BS EN 15767-2-2009 Portable equipment for projecting extinguishing agents supplied by fire fighting pumps - Part 2 Portable monitors - Water nozzles《用消防泵喷射灭火剂的手持设备 第2部分 便携式监控器 水喷嘴》.pdf

1、BS EN15767-2:2009ICS 13.220.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPortable equipmentfor projectingextinguishing agentssupplied by firefighting pumps Portable monitorsPart 2: Water nozzlesThis British Standardwas published under theauthority of the St

2、andardsPolicy and StrategyCommittee on 31 July2009. BSI 2009ISBN 978 0 580 61143 8Amendments/corrigenda issued since publicationDate CommentsBS EN 15767-2:2009National forewordThis British Standard is the UK implementation of EN 15767-2:2009.The UK participation in its preparation was entrusted to T

3、echnicalCommittee FSH/17/8, Hydrants, hoses and associated water deliveryequipment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its co

4、rrect application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 15767-2:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15767-2June 2009ICS 13.220.10English VersionPortable equipment for projecting extinguishing agents suppliedby fire fighting pumps - Po

5、rtable monitors - Part 2: WaternozzlesEquipement portable de projection dagents dextinctionaliment par des pompes usage incendie - Lances-canonportables - Partie 2 : Diffuseurs eauTragbare Gerte zum Ausbringen von Lschmitteln, welchemit Feuerlschpumpen gefrdert werden - Tragbare Werfer- Teil 2: Wass

6、erdsenThis European Standard was approved by CEN on 23 April 2009.CEN members are bound to 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 r

7、eferences concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member

8、 into its own language and notified to the CEN Management Centre has the same status as theofficial 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, Latvi

9、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 200

10、9 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15767-2:2009: EBS EN 15767-2:2009EN 15767-2:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Requirements .54.1 Mechanical characteristi

11、cs .54.2 Materials .64.3 Flush .64.4 Hydraulic characteristics 74.5 Leak-tightness 85 Testing and verification 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 ma

12、intenance handbook 106.2 Marking 11Annex A (informative) Acceptance test on delivery . 12Annex B (normative) 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 D

13、ata certified by * 17Annex C (informative) Example of completed datasheet for water nozzles. 18C.1 General data 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 . 22BS EN 15767-2:2009EN 157

14、67-2:2009 (E) 3 Foreword This document (EN 15767-2:2009) has been prepared by Technical Committee CEN/TC 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 en

15、dorsement, at the latest by December 2009, and conflicting national standards shall be withdrawn at the 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

16、identifying any or all such patent rights. EN 15767 consists of the following parts, under the general 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;

17、Part 3: Foam devices1). 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, I

18、celand, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 1) Under preparation. BS EN 15767-2:2009EN 15767-2:2009 (E) 4 1 Scope 1.1 In addition to the requirements given in EN 1

19、5767-1, this European Standard is applicable to water nozzles, including water with fire extinguishing 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 i

20、s not applicable to water nozzles that are manufactured before its date of publication. 2 Normative 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 o

21、f the referenced document (including any amendments) applies. EN 15767-1:2009, Portable equipment 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 Europe

22、an Standard, the terms and definitions of EN 15767-1:2009 and the following apply. 3.1 water nozzle 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

23、.1.3. 3.1.1 smooth bore water nozzle nozzle providing a solid water stream 3.1.2 flat spray water 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 nozz

24、le with adjustable pattern at variable flow NOTE Changing the pattern changes the flow. 3.1.3.2 combination water nozzle type 2 nozzle with adjustable pattern at constant flow NOTE Changing the pattern does not change the flow. BS EN 15767-2:2009EN 15767-2:2009 (E) 5 3.1.3.3 combination water nozzle

25、 type 3 nozzle with adjustable pattern at selectable, constant flow NOTE Changing the pattern 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 combin

26、ation water nozzle type 4.1 nozzle with adjustable pattern at constant pressure 3.1.3.4.2 combination 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

27、 3.3.1 straight jet jet having the maximum throw and mechanical effect 3.3.2 spray jet any jet 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

28、 and efficiently 4 Requirements 4.1 Mechanical characteristics 4.1.1 Mass The water nozzle shall have a maximum mass as defined in Table 1. BS EN 15767-2:2009EN 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 seaw

29、ater-resistant nozzles. 4.1.2 Operating and handling elements The torques needed to move 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

30、 elements 15 4.1.3 Flow adjustment positions The settings of the water nozzle equipped with 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 Mat

31、erials The materials used shall be selected in such a way that all the requirements in Clause 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 i

32、n accordance with 5.4, shall be able to clear or flush a steel ball of 6,35 mm diameter without shutting off the nozzle. BS EN 15767-2:2009EN 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 flo

33、wrate over 2 000 l, blockage due to debris is not likely because of the larger opening 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 Pr

34、essures The following pressures, measured at the nozzle inlet, shall be used for the 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 f

35、lowrates indicated on the nozzle shall be measured at straight jet and at the maximum 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

36、 apply when the shape of the stream is altered. 4.4.3 Effective throw The water nozzle 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

37、 effective throw shall be at least 60 metres. BS EN 15767-2:2009EN 15767-2:2009 (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 wa

38、ter nozzles, the regulation range (pressure at the beginning of the range and 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 fo

39、r each shall be read. This pressure shall not deviate from the median pressure 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. BS EN 15767-

40、2:2009EN 15767-2:2009 (E) 9 5 Testing and verification 5.1 General All tests 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 a

41、ngle measurement Arrange the water nozzle on a fixed support in a horizontal 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 a

42、nd frost test 5.3.1 Sensitivity to heat It shall be possible to use the water 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 foll

43、owing 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. NOTE Hand protection is recommended. 5.4 Flushing The combination nozzl

44、e shall be held in the vertical position, discharge end down. The steel ball 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 max

45、d ; pressure at the inlet of the nozzle: Rp= 6 bar; inclination: (30 0,5); 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). BS EN 15767-2:2009EN 15767-2:2009 (E) 10 The measurement shall be carried out when the system is stabil

46、ised. The maximum effective throw shall be given in the instruction 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 mai

47、ntenance handbook 6.1.1 General Each water nozzle shall be delivered with an instruction and maintenance handbook. NOTE 1 These instructions may be combined with those for the portable monitor body. NOTE 2 This handbook should be made available, if required by the user, in a digital format. 6.1.2 In

48、struction handbook The instruction handbook shall contain at least the following information: name and/or logo and contact details of manufacturer; data sheet according to Annex B (see also an example of a complete data sheet in Annex C); product warnings; general information for use. BS EN 15767-2:

49、2009EN 15767-2:2009 (E) 11 6.1.3 Maintenance handbook The maintenance handbook shall at least contain: maintenance instructions; sectional or exploded diagram; spare parts list cross-referenced to diagram. 6.2 Marking Water nozzles shall be permanently marked with at least the following information: identification of the manufacturer; serial or batc