DIN 14811 A2-2014 Fire-fighting hoses - Non-percolating layflat delivery hoses and hose assemblies for pumps and vehicles Amendment A2《消防软管 消防泵和车辆用无渗透排水扁形软管和软管组件 修改件A2》.pdf

1、August 2014 English price group 6No 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; 23.040.70!%S; Amendment

2、 A2,English translation of DIN 14811/A2:2014-08Feuerlschschluche Druckschluche und Einbnde fr Pumpen und Feuerwehrfahrzeuge; nderung A2,Englische bersetzung von DIN 14811/A2:2014-08Tuyaux de lutte contre lincendie Tuyaux de refoulement aplatissables tanches, sans et avec raccords, pour les pompes et

3、 les vhicules de lutte contre lincendie; Amendement A2,Traduction anglaise de DIN 14811/A2:2014-08ModifiesDIN 14811:200801 andDIN 14811/A1:201203www.beuth.deDocument comprises 7 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.0

4、4.16 DIN 14811/A2:2014-08 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Amendments in Clause 4 “Classification” . 4 2 Amendments in 5.3.2.2 “Binding wire” 4 3 Amendments in 5.3.2.3 “Binding means” 4 4 Amendments in 5.4 “Colouring” . 4 5 Amendments in 6.1.1 “Deformation under

5、working pressure” 5 6 Amendments in 6.4.1 “Abrasion resistance of class 1 and class 2 hoses” . 5 7 Amendments in Clause 8 “Designation” 6 8 Amendments in Clause 9 “Marking” . 7 9 Amendments in Annex F “Surface abrasion resistance test” . 7 DIN 14811/A2:2014-08 3 Foreword This amendment to DIN 14811:

6、2008-01 and DIN 14811/A1:2012-03 has been prepared by the DIN-Normenausschuss Feuerwehrwesen (FNFW) (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). Hoses as in this standard serve to convey fire e

7、xtinguishing media. When empty, such hoses can be rolled or folded flat. This second revision of DIN 14811 was necessary to bring the standard up to the current state of technology. The most important change is the subdivision of class 1 (uncovered hose) C and B hoses into three performance levels L

8、1, L2 and L3 with regard to abrasion resistance. 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. DIN 14811/A2:2014-08 4 The content of DIN 14811:2008

9、01 and DIN 14811/A1:2012-03 has been modified as follows: 1 Amendments in Clause 4 “Classification” In 4.2 an additional NOTE has been added regarding the the subdivision of class 1 (uncovered hose) C and B hoses into three performance levels L1, L2 and L3 with regard to abrasion resistance accordi

10、ng to 6.4.1, with 4.2 replaced as follows: “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 and/or polyamide. NOTE 1 Class 1 hoses can be dyed or pigmented. NOTE 2 Class 1, C and B hoses are subdivided

11、 into three performance levels L1, L2 and L3 with regard to abrasion resistance (see 6.4.1).” 2 Amendments in 5.3.2.2 “Binding wire” The text of the subclause has been replaced by the following: “For hoses with a diameter 75 mm not including conductive hoses the wire used for binding shall be stainl

12、ess steel wire (VA) and have a diameter of 1,4 mm to 1,6 mm. For hoses with a diameter 75 mm not including conductive hoses the wire used for binding shall be stainless steel wire (VA) and have a diameter of 1,6 mm to 1,8 mm.” 3 Amendments in 5.3.2.3 “Binding means” At the end of the subclause the f

13、ollowing paragraph has been added: “For the performance level L1 according to 6.4.1, an impact and abrasion shield can be attached to the coupling binding. For the performance levels L2 and L3 according to 6.4.1, an impact and abrasion shield shall be attached to the coupling binding.” 4 Amendments

14、in 5.4 “Colouring” In Table 4, multicolour hoses have been included and assigned to the additional number 5 category for “Other”. Correspondingly “/multicolour” has been added under the column “Hose colour”, with Table 4 replaced as follows: DIN 14811/A2:2014-08 5 “Table 4 Hose colours Hose colour N

