 3: Schwer- und Mittelschaumrohre PN 16;Englische Fassung EN 16712-3:2015,Englische bersetzung von DIN EN 16712-3:2015-12Equipement portable de projection dagents dextinction aliment par des pompes usage incendie Equipe
4、ments mousse portables Partie 3: Lances mousse main PN 16 bas et moyen foisonnement;Version anglaise EN 16712-3:2015,Traduction anglaise de DIN EN 16712-3:2015-12SupersedesDIN 14366:2011-01www.beuth.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language
5、 original shall be considered authoritative.11.15DIN EN 16712-3:2015-12 2 A comma is used as the decimal marker. National foreword This document (EN 16712-3:2015) has been prepared by Technical Committee CEN/TC 192 “Fire and Rescue Service Equipment” (Secretariat: BSI, United Kingdom). The responsib
6、le German body involved in its preparation was DIN-Normenausschuss Feuerwehrwesen (DIN Standards 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. Handheld foam branchpipes are used to expand foam water solution by
7、the addition of air and to project the foam onto a fire or fire risk. Amendments This standard differs from DIN 14366:2011-01 as follows: a) the national standard has been converted into a European Standard; b) all references to national standards have been deleted; c) terms and definitions have bee
8、n revised and supplemented; d) the designation has been revised; e) requirements and tests have been revised; f) additional requirements for the instruction and maintenance handbook have been specified; g) the specifications for marking have been revised; h) specifications for colour coding have bee
9、n included; i) a datasheet for handheld foam branchpipes has been included; j) the text of the standard has been revised in form and substance. Previous editions DIN 14366-1: 1984-10 DIN 14366: 2011-01 DIN EN 16712-3:2015-12 3 National Annex NA (informative) Couplings This European Standard does not
10、 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 couplings are thus subject to individual agreement between parties. To ensure the compatibility of all components of w
11、ater systems for fire extinguishing in Germany, these have been brought in line with the specifications from DIN 14366, the standard that has been valid until now. The couplings are listed in Table NA.1 below. Table NA.1 Couplings Type Fixed couplingaS 1 C or D S 2 C S 4 B S 8 B M 0,5 D M 1 C or D M
12、 2 C M 4 B M 8 B aAs in DIN 14306, DIN 14307-1 or DIN 14308-1. DIN EN 16712-3:2015-12 4 National Annex NB (informative) Bibliography DIN 14306, Aluminium alloy solid coupling type D for pressure and suction purposes Nominal pressure 16 DIN 14307-1, Aluminium alloy solid coupling type C, with sealing
13、 ring for pressure purposes Nominal pressure 16 DIN 14308-1, Aluminium alloy solid coupling type B, with sealing ring for pressure purposes Nominal pressure 16 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16712-3 September 2015 ICS 13.220.10 English Version Portable equipment for projecting
14、extinguishing agents supplied by fire fighting pumps - Portable foam equipment - Part 3: Low and medium expansion hand-held foam branchpipes PN 16 Equipement portable de projection dagents dextinction aliment par des pompes usage incendie - Equipements mousse portables - Partie 3: Lances mousse main
15、 PN 16 bas et moyen foisonnement Tragbare Gerte zum Ausbringen von Lschmitteln, die mit Feuerlschpumpen gefrdert werden - Tragbare Schaumgerte - Teil 3: Schwer-und Mittelschaumrohre PN 16 This European Standard was approved by CEN on 1 August 2015. CEN members are bound to comply with the CEN/CENELE
16、C 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 be obtained on application to the CEN-CENELEC Management Centre or
17、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 CEN-CENELEC Management Centre has the same status as the offic
18、ial 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
19、Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of ex
20、ploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16712-3:2015 EEN 16712-3:2015(E)2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Terms and definitions . 6 3 Types 7 4 Designation 8 5 Requirements and verification 8 5.1 Mechanical chara
