1、January 2008DEUTSCHE NORM English price group 18No 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; 23.040.7
2、0!$O+j“1440871www.din.deDDIN 14811Fire-fighting hoses Non-percolating layflat delivery hoses and hose assemblies for pumpsand vehiclesFeuerlschschluche Druckschluche und Einbnde fr Pumpen und FeuerwehrfahrzeugeTogether with DIN EN 14540:2007-07, supersedes DIN 14811-1:1990-01, DIN 14811-2:1977-11,DI
3、N 14811-3:1977-11 and DIN 14811-4:1976-02Supersedes: see belowwww.beuth.deIn case of doubt, the German-language original should be consulted as the authoritative text.Translation by DIN-Sprachendienst.Document comprises 46 pagesDIN 14811:2008-01 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2
4、Normative references 6 3 Terms and definitions .7 4 Classification8 4.1 General8 4.2 Class 1 (uncovered hose) .8 4.3 Class 2 (hose with thin external coating)8 4.4 Class 3 (covered hose)8 5 Dimensions, tolerances, maximum mass, couplings, binding/assembly, and colouring9 5.1 Inside diameter and maxi
5、mum mass.9 5.2 Hose length 9 5.3 Couplings and binding. 10 5.4 Colouring. 11 6 Performance requirements, testing 12 6.1 Hydrostatic requirements 12 6.2 Adhesion 13 6.3 Accelerated ageing. 13 6.4 Abrasion resistance . 13 6.5 Temperature range . 14 6.6 Flame resistance. 14 6.7 Ozone resistance 14 6.8
6、UV resistance 15 6.9 Resistance to kinking. 15 6.10 Pressure loss due to friction . 15 6.11 Resistance to rotting and to extinguishing media 15 7 High pressure layflat hoses for high pressure pumps . 16 8 Designation . 16 9 Marking 16 10 Types of testing 17 10.1 Type test (Typprfung). 17 10.2 Inspec
7、tions (Kontrollprfungen). 17 11 Handling of layflat hoses . 17 11.1 Handling hoses at the incident site 17 11.2 Transporting hoses in vehicles. 18 11.3 Cleaning, drying, storage. 18 Annex A (normative) Measurement of hose cover thickness . 19 A.1 Apparatus 19 A.2 Procedure 19 A.3 Test report . 19 An
8、nex B (normative) Determining consistency of inside diameter 20 B.1 Procedure 20 B.2 Test report . 21 Annex C (normative) Hose assembly test . 22 C.1 Test piece 22 C.2 Procedure 22 DIN 14811:2008-01 3 C.3 Test report22 Annex D (normative) Kink pressure test 23 D.1 Principle .23 D.2 Test piece .23 D.
9、3 Apparatus.23 D.4 Procedure.23 D.5 Test report23 Annex E (normative) Accelerated ageing test .24 E.1 Test piece .24 E.2 Procedure.24 E.3 Test report24 Annex F (normative) Surface abrasion resistance test 25 F.1 Test pieces .25 F.2 Apparatus.25 F.3 Procedure.26 F.4 Test report27 Annex G (normative)
10、Point abrasion resistance test 28 G.1 Test pieces .28 G.2 Apparatus.28 G.3 Procedure.30 G.4 Test report30 Annex H (normative) Low temperature flexibility test 31 H.1 Test piece .31 H.2 Apparatus.31 H.3 Procedure.33 H.4 Test report34 Annex I (normative) Flame resistance test.35 I.1 Test piece .35 I.2
11、 Apparatus.36 I.3 Procedure.37 I.4 Evaluation 37 I.5 Test report37 Annex J (normative) Ozone resistance test.38 J.1 Test piece .38 J.2 Apparatus.38 J.3 Procedure.39 J.4 Test report39 Annex K (normative) Test for resistance to kinking .40 K.1 Test piece .40 K.2 Apparatus.40 K.3 Procedure.41 K.4 Test
12、report41 Annex L (normative) Pressure loss test.42 L.1 Principle .42 L.2 Test piece .42 L.3 Apparatus.42 L.4 Procedure.43 L.5 Evaluation 44 L.6 Test report44 Annex M (normative) Periodic testing and repair of hose assemblies .45 Bibliography46 DIN 14811:2008-01 4 Foreword This document has been prep
13、ared by Technical Committee NA 031-04-04 AA Schluche und Armaturen of the Normenausschuss Feuerwehrwesen (FNFW) (Firefighting and Fire Protection Standards Committee). Hoses as in this standard serve to convey fire extinguishing media (water, water containing non-compressible additives). When empty,
14、 such hoses can be rolled or folded flat. This revision of the DIN 14811 series was necessary to bring the standards up to the current state of technology. The original intention was to develop a European Standard at CEN, the European Committee for Standardization, on “Non-percolating layflat delive
15、ry hoses and hose assemblies for pumps and vehicles” (prEN 1924). Together with DIN EN 14540 “Firefighting hoses Non-percolating layflat hoses for fixed systems”, prEN 1924 was to replace the German Standards DIN 14811-1:1990-01, DIN 14811-2:1977-11, DIN 14811-3:1977-11 and DIN 14811-4:1976-02, whic
16、h specify requirements and tests for layflat hoses. However, the final draft of prEN 1924 did not receive the necessary majority during the CEN formal voting procedure and the project was stopped. The four DIN 14811 standards have therefore been fully revised and combined into one standard, the pres
17、ent one. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights Amendments This standard differs from DIN 14811-1:1990-01, DIN 14811-2:1977-11, DIN 14811-3:1
