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!%Ir1“2387914www.din.d
2、eDIN EN 16712-1Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment Part 1: Inductors PN 16;English version EN 16712-1:2015,English translation of DIN EN 16712-1:2015-12Tragbare Gerte zum Ausbringen von Lschmitteln, die mit Feuerlschpumpen ge
3、frdert werden Tragbare Schaumgerte Teil 1: Zumischer PN 16;Englische Fassung EN 16712-1:2015,Englische bersetzung von DIN EN 16712-1:2015-12Equipement portable de projection dagents dextinction aliment par des pompes usage incendie Equipements mousse portables Partie 1: Proportionneurs PN 16;Version
4、 anglaise EN 16712-1:2015,Traduction anglaise de DIN EN 16712-1:2015-12SupersedesDIN 14384:2011-01www.beuth.deDocument comprises 21 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.15DIN EN 16712-1:2015-12 2 A comma is used a
5、s the decimal marker. National foreword This document (EN 16712-1:2015) 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 Stan
6、dards Committee Firefighting and Fire Protection), Working Committee NA 031-04-04 AA . The inductor for foam concentrates is a fitting which forms part of the fire-fighting water conveyor component and is used to produce fire-extinguishing foam. Using the Venturi principle, the inductor sucks in the
7、 foam concentrate and induces it into a water flow to produce extinguishing water at a predetermined ratio. In addition to the legal units of measurement, this standard also uses the unit “inch”. It is important to note that according to the German law on units in metrology, the use of these units i
8、s not permitted in official or business communications within Germany. Conversion: Non-SI unit SI unit Conversion in (inch) mm 1 inch = 25,4 mm Amendments This standard differs from DIN 14384:2011-01 as follows: a) the national standard has been converted into a European Standard; b) all references
9、to national standards have been deleted; c) terms and definitions have been supplemented; d) requirements and tests have been revised and a proportion ratio of 0,1 % has been added; e) additional requirements for the instruction and maintenance handbook have been specified; f) the specifications for
10、 marking have been revised; g) specifications for colour coding have been included; h) the text of the standard has been revised in form and substance. Previous editions DIN 14384: 1984-10, 2011-01 DIN EN 16712-1:2015-12 3 National Annex NA (informative) Couplings This European Standard does not con
11、tain 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 water
12、 systems for fire extinguishing in Germany, these have been brought in line with the specifications from DIN 14384, the standard that has been valid until now. The couplings are listed in Table NA.1 below. Table NA.1 Couplings Type Fixed couplingaWater inlet Pre-mix outlet Foam concentrate outlet Z
13、0,5 D D D Z 0,5 R Z 1 C or D C or D D Z 1R Z 2 C C D Z 2 R Z 4 B B D Z 4 R Z 8 B B D Z 8 R aAccording to DIN 14306, DIN 14307-1 and DIN 14308-1. DIN EN 16712-1:2015-12 4 National Annex NB (informative) Bibliography DIN 14306, Aluminium alloy solid coupling type D for pressure and suction purposes No
14、minal pressure 16 DIN 14307-1, Aluminium alloy solid coupling type C, with sealing 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
15、-1 September 2015 ICS 13.220.10 English Version Portable equipment for projecting extinguishing agents supplied by fire fighting pumps - Portable foam equipment - Part 1: Inductors PN 16 Equipement portable de projection dagents dextinction aliment par des pompes usage incendie - Equipements mousse
16、portables - Partie 1: Proportionneurs PN 16 Tragbare Gerte zum Ausbringen von Lschmitteln, die mit Feuerlschpumpen gefrdert werden - Tragbare Schaumgerte - Teil 1: Zumischer PN 16 This European Standard was approved by CEN on 1 August 2015. CEN members are bound to comply with the CEN/CENELEC Intern
17、al 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 to any C
18、EN 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 official vers
19、ions. 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, Norway,
20、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 exploitati
21、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16712-1:2015 EEN 16712-1:2015 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Inductor types 7 5 Designation 8 6 Material . 8 7 Requireme
22、nts and verification 8 7.1 General 8 7.2 Components, dimensions and mass . 9 7.3 Pressures and geodetic suction height . 11 7.4 Inductors without setting device 12 7.5 Inductors with setting device 13 7.6 Leak-tightness . 13 8 Information for use . 14 8.1 Instruction and maintenance handbook . 14 8.