21、cteristics 8 5.1.1 Dimensions and mass 8 5.1.2 Operating and handling elements . 9 5.2 Materials . 9 5.3 Hydraulic characteristics 10 5.3.1 General . 10 5.3.2 Sensitivity to heat . 10 5.3.3 Sensitivity to frost 10 5.3.4 Effective throw 10 5.3.5 Leak-tightness . 12 5.3.6 Hydrodynamic behaviour . 12 6
22、 Information for use . 13 6.1 Instruction and maintenance handbook . 13 6.1.1 General . 13 6.1.2 Instruction handbook . 13 6.1.3 Maintenance handbook . 13 6.2 Marking 13 6.3 Colour coding . 13 Annex A (informative) Acceptance test on delivery . 15 Annex B (normative) Datasheet for hand-held foam bra
23、nchpipes . 16 B.1 General . 16 B.2 General data . 16 B.3 Requirements 16 B.4 Optional extra data (no requirement) 16 B.5 Data certified by*: 16 Annex C (informative) Example of completed datasheet for hand-held foam branchpipes 17 C.1 General . 17 C.2 General data . 17 C.3 Requirements 17 C.4 Option
24、al extra data (no requirement) 17 DIN EN 16712-3:2015-12 EN 16712-3:2015(E)3 C.5 Data certified by*: . 17 Bibliography . 18 DIN EN 16712-3:2015-12 EN 16712-3:2015 (E) 4 European foreword This document (EN 16712-3:2015) has been prepared by Technical Committee CEN/TC 192 “Fire and Rescue Service Equi
25、pment”, 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 March 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. Atte
26、ntion 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 rights. EN 16712 consists of the following parts, under the general title “Portable equipment for
27、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; Part 4: High expansion foam generators PN 16.N1)According to the CEN-CENELEC Internal Regulatio
28、ns, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
29、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16712-3:2015-12 N1) National footnote: In preparation. EN 16712-3:2015 (E) 5 Introduction Hand-held foam branchpipes are used t
30、o expand foam water solution by the addition of air and to project the foam onto a fire or fire risk. DIN EN 16712-3:2015-12 EN 16712-3:2015 (E) 6 1 Scope 1.1 This European Standard applies to hand-held foam branchpipes, and self-inducting foam branchpipes, for low and medium expansion foam used by
31、fire and rescue services and defines their specification and test procedures. NOTE In this European Standard, the term “branchpipe” also refers to “hand-held foam branchpipes”. 1.2 This European Standard is not applicable to hand-held foam branchpipes which have been manufactured before its date of
32、publication as European Standard. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 handheld foam branchpipe hand-operated device in which the water foam solution is mixed with air to produce foam that is then expelled in the form of a jet Note
33、 1 to entry: The branchpipe may be equipped with a pressure gauge. 2.2 combination handheld foam branchpipe handheld foam branchpipe capable of producing either low expansion foam or medium expansion foam Note 1 to entry: The branchpipe may be equipped with a pressure gauge. 2.3 pressures Note 1 to
34、entry: Pressures are expressed in bar. Note 2 to entry: 1 bar = 0,1 MPa (105Pa). 2.3.1 working pressure p1pressure measured at the inlet of the branchpipe 2.3.2 nominal pressure pNmaximum working pressure measured at the inlet of the branchpipe 2.3.3 reference pressure pRpressure measured at the inl
35、et of the branchpipe used for performance tests 2.3.4 test pressure ptstatic pressure used for leakage tests DIN EN 16712-3:2015-12 EN 16712-3:2015 (E) 7 2.4 expansion expansion ratio ratio of the volume of foam to the volume of the water foam solution from which it was made 2.4.1 low expansion foam
36、 foam which has an expansion ratio less than 20 SOURCE: EN 1568-3:2008, 3.3 2.4.2 medium expansion foam foam which has an expansion ratio greater than or equal to 20 but less than 200 SOURCE: EN 1568-3:2008, 3.4 2.5 self-inducting foam branchpipe foam branchpipe and an induction system integrated in