18、977-11 and DIN 14811-4:1976-02 as follows: a) The four parts have been combined into one standard. b) Terms and definitions are now included. c) Hoses are now classified into three types according to their design. d) The number of inside diameters has been increased and some inside diameters have be
19、en combined into preferred series. e) The maximum hose masses have been modified and specified as masses per unit length. f) Hose lengths have been modified. g) Requirements regarding hose assembly with binding and binding wires have been modified. h) The number of permissible hose colours has been
20、increased and the hose colour is now to be indicated in the test number by means of a numeral. i) Performance requirements for finished hoses have been completely revised and brought in line with the relevant European Standards on fire hoses. j) Requirements for higher pressure hoses for higher pres
21、sure pumps are now specified. k) Requirements regarding the designation, marking and handling of hoses have been modified. l) Specifications regarding the testing of hoses have been fully revised, i.e. brought in line with the relevant European Standards on fire hoses and presented in several normat
22、ive annexes. m) The standards have been editorially revised. Previous editions DIN 14106 = DIN FEN 106: 1925-04, 1929-09 DIN 14811: 1953-06, 1955-11, 1959-05 DIN 14811-1: 1968-09, 1982-01, 1985-04, 1990-01 DIN 14811-2: 1970-11, 1977-11 DIN 14811-3: 1971-07, 1977-11 DIN 14811-4: 1976-02 DIN 14811:200
23、8-01 5 Introduction This standard is mainly concerned with fire service layflat hoses for firefighting and covers hoses used manually to control and extinguish fires as well as hoses required to deliver large quantities of water over long distances. Table 1 gives fourteen possible inside diameters.
24、The number of hose sizes has been extended from five to fourteen to include eight new sizes which are widely used in other countries but which have not yet been approved as being in accordance with DIN 14811 by the Zentralprfstelle fr Feuerlschschluche (German central fire hose testing laboratory) i
25、n Celle, Germany. The ninth new hose size (inside diameter 152 mm) is also used in Germany. This extension of the number of hose sizes takes account of the fact that DIN 14811 is widely used outside Germany as a basis for purchasing fire hoses. The European Standard prEN 1924 which would have covere
26、d these new hose sizes did not receive the necessary majority during the CEN formal voting procedure and the project was stopped. The five hose sizes previously designated as D, C 42, C 52, B and A hoses continue to be used in Germany and are designated as preferred series in the present standard. T
27、able 1 clearly identifies hoses whose use is to be avoided in Germany. In analogy to the European Standards developed by CEN/TC 192/WG 1 “Firefighting hoses” DIN EN 694, DIN EN 1947, DIN EN 14540 and DIN EN ISO 14557 the conformity of hoses with the present standard is to be established in an indepe
28、ndent certification process involving testing and continuous inspection in conjunction with a review of the manufacturers approved quality management system, e.g. in accordance with DIN EN ISO 9001. Requests for fire hose tests are to be submitted to the Zentralprfstelle fr Feuerlschschluche (German
29、 central fire hose testing laboratory) of the Niederschsische Landesfeuerwehrschule in Celle, Germany. Permissible hose colours are specified in Table 4. DIN 14811:2008-01 6 1 Scope This standard specifies requirements and test methods for non-percolating layflat delivery hoses for fire fighting pur
30、poses which serve to convey fire extinguishing media (water, water containing non-compressible additives) and which, when empty, can be folded or rolled flat. The standard applies to layflat delivery hoses intended for use at a minimum ambient temperature of 25 C and a working pressure of 1,6 MPa (1
31、6 bar) for D 25 to B 75 hoses, or 1,2 MPa (12 bar) for A 102 to F 152 hoses. NOTE 1 Additional requirements for high pressure hoses are given in clause 7. NOTE 2 All pressures are gauge pressures and are expressed in megapascals. 1 MPa = 10 bar. 2 Normative references The following referenced docume
32、nts 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. DIN 14301, Aluminium alloy delivery and suction coupling type D with nominal pre
33、ssure PN 16 DIN 14302, Aluminium alloy delivery coupling type C with nominal pressure PN 16 DIN 14303, Aluminium alloy delivery coupling type B with nominal pressure PN 16 DIN 14323, Aluminium alloy delivery and suction coupling type A with nominal pressure PN 16 DIN 14332, Aluminium alloy delivery
34、coupling type C with nominal pressure PN 16 used for C 42 fire hoses DIN 14820-1, Bridges for fire hoses Part 1: Wood bridges DIN 14828, Rope hose holders DIN 51622, Liquefied petroleum gases Propane, propene, butane, butene and their mixtures Requirements DIN 53508, Testing of rubber Accelerated ag
