1、BRITISH STANDARD BS ISO 6805:1994 Implementation of ISO6805:1994 Rubber hoses and hose assemblies for underground mining Wire-reinforced hydraulic types for coal mining Specification ICS 73.100.30; 83.140.00BSISO6805:1994 This BritishStandard, having been prepared under the directionof the Sector Bo
2、ard forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15May1995 BSI12-1999 The following BSI references relate to the work on this standard: Committee referencePRI/66 Draft for comment88/42256DC ISBN 0 580 24150 5 Committees responsible for th
3、is British Standard The preparation of this BritishStandard was entrusted to Technical Committee PRI/66, Hoses, upon which the following bodies were represented: Association of Metropolitan Authorities British Coal Corporation British Compressed Gases Association British Rubber Manufacturers Associa
4、tion Ltd. Chief and Assistant Chief Fire Officers Association Energy Industries Council Fire Extinguising Trades Association Home Office LP Gas Association London Fire and Civil Defence Authority Ministry of Defence Society of Motor Manufacturers and Traders Limited The following body was also repre
5、sented in the drafting of the standard, through subcommittees and panels: British Fluid Power Association Amendments issued since publication Amd. No. Date CommentsBSISO6805:1994 BSI 12-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword iii Text of ISO6805 1
6、BSISO6805:1994 ii BSI 12-1999 National foreword This BritishStandard reproduces verbatim ISO6805:1994 and implements it as the UK national standard. This BritishStandard is published under the direction of the Sector Board for Materials and Chemicals whose Technical CommitteePRI/66 has the responsib
7、ility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and Eu
8、ropean Standards, as well as overseas standards, are available from Customer Services, BSI,389Chiswick High Road, London W44AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Complia
9、nce with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theISO title page, pagesii toiv, pages1 to6 and a back cover. This standard has been updated (see copyright date) and ma
10、y have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO6805:1994(E) ii BSI 12-1999 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Types of hose 1 4 Materials and construction 1 5 Dimensions 1 6 Pressure requirements 4 7 Minimum
11、 bend radius and change in length at maximum working pressure 4 8 Length of hose 5 9 Impulse test requirements 5 10 Cold-flexibility requirements 5 11 Ozone resistance 5 12 Oil resistance 5 13 Abrasion resistance 5 14 Electrical resistance 5 15 Flame resistance 5 16 Adhesion between components 6 17
12、Marking 6 Table 1 Hose concentricity 2 Table 2 Hose dimensions: type1 2 Table 3 Hose dimensions: type2 2 Table 4 Hose dimensions: type3 3 Table 5 Hose dimensions: type4 3 Table 6 Hose dimensions: type5 3 Table 7 Hose dimensions: type6 3 Table 8 Maximum working pressure 4 Table 9 Minimum bend radius
13、4 Descriptors: Coal mines, mining equipment, hydraulic equipment, rubber products, hoses, rubber hoses, classification, specifications, dimensions, tests, marking.ISO6805:1994(E) BSI 12-1999 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national s
14、tandards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International
15、organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees a
16、re circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO6805 was prepared by Technical Committee ISO/TC45, Rubber and rubber products, Subcommittee SC1, Hoses (rubber and p
17、lastics). This second edition cancels and replaces the first edition (ISO6805:1984), which has been technically revised.iv blankISO6805:1994(E) BSI 12-1999 1 1 Scope This International Standard specifies requirements for six types of embedded-wire hose and hose assembly of bore diameter from5mm to51
18、mm for use with common hydraulic fluids such as mineral oils, soluble oils, oil and water emulsions, aqueous glycol solution and water at temperatures ranging from40 C to+100 C for types1 to5 and from40 C to+121 C for type6. Operation at the extremes of or outside this temperature range may material
19、ly reduce the life of the hose. The hose is not suitable for use with fluids having a castor oil or ester base. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, t
20、he editions indicated were valid. Allstandards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of cur