37、to one device 3 Types 3.1 Branchpipes are classified according to Table 1 based on foam expansion, water foam solution flow at working pressure p1(in litres per minute). 3.2 Branchpipes are divided in two groups (low and medium expansion). The group they belong to shall be identified in the standard
38、 description and shall be marked according to 6.2. Table 1 Branchpipe types Type Foam expansion Reference pressure Water foam solution flow Permitted deviation bar l/min % S 1 Low expansion 4 to 400 35 Verification The torques shall be measured in accordance with Table 3. This test shall be conducte
39、d with water only. 5.2 Materials The materials used shall be selected so that all the requirements in Clause 5 are met, subject to the tests defined in this European Standard. The resistance to foam concentrate or additive shall be agreed between the supplier and the user. DIN EN 16712-3:2015-12 EN
40、16712-3:2015 (E) 10 5.3 Hydraulic characteristics 5.3.1 General Unless otherwise specified, tests shall be carried out at the reference pressure pR, in the following order: dimensions and mass according to 5.1.1, verification of operating and handling elements according to 5.1.2, heat test according
41、 to 5.3.2, frost test according to 5.3.3, verification of the effective throw according to 5.3.4, leak-tightness according to 5.3.5 and hydrodynamic behaviour according to 5.3.6. NOTE Guidance for acceptance tests on delivery is given in Annex A. The following pressures shall be used for the determi
42、nation of the hydraulic characteristics. reference pressure: pR= (5 0,1) bar; nominal pressure: pN= 16 bar; test pressure: pt= 25,5 bar burst pressure: pB= 60 bar. 5.3.2 Sensitivity to heat Branchpipes shall resist the heat test defined below. Verification It shall be possible to use the foam branch
43、pipe without restricting its function after it has been stored for 24 h at (55 2) C. This test shall be conducted with water only. Hand protection should be used when carrying out this test. 5.3.3 Sensitivity to frost Branchpipes shall resist the frost test defined below. Verification The foam branc
44、hpipe shall be disconnected following operation for 1 min at the reference pressure pR. It shall then be drained for 1 min and stored at a temperature of (-15 2) C for 30 min. Following this, it shall still be possible to move the operating elements manually. Hand protection should be used when carr
45、ying out this test. 5.3.4 Effective throw The branchpipe shall achieve a minimum effective throw deffas given in Table 4 and shown in Figure 1, when set at the reference pressure. Combination hand-held foam branchpipes shall meet both relevant requirements for low and medium expansion as specified i
46、n Table 4. DIN EN 16712-3:2015-12 EN 16712-3:2015 (E) 11 Table 4 Performance of the foam branchpipe Type Water Multipurpose synthetic foam concentrate Effective throw (at pR) Effective throw Foam expansion ratio m m S 1 10 9 5 S 2 15 12 5 S 4 25 20 5 S 8 30 25 5 M 0,5 3 40 M 1 4 40 M 2 7 40 M 4 8 40
47、 M 8 12 40 Verification The effective throw shall be measured under the following conditions, in accordance with Figure 1: inclination: (30 2); pressure at the inlet of the branchpipe: Rp = 5 bar 0,1 bar; maximum wind speed: 1 m/s; effective throw (in metre): furthest droplets - 10 % = effd = 0,9 ma
48、xd . The measurement shall be carried out when the system is stabilized. The effective throw shall be given in the instruction handbook. DIN EN 16712-3:2015-12 EN 16712-3:2015 (E) 12 Dimensions in millimetres Key 1 effective throw (deff) 2 maximum throw (dmax) Figure 1 Effective throw 5.3.5 Leak-tig
49、htness The foam branchpipe shall be constructed to ensure it does not leak during normal operation. Verification The closed branchpipe shall show no leakage for 1 min at the test pressure pt= 25,5 bar. NOTE No leakage means no visible weeping or drop formation. This test shall be conducted with water only. 5.3.6 Hydrodynamic behaviour The foam branchpipe shall be constructed to ensure it resists the effects of water hammer. Verification The foam branchpipe shall be mount