23、1.1 General . 14 8.1.2 Instruction handbook . 14 8.1.3 Maintenance handbook . 14 8.2 Marking 14 8.3 Colour coding . 15 Annex A (informative) Acceptance test on delivery . 16 Bibliography . 17 DIN EN 16712-1:2015-12 EN 16712-1:2015 (E) 3 European foreword This document (EN 16712-1:2015) has been prep
24、ared 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 March 2016, and conflicting nat
25、ional 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 rights. EN 16712 consists of t
26、he 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; Part 4: High expansion foam
27、 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, Former Yugoslav Republic of Mac
28、edonia, 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 16712-1:2015-12 N1) N1) National footnote: In preparation. EN
29、 16712-1:2015 (E) 4 Introduction The inductor is only one piece in the foam system. Other components such as branchpipes, pick-up tubes and delivery hoses should be taken into account (see Figure 2 as example of installation). DIN EN 16712-1:2015-12 EN 16712-1:2015 (E)5 1 Scope 1.1 This European Sta
30、ndard defines requirements and tests which apply to inductors PN 16 which are used to proportion foam concentrate or other additives to the water stream and work using the Venturi principle. 1.2 This European Standard is not applicable to inductors which are integrated in self-inducting foam branchp
31、ipe. 1.3 This European Standard is not applicable to inductors which have been manufactured before its date of publication as European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
32、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 837-1, Pressure gauges Part 1: Bourdon tube pressure gauges Dimensions, metrology, requirements and testing EN 837-3, Pressure gauges Pa
33、rt 3: Diaphragm and capsule pressure gauges Dimensions, metrology, requirements and testing EN 16712-2, Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment Part 2: Pick-up tubes 3 Terms and definitions For the purposes of this document, the
34、following terms and definitions apply. 3.1 inductor equipment which, using the Venturi principle, induces foam concentrates or other additives into a water flow to produce a solution at a predetermined ratio Note 1 to entry: Venturi principle: a negative pressure is created in a suction chamber by m
35、eans of the injector effect. 3.2 regulating device automatic device that regulates p23.3 setting device device to select the proportion ratio DIN EN 16712-1:2015-12 EN 16712-1:2015 (E) 6 3.4 proportion ratio percentage of foam concentrates or additives in the foam water solution EXAMPLE If a hand-he
36、ld foam branchpipe is used to flow 400 l/min of foam water solution at a proportion ratio of 3 %, the foam concentrate flow will be 12 l/min. 3.5 foam water solution homogeneous mixture of water and foam concentrate Note 1 to entry: Foam concentrates are defined in EN 1568 series. 3.6 pressures Note
37、 1 to entry: Pressures are expressed in bar, measured with respect to atmospheric pressure. Note 2 to entry: 1 bar = 0,1 MPa (105Pa). 3.6.1 foam branchpipe working pressure p1pressure measured at the inlet of the foam branchpipe 3.6.2 outlet working pressure p2pressure measured at the outlet of the
38、inductor 3.6.3 inlet working pressure p3pressure measured at the inlet of the inductor 3.6.4 nominal pressure pNmaximum working pressure measured at the inlet of the inductor 3.6.5 test pressure ptstatic pressure used for leakage tests 3.6.6 burst pressure pBstatic pressure used for burst test DIN E
39、N 16712-1:2015-12 EN 16712-1:2015 (E)7 3.6.7 inductor pressure loss p2pressure difference between the inlet of the inductor and the outlet of the inductor (p3 p2) expressed in percentage of p3Note 1 to entry: The pressure loss of the inductor can be calculated with the following formula: =3223 .100p
40、ppp. 3.7 geodetic suction height HS geodistance measured from the central axis of the inductor to the lowest point at which foam concentrate or additive is supplied 4 Inductor types The inductors are categorized by the foam water solution flow rate of the inductor in types according to Table 1. Tabl
41、e 1 Inductor types Type Nominal flow rate of inductor aRegulating device Minimum inside diameter of the connection Water inlet/Foam water solution outlet Foam concentrate inlet l/min Z 0,5 50 without 25,4 mm (1”) 25,4 mm (1”) Z 0,5R with Z 1 100 without 25,4 mm (1”) or 38 mm (1,5”) or 51 mm (2”) Z 1
42、R with Z 2 200 without 38 mm (1,5”) or 51 mm (2”) Z 2R with Z 4 400 without 51 mm (2”) or 63,5 mm (2,5”) Z 4R with Z 8 800 without 51 mm (2”) or 63,5 mm (2,5”) Z 8R with aMeasured at p1 = 5 bar, p2 = 6,5 bar and p2 35 %DIN EN 16712-1:2015-12 EN 16712-1:2015(E)8 5 Designation The designation of an in
43、ductor in compliance with EN 16712-1 comprises name, reference to EN 16712-1, type. EXAMPLE 1 Designation of an inductor with a nominal foam water solution flow rate of 200 l/min: Inductor EN 167121 Z 2 EXAMPLE 2 Designation of an inductor with a nominal foam water solution flow rate of 200 l/min an
44、d a regulating device: Inductor EN 167121 Z 2R 6 Material Inductors shall be made of materials (with or without coatings) whose surfaces and function are not affected by the extinguishing agents or the environment in which they operate. Depending on special application of the inductor (e.g. fire-fig
45、hting on sea-going vessels, disinfection etc.), the list of appropriate materials to be used (e.g. metal, plastic) shall be agreed upon between the manufacturer and the customer. The materials used shall be selected so that all the requirements in Clause 7 are met, subject to the tests defined in th
46、is European Standard. 7 Requirements and verification 7.1 General All the tests defined in this European Standard are type tests. The tests shall be carried out according to Figure 1 and Figure 3, using water in place of foam concentrate and pressure gauges according to EN 837-1 or EN 837-3; accurac
47、y class 2, and under the following conditions: water and air temperature between 5 C and 30 C. NOTE Guidance for acceptance tests on delivery is given in Annex A. DIN EN 16712-1:2015-12 EN 16712-1:2015 (E) 9 Dimensions in millimetres Key Hs geo geodetic suction height-inductor in meter 1 inductor l
48、hose length 2 hand-held foam branchpipe p1foam branchpipe working pressure 3 foam concentrate or additive p2 outlet working pressure 4 foam container p3 inlet working pressure 5 pick-up tube Figure 1 Measure instruction 7.2 Components, dimensions and mass 7.2.1 The inductor shall be equipped at the
49、water inlet, water foam solution outlet and at the foam concentrate inlet with connections according to Table 1. 7.2.2 A back flow preventer shall be installed in the foam concentrate inlet of the inductor. 7.2.3 The flow direction shall be indicated by an arrow on the body of the inductor. 7.2.4 The inductor shall be fitted with a pick-up tube according to EN 16712-2. 7.2.5 As hand-held foam branchpipes are not usually equipped with a flushing device, a strainer can be fitted at the water inlet
