DIN EN 15767-2-2009 Portable equipment for projecting extinguishing agents supplied by fire fighting pumps - Portable monitors - Part 2 Water nozzles English version of DIN EN 1576.pdf

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1、September 2009DEUTSCHE NORM English price group 12No part of this standard 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!$YP|“15445

2、89www.din.deDDIN EN 15767-2Portable equipment for projecting extinguishing agents supplied by firefighting pumps Portable monitors Part 2: Water nozzlesEnglish version of DIN EN 15767-2:2009-09Tragbare Gerte zum Ausbringen von Lschmitteln, welche mit Feuerlschpumpengefrdert werden Tragbare Werfer Te

3、il 2: WasserdsenEnglische Fassung DIN EN 15767-2:2009-09www.beuth.deDocument comprises pages24DIN EN 15767-2:2009-09 National foreword This standard has been prepared by Technical Committee CEN/TC 192 “Fire service equipment” (Secretariat: BSI, United Kingdom). The responsible German body involved i

4、n its preparation was the Normenausschuss Feuerwehrwesen (Firefighting and Fire Protection Standards Committee), Technical Committee NA 031-04-04 AA Schluche und Armaturen SpA zu CEN/TC 192/WG 1 und WG 8. Attention is drawn to the possibility that some of the elements of this document may be the sub

5、ject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. This European Standard does not specify requirements for coupling. Therefore, agreements relating to couplings should be made when ordering. The DIN collective mark may be applied to portable moni

6、tors complying with this standard if they have been registered by DIN CERTCON1), N2)N1)Use of the collective mark requires registration by DIN CERTCO Gesellschaft fr Konformittsbewertung mbH,Alboinstr. 56, 12103 Berlin. N2)The FNFW Steering Committee in its resolution 08/2008/LA confirmed the use of

7、 the collective mark. 2 . EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15767-2June 2009ICS 13.220.10English VersionPortable equipment for projecting extinguishing agents suppliedby fire fighting pumps - Portable monitors - Part 2: WaternozzlesEquipement portable de projection dagents dextinctio

8、naliment par des pompes usage incendie - Lances-canonportables - Partie 2 : Diffuseurs eauTragbare Gerte zum Ausbringen von Lschmitteln, welchemit Feuerlschpumpen gefrdert werden - Tragbare Werfer- Teil 2: WasserdsenThis European Standard was approved by CEN on 23 April 2009.CEN members are bound to

9、 comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Mana

10、gement 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as th

11、eofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia,

12、Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN na

13、tional Members.Ref. No. EN 15767-2:2009: EEN 15767-2:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Requirements .54.1 Mechanical characteristics .54.2 Materials .64.3 Flush .64.4 Hydraulic characteristics 74.5 Leak-tightness 85 Testing and verificati

14、on 95.1 General 95.2 Jet spray angle measurement 95.3 Heat and frost test .95.4 Flushing 95.5 Flow and throw test .95.6 Leak-tightness test . 106 Information for use . 106.1 Instruction and maintenance handbook 106.2 Marking 11Annex A (informative) Acceptance test on delivery . 12Annex B (normative)

15、 Datasheet for water nozzles . 13B.1 General . 13B.2 General data 13B.3 Flow pressure chart . 13B.4 Operational devices 16B.5 Requirements 17B.6 Optional extra data (no requirements) . 17B.7 Data certified by * 17Annex C (informative) Example of completed datasheet for water nozzles. 18C.1 General d

16、ata 18C.2 Flow pressure chart . 18C.3 Operational devices 20C.4 Requirements 21C.5 Optional extra data (no requirements) . 21C.6 Data certified by * 21Bibliography . 22DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 3 Foreword This document (EN 15767-2:2009) has been prepared by Technical Committee CEN/T

17、C 192 “Fire 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 December 2009, and conflicting national standards shall be withdrawn at the

18、 latest by December 2009. 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 15767 consists of the following parts, under the general

19、title Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable monitors: Part 1: General requirements for portable monitor assemblies; Part 2: Water nozzles; Part 3: Foam devices1). According to the CEN/CENELEC Internal Regulations, the national standards organ