21、rently valid International Standards. ISO1402:, Rubber and plastics hoses and hose assemblies Hydrostatic testing 1) . ISO1436:1991, Rubber hoses and hose assemblies Wire-reinforced hydraulic type Specification. ISO1817:1985, Rubber, vulcanized Determination of the effect of liquids. ISO3862:1991, R
22、ubber hoses and hose assemblies Rubber-covered, spiral wire reinforced, hydraulic type Specification. ISO4671:1984, Rubber and plastics hose and hose assemblies Methods of measurement of dimensions. ISO4672:1988, Rubber and plastics hoses Sub-ambient temperature flexibility tests. ISO6803:1994, Rubb
23、er or plastics hoses and hose assemblies Hydraulic-pressure impulse test without flexing. ISO6945:1991, Rubber hoses Determination of abrasion resistance of the outer cover. ISO7326:1991, Rubber and plastics hoses Assessment of ozone resistance under static conditions. ISO8030:1987, Rubber and plast
24、ics hoses for underground mining Method of test for flammability. ISO8031:1993, Rubber and plastics hoses and hose assemblies Determination of electrical resistance. ISO8033:1991, Rubber and plastics hose Determination of adhesion between components. 3 Types of hose Six types of hose are specified:
25、Type1: a hose with two steel-wire braids, dimensionally and constructionally in line with ISO1436:1991, type2A. Type2: a hose with two steel-wire braids, which is typical of that at present in use in many deep coal-mining installations. The dimensional parameters have been selected to provide increa
26、sed reliability. Type3: a hose with four steel-wire spiral plies, dimensionally and constructionally in line with ISO3862:1991, type2. Type4: a hose with two steel-wire braids, dimensionally in line with type2 but constructed to give higher maximum working pressure ratings. Type5: a hose with four s
27、teel-wire spiral plies, dimensionally and constructionally in line with ISO3862:1991, type5. Type6: a hose with four or six steel-wire spiral plies, designed for higher working pressures and temperatures than type5. 4 Materials and construction NOTE 1This International Standard does not include requ
28、irements for end fittings. It is limited to the performance of hoses and hose assemblies. 4.1 The hose shall be anti-static and fire-resistant. The hose shall consist of an oil- and water-resistant synthetic-rubber lining, a steel-wire reinforcement and an oil-, water-, weather- and abrasion-resista
29、nt synthetic-rubber cover. A ply or braid of suitable textile material may be used over the lining and/or the wire reinforcement to anchor the synthetic rubber to the wire. Each braid or spiral wire layer shall be separated by an insulating layer of rubber. 4.2 The hose shall be concentric in accord
30、ance with the requirements of Table 1, when measured in accordance with ISO4671. 5 Dimensions The bore diameter, diameter over reinforcement and outside diameter of finished hose shall meet the requirements of Table 2 to Table 7 when measured in accordance with ISO4671. 1) To be published. (Revision
31、 of ISO1402:1984)ISO6805:1994(E) 2 BSI 12-1999 Table 1 Hose concentricity Table 2 Hose dimensions: type1 Table 3 Hose dimensions: type2 Values in millimetres Nominal bore Maximum variation from concentricity Bore diameter to overall diameter Bore diameter to reinforcement diameter Up to and includin
32、g6,3 0,5 0,5 Over6,3 and up to and including25 0,7 0,7 Over25 1,0 1,0 Dimensions in millimetres Nominal bore Bore diameter Diameter over outer wire braid Outside diameter of finished hose min. max. min. max. min. max. 5 6,3 10 12,5 16 19 25 31,5 38 51 4,5 6,1 9,3 12,3 15,4 18,6 25,0 31,3 37,7 50,4 5
33、,4 7,0 10,1 13,5 16,7 19,8 26,4 33,0 39,3 52,0 10,6 12,1 16,1 19,0 22,2 26,2 34,1 43,3 49,6 62,3 11,7 13,3 17,3 20,6 23,8 27,8 35,7 45,7 52,0 64,7 15,1 16,7 20,6 23,8 27,0 31,0 38,5 49,2 55,6 68,2 16,7 18,3 22,2 25,4 28,6 32,6 40,9 52,4 58,8 71,4 Dimensions in millimetres Nominal bore Bore diameter
34、Diameter over outer wire braid Outside diameter of finished hose min. max. min. max. min. max. 6,3 10 12,5 16 19 25 31,5 6,1 9,3 12,4 15,6 18,8 25,0 31,4 6,6 9,8 13,0 16,1 19,3 25,8 32,1 12,3 16,2 20,6 24,0 27,8 34,7 40,8 13,1 17,2 21,6 25,0 28,8 36,0 42,0 16,4 20,8 25,8 29,2 33,0 39,9 46,7 17,7 22,
35、1 27,1 30,5 34,3 41,4 48,3ISO6805:1994(E) BSI 12-1999 3 Table 4 Hose dimensions: type3 Table 5 Hose dimensions: type4 Table 6 Hose dimensions: type5 Table 7 Hose dimensions: type6 Dimensions in millimetres Nominal bore Bore diameter Diameter over outer wire ply Outside diameter of finished hose min.