15、umber used in test number White Test number (no additional number used) Red Test number, with additional no.: 1 Yellow Test number, with additional no.: 2 Orange Test number, with additional no.: 3 Green Test number, with additional no.: 4 Other/multicolour Test number, with additional no.: 5 ” 5 Am

16、endments in 6.1.1 “Deformation under working pressure” In the second paragraph of 6.1.1 the initial test pressure has been increased to 0,15 MPa (1,5 bar) and the text in the second paragraph replaced as follows: “The initial test pressure shall be 0,15 MPa (1,5 bar) and the final test pressure shal

17、l be equal to the working pressure given in Table 7.” 6 Amendments in 6.4.1 “Abrasion resistance of class 1 and class 2 hoses” In 6.4.1, class 1 (uncovered hose) C and B hoses have been subdivided into three performance levels L1, L2 and L3 with regard to abrasion resistance, with the subclause repl

18、aced as follows: “6.4.1 Abrasion resistance of class 1 and class 2 hoses When tested in accordance with Annex F using the number of revolutions specified in Table 8, at least four of the five test pieces shall not burst on being subjected to the working pressure given in Table 7. NOTE Only class 1 (

19、uncovered hose) C and B hoses have been subdivided into three performance categories L1, L2 and L3 with regard to abrasion resistance. DIN 14811/A2:2014-08 6 Table 8 Abrasion resistance of class 1 and class 2 hoses Class Symbol Performance level Number of revolutions Class 1 hoses D 25 80 (C 38)a(C

20、40)aC 42 (C 45)aC 52 (C 55)aL1 200 L2 400 L3 600 (B 65)a(B 70)aB 75 L1 80 L2 120 L3 140 (A 102)aA 110 80 Class 2 hoses All hose types according to Table 1 180 aHoses which are not preferred series hoses as in Table 1 and therefore should not be used in Germany are given in parentheses in Table 8. ”

21、7 Amendments in Clause 8 “Designation” The designation in Clause 8 has been supplemented with the performance level for class 1 (uncovered hose) C and B hoses as follows: “The following designation system shall be used for layflat hoses as in this standard: Layflat hose DIN 14811 C 42 15 KL1 1 K L2D

22、esignation Standard number Symbol according to Table 1 Hose length in metres Hose class according to Clause 4 Additional number for hose colour according to Table 4 Delivered with couplings according to Table 3 Performance level of B and C hoses, class 1 (uncovered hose) PLEASE NOTE! If the hose col

23、our is not indicated at the time of ordering the delivered hose will be white. EXAMPLE 1 Designation of a C-type layflat hose with a 52 mm inside diameter (C 52) and a 20 m length (20), designed as a class 1 hose without cover (KL1), coloured orange (3), delivered with couplings (K) and performance

24、level 2 (L2): Layflat hose DIN 14811 C 52 20 KL1 3 K L2 DIN 14811/A2:2014-08 7 EXAMPLE 2 Designation of an A-type layflat hose with a 110 mm inside diameter (A 110) and a 10 m length (10), designed as a class 3 hose with cover (KL3), coloured red (1), delivered without couplings: Layflat hose DIN 14

25、811 A 110 10 KL3 1 ” 8 Amendments in Clause 9 “Marking” After the second paragraph, the following paragraph has been added: “The performance level shall be added to the hoses marking at the end of the marking.” 9 Amendments in Annex F “Surface abrasion resistance test” In F.2.3 the existing text has

26、 been replaced as follows: “Abrasive material2)consisting of a roll of corundum twill abrasive cloth measuring 50 mm wide and approximately 50 m long. The abrasive used for this abrasive material shall be of aluminium oxide (Al2O3). It shall have a grain size of 60 P as specified in the FEPA Grain S

27、ize Standard for Coated Abrasives 43-1-2006, 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 (43-1-2006).” 2)For sources for such abrasives, contact: Normenausschuss Feuerwehrwesen (FNFW) (DIN Standards Committee Firefighting and Fire Protection) at DIN e. V., Burggrafenstr. 6, 10787 Berlin.