20、izations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Ro

21、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 1) Under preparation. DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 4 1 Scope 1.1 In addition to the requirements given in EN 15767-1, this European Standard is applicable to water nozzles, including water with fire extinguis

22、hing additives. It specifies requirements for safety, performance, classification and designation, as well as test methods, instructions for use and maintenance and marking. 1.2 This European Standard is not applicable to water nozzles that are manufactured before its date of publication. 2 Normativ

23、e 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 document (including any amendments) applies. EN 15767-1:2009, Portable equipment

24、for projecting extinguishing agents supplied by fire fighting pumps Portable monitors Part 1: General requirements for portable monitor assemblies 3 Terms and definitions For the purposes of this European Standard, the terms and definitions of EN 15767-1:2009 and the following apply. 3.1 water nozzl

25、e component, without shut-off function, connected to the outlet of the monitor that controls the water stream (shape and quantity) NOTE Several types of water nozzles are described in 3.1.1, 3.1.2 and 3.1.3. 3.1.1 smooth bore water nozzle nozzle providing a solid water stream 3.1.2 flat spray water

26、nozzle nozzle providing a flat spray water stream 3.1.3 combination water nozzle nozzle with a adjustable pattern, corresponding to the following definitions 3.1.3.1 combination water nozzle type 1 nozzle with adjustable pattern at variable flow NOTE Changing the pattern changes the flow. 3.1.3.2 co

27、mbination water nozzle type 2 nozzle with adjustable pattern at constant flow NOTE Changing the pattern does not change the flow. DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 5 3.1.3.3 combination water nozzle type 3 nozzle with adjustable pattern at selectable, constant flow NOTE Changing the pattern

28、 does not change the flow. 3.1.3.4 combination water nozzle type 4 (automatic water nozzle) nozzle with integrated pressure control device NOTE Changing the pattern does not change the flow. 3.1.3.4.1 combination water nozzle type 4.1 nozzle with adjustable pattern at constant pressure 3.1.3.4.2 com

29、bination water nozzle type 4.2 nozzle with adjustable pattern and selectable flow at constant pressure 3.2 median pressure pmfor automatic water nozzle, average pressure of the pressure control range 3.3 jet 3.3.1 straight jet jet having the maximum throw and mechanical effect 3.3.2 spray jet any je

30、t different to the straight jet EN 15182-1:2007 3.4 flush position allowing the water nozzle to clear debris 3.5 manufacturers stated maximum flow Qmaxflow under which the water nozzle can be operated safely and efficiently 4 Requirements 4.1 Mechanical characteristics 4.1.1 Mass The water nozzle sh

31、all have a maximum mass as defined in Table 1. DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 6 Table 1 Maximum mass Qmaxl/min Maximum mass of the water nozzle kg 8 000 20 NOTE The maximum mass does not apply to seawater-resistant nozzles. 4.1.2 Operating and handling elements The torques needed to move

32、 the operating elements shall not exceed the values given in Table 2 at pressures up to the nominal pressure. Table 2 Maximum torques Type of operating element Torque Nm Lever 20Valve handle 15 Rotating operating elements 15 4.1.3 Flow adjustment positions The settings of the water nozzle equipped w

33、ith selectable flowrate shall be easily identifiable by visual means. 4.1.4 Jet adjustment positions The different jet positions of a nozzle equipped with adjustable jet positions shall be clearly marked. 4.2 Materials The materials used shall be selected in such a way that all the requirements in C

34、lause 4 are met, subject to the tests defined in Clause 5. The water nozzle shall pass the heat and frost tests defined in 5.3. 4.3 Flush 4.3.1 The combination nozzle with Qmaxless than 2 000 l/min, when tested in accordance with 5.4, shall be able to clear or flush a steel ball of 6,35 mm diameter

35、without shutting off the nozzle. DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 7 NOTE This should be accomplished either through the full open nozzle position or through a flush feature of the nozzle. In nozzles with flowrate over 2 000 l, blockage due to debris is not likely because of the larger open