35、eing DIN 53509-1, Testing of rubber Determination of resistance to ozone cracking Part 1: Static conditions DIN EN 1028-1, Firefighting pumps Firefighting centrifugal pumps with primer Part 1: Classification General and safety requirements DIN EN 10220, Seamless and welded steel tubes General tables
36、 of dimensions and masses per unit length DIN EN ISO 139, Textiles Standard atmospheres for conditioning and testing DIN EN ISO 1402:1996-09, Rubber and plastics hoses and hose assemblies Hydrostatic testing (ISO 1402:1994) DIN EN ISO 5167-1, Measurement of fluid flow by means of pressure differenti
37、al devices inserted in circular cross-section conduits running full Part 1: General principles and requirements (ISO 5167-1:2003) DIN EN ISO 5167-3, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 3: Nozzles and Ventur
38、i nozzles (ISO 5167-3:2003) DIN EN ISO 8033:2006-11, G Rubber and plastics hoses Determination of adhesion between components (ISO 8033:2006) DIN ISO 2768-1, General tolerances Tolerances for linear and angular dimensions without individual tolerance indications; identical with ISO 2768-1:1989 DIN 1
39、4811:2008-01 7 43-D-1984 R 1993, FEPA Safety Code on grains of fused aluminium oxide, silicon carbide and other abrasive materials for coated abrasives Part 1: Macrogrits P 12 to P 220 (German Version. English and French versions are also available)1)3 Terms and definitions For the purposes of this
40、standard, the following terms and definitions apply. 3.1 working pressure maximum pressure for which the hose is designed 3.2 layflat hose hose which can be folded or rolled flat when empty 3.3 high pressure layflat hose firefighting layflat hose intended for working pressures of at least 4 MPa, a p
41、roof pressure of at least 6 MPa and a burst pressure of at least 10 MPa 3.4 colouring colour of the hose 3.5 hose coating thin external coating(s) applied along the entire circumference of the hose to improve abrasion resistance 3.6 hose cover cover which completely surrounds the jacket (e.g. rubber
42、 cover) 3.7 jacket circular woven seamless reinforcement 3.8 proof pressure pressure applied during a non-destructive test and held for a specified period of time to prove the integrity of the construction DIN EN ISO 8330:2000-10 3.9 burst pressure pressure at which rupture of the hose occurs DIN EN
43、 ISO 8330:2000-10 1)Published by the FEPA Federation of European Producers of Abrasives, Paris. The German version is obtainable from: Staatliche Materialprfungsanstalt Darmstadt, Fachgebiet und Institut fr Werkstoffkunde, Grafenstrae 2, 64283 Darmstadt or VDS Verband Deutscher Schleifmittelwerke e.
44、V., Oxfordstrae 8, 53111 Bonn, Germany. The English and French versions are obtainable at www.fepa abrasives.org.DIN 14811:2008-01 8 4 Classification 4.1 General Hoses shall be assigned to one of the three classes specified in 4.2 to 4.4 according to their design and performance. The holder of the t
45、est number (or test number applicant) shall manufacture the jacket and apply the lining and, (where applicable) outer cover, ensuring a durable bond. 4.2 Class 1 (uncovered hose) Class 1 hoses shall consist of : a) an impermeable rubber or plastics lining; b) a synthetic fibre jacket of polyester an
46、d/or polyamide. NOTE Class 1 hoses can be dyed or pigmented. 4.3 Class 2 (hose with thin external coating) Class 2 hoses shall consist of: a) an impermeable rubber or plastics lining; b) a synthetic fibre jacket of polyester and/or polyamide; c) a thin externally applied rubber or plastics coating.
47、4.4 Class 3 (covered hose) Class 3 hoses shall consist of: a) an impermeable rubber or plastics lining; b) a synthetic fibre jacket of polyester and/or polyamide; c) a thick rubber or plastics cover having a thickness greater than 0,3 mm measured in accordance with Annex A. DIN 14811:2008-01 9 5 Dim
48、ensions, tolerances, maximum mass, couplings, binding/assembly, and colouring 5.1 Inside diameter and maximum mass The inside diameter of the hose and tolerances shall conform to the requirements given in Table 1 and the consistency of the diameter shall be determined as specified in Annex B. The ma
49、ss per unit length for a length of hose of at least 10 m, without couplings, shall not exceed the values given in Table 1. Table 1 Inside diameter, tolerances, and maximum mass per unit length Symbol Inside diameter mm Mass per unit length kg/m (Preferred series) (Should not be used in Germany) Tolerance Class 1 max. Cass 2 max. Cass 3 max. D 25 25 0,18 0,20 0,23 (C 38) 38 0,24 0,29 0,35 (C 40) 40 0,26 0,31 0,37 C 42 42 0,27 0,33 0,39 (C 45) 45 0,29 0,35 0,42 C 52 52 0,35 0,42 0,50 (C 55) 55 0,38 0,46 0
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