36、 max. min. max. min. max. 6,3 10 12,5 16 19 25 31,5 38 51 6,2 9,3 12,3 15,5 18,6 25,0 31,4 37,7 50,4 7,0 10,1 13,5 16,7 19,8 26,4 33,0 39,3 52,0 14,1 16,9 19,4 23,0 27,4 34,5 45,0 51,4 64,3 15,3 18,1 21,0 24,6 29,0 36,1 47,0 53,4 67,3 17,1 20,6 23,8 27,4 33,0 38,5 49,2 55,6 68,2 18,7 22,2 25,4 29,0
37、33,4 40,9 52,4 58,8 71,4 Dimensions in millimetres Nominal bore Bore diameter Diameter over outer wire braid Outside diameter of finished hose min. max. min. max. min. max. 12,5 19 25 31,5 38 51 12,4 18,8 25,0 31,4 37,8 50,5 13,0 19,3 25,8 32,1 39,0 51,7 20,6 27,8 34,7 40,8 47,4 60,1 21,6 28,8 36,0
38、42,0 48,7 61,3 25,8 33,0 39,9 46,7 53,3 66,0 27,1 34,3 41,4 48,3 54,9 67,6 Dimensions in millimetres Nominal bore Bore diameter Diameter over outer wire ply Outside diameter of finished hose min. max. min. max. min. max. 12,5 19 25 31,5 38 51 12,3 18,6 25,0 31,4 37,7 50,4 13,5 19,8 26,4 33,0 39,3 52
39、,0 21,8 27,6 34,4 40,9 47,8 62,2 23,4 29,2 36,0 42,9 49,8 64,2 24,6 31,4 37,5 43,9 51,9 66,5 26,2 33,0 39,9 47,1 55,1 69,7 Dimensions in millimetres Nominal bore Bore diameter Diameter over outer wire ply Outside diameter of finished hose min. max. min. max. min. max. 19 25 31,5 38 51 18,6 25,0 31,4
40、 37,7 50,4 19,8 26,4 33,0 39,3 52,0 28,2 34,9 45,6 53,1 66,9 29,8 36,4 48,0 55,5 69,3 31,0 37,6 48,3 55,8 69,5 33,2 39,8 51,3 58,8 72,7ISO6805:1994(E) 4 BSI 12-1999 6 Pressure requirements 6.1 The maximum working pressure of the hose shall comply with the requirements of Table 8. 6.2 The hoses shall
41、 withstand without damage or failure a proof test pressure of twice the maximum working pressure given in Table 8 and maintained by the method described in ISO1402. 6.3 The hoses shall be capable of achieving a minimum burst pressure of four times the maximum working pressure given in Table 8, when
42、tested in accordance with the burst pressure test described in ISO1402. 7 Minimum bend radius and change inlength at maximum working pressure 7.1 The hose shall be capable of performing at maximum working pressure when curved to a radius not smaller than that given in Table 9. NOTE 2Should any porti
43、on of the hose be curved to a radius smaller than the specified bend radius, the performance capability of the hose is reduced. 7.2 The change in length at the maximum working pressure shall not be greater than% for all types, when measured in accordance with the change-in-length test described in I
44、SO1402. Table 8 Maximum working pressure Table 9 Minimum bend radius2 +4 Nominal bore Maximum working pressure Type1 Type2 Type3 Type4 Type5 Type6 mm MPa bar MPa bar MPa bar MPa bar MPa bar MPa bar 5 6,3 10 12,5 16 19 25 31,5 38 51 41,5 40,5 33,0 27,5 25,0 21,5 16,5 12,5 9,0 8,0 415 405 330 275 250
45、215 165 125 90 80 38,0 32,7 27,5 21,5 18,7 16,7 13,2 380 327 275 215 187 167 132 45,0 44,5 41,5 35,0 35,0 28,0 21,0 18,5 16,5 450 445 415 350 350 280 210 185 165 36,2 27,6 21,5 17,2 14,6 11,2 362 276 215 172 146 112 55,0 42,0 38,0 32,5 29,0 25,0 550 420 380 325 290 250 34,5 34,5 34,5 34,5 34,5 345 3
46、45 345 345 345 Dimensions in millimetres Nominal bore Minimum bend radius Type1 Types2 and4 Type3 Type5 Type6 5 6,3 10 12,5 16 19 25 31,5 38 51 90 100 130 180 200 240 300 420 500 630 100 130 150 190 230 300 380 450 600 150 180 230 250 300 340 460 560 660 200 280 350 455 560 710 240 305 420 510 635IS
47、O6805:1994(E) BSI 12-1999 5 8 Length of hose 8.1 The hose shall be supplied in lengths as specified by the purchaser, subject to a tolerance on the specified lengths of2%. 8.2 When no specific lengths are ordered, the percentages of different lengths in any given bulk delivery shall be: a) over13m:
48、not less than65% b) 7,5m to13m: not more than35% c) 1m to7,5m: not more than10% No length shall be less than1m. 9 Impulse test requirements 9.1 When tested in accordance with the requirements of ISO6803 with the following parameters for test pressure: types1 to5:133% of the maximum working pressure
49、given in Table 8, type6:120% of the maximum working pressure given in Table 8, hose assemblies shall withstand a minimum number of impulse cycles as follows: type1:200000 cycles, types2 and4:100000 cycles, types3 and5:400000 cycles, type6:500000 cycles. 9.2 The oil circulating in the hose assemblies under test shall be maintained at a temperature of 100 C 5 C for types1,3 and5; 55 C 5 C f