36、ing of the nozzle. 4.3.2 Water nozzles equipped with a flush feature shall have a mechanical and/or visual device to indicate to the user when the flush feature is being engaged. 4.4 Hydraulic characteristics 4.4.1 Pressures The following pressures, measured at the nozzle inlet, shall be used for th

37、e determination of the hydraulic characteristics: reference pressure: pR= 6 bar 0,1 bar; median pressure for automatic water nozzle: pm; nominal pressure: pN= 16 bar; test pressure: pt= 25,5 bar. 4.4.2 Flowrates All flowrates indicated on the nozzle shall be measured at straight jet and at the maxim

38、um spray angle position at the reference pressure pR. The flowrates measured at the reference pressure pR shall not deviate by more than - 0/+ 10 % of the flowrate setting of the nozzle. NOTE The deviation should also apply when the shape of the stream is altered. 4.4.3 Effective throw The water noz

39、zle shall achieve, for each flowrate position above 500 l/min, a minimum effective throw deffas shown in Figure 1, when set to a straight jet at the reference pressure. For water nozzles above 4 000 l/min, the minimum effective throw shall be at least 60 metres. DIN EN 15767-2:2009-09 EN 15767-2:200

40、9 (E) 8 Key 1 Flowrate Q in litres per minute 2 Effective throw effd in metres Figure 1 Effective throw 4.4.4 Spray jet The spray jet shall have a spray angle of at least 100. 4.4.5 Automatic water nozzles For automatic water nozzles, the regulation range (pressure at the beginning of the range and

41、pressure at the end of the range) shall be stated in the documentation accompanying the product, from which the median pressure is calculated. The flow should be set at both the minimum and maximum flow and the pressure for each shall be read. This pressure shall not deviate from the median pressure

42、 by more than 30 %. 4.5 Leak-tightness The nozzle shall show no leakage during 1 min at the reference pressure pR= 6 bar. NOTE No leakage means no visible weeping or drop formation from the body of the nozzle. DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 9 5 Testing and verification 5.1 General All te

43、sts shall be done with water only. Unless otherwise specified, tests shall be carried out at the reference pressure pR, in the following order. NOTE Guidance for acceptance tests on delivery is given in Annex A. 5.2 Jet spray angle measurement Arrange the water nozzle on a fixed support in a horizon

44、tal position 1,5 m above the ground, in a zone where the wind speed is lower than 2 m/s. Arrange a rule perpendicular to the flow at a distance of 1 m. This rule shall be marked in order to determine the spray angle. 5.3 Heat and frost test 5.3.1 Sensitivity to heat It shall be possible to use the w

45、ater nozzle without restricting its function after it has been stored for 24 h at (55 2) C. NOTE Hand protection should be used when carrying out this test. 5.3.2 Sensitivity to frost The water nozzle shall be disconnected following operation for 1 min at the reference pressure pR. It shall then be

46、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. NOTE Hand protection is recommended. 5.4 Flushing The combination nozzle shall be held in the vertical position, discharge end down. The steel b

47、all shall pass through the nozzle. 5.5 Flow and throw test The effective throw shall be measured under the following conditions, in accordance with Figure 2: effective throw (in metre): furthest droplets - 10 % = effd = 0,9 maxd ; pressure at the inlet of the nozzle: Rp= 6 bar; inclination: (30 0,5)

48、; height: the outlet of the nozzle shall be no more than 1 m from the ground; maximum wind speed: 2 m/s (Beaufort scale 3). DIN EN 15767-2:2009-09 EN 15767-2:2009 (E) 10 The measurement shall be carried out when the system is stabilised. The maximum effective throw shall be given in the instruction

49、handbook. Key 1 Effective throw (deff) 2 Maximum throw (dmax) Figure 2 Measurement of the effective throw 5.6 Leak-tightness test The leak test shall be conducted in accordance with 4.5. 6 Information for use 6.1 Instruction and maintenance handbook 6.1.1 General Each water nozzle shall be delivered with an instruction and maintenance handbook. NOTE 1