BS M 66-1987 Specification for dimensions of 'Q' clamps (centre-mounted clamps) for fluid systems《液压系统 Q 形夹(中心安装)尺寸规范》.pdf

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1、ES1 Msbb 87 I1624669 0099557 7 I British Standard M66: 1987 IS0 8479-1986 UDC621.885.6 :621.643.2:629.73 0 British Standards Institution. No part of this publication may be photocopied or otherwise reproduced without the prior permission in writing of ES1 British Standard Aerospace Series : Specific

2、ation for Dimensions of o clamps (centre-mounted clamps) for fluid systems IS0 title: Aerospace - !O“ clamps (centre-mounted clamps) for fluid systems - Dimens,ns Srie arospatiale. Dimensions des colliers serrage central pour systmes de fluides - Spcifications Luft- und Raumfahrt-Reihe. Mae von Halt

3、erungsschellen mit zentraler Befestigung fr Fluidsysteme 0 National foreword This British Standard has been published under the direction of the Aerospace Standards Committee. It is identical with IS0 8479-1 986 Aerospace - “Q“ clamps (centre-mounted clamps) for fluid systems - Dimensions, published

4、 by the International Organization for Standardization (KO). IS0 8479 was produced as a result of international discussion in which the UK took an active part. Terminology and conventions. The text of the international standard has been approved as suitable for publication as a British Standard with

5、out deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal

6、marker. Wherever the words International Standard appear, referring to this standard, they should be read as British Standard. Cross-reference International standard Corresponding British Standard IS0 6771-1981 British Standard M 51 : 1982 Classification for pressure and temperature for fluid system

7、s and components (Identical) Compliance with a British Standard does not of itself confer immunity from legal obligations. a British Standards Institution British Standard M 66 : 1987 Clamp type I 1 Scope This International Standard specifies maximum and minimum dimensions for “O“ clamps (centremoun

8、ted clamps) installed by means of a bolt with a nominal diameter of 5 mm. Temperature range 1) min. max. The specified dimensions define a dimensional envelope. This International Standard shall not be considered as an inter- changeability standard. The tolerances for each type of clamp are to be de

9、fined in the parts standards drawings. 3 4 5 2 Field of application These clamps are intended for the installation, support and guiding of rigid tubing or hose assemblies used in aerospace equipment, - 55 + 200 - 55 + 320 - 55 + 400 NOTE - “o“ clamps of sizes larger than DN 50 are not suitable for S

10、upporting tubing or hose assemblies; they may be used for other equipment, e.g. electrical cables or looms. 3 Reference IS0 6771, Aerospace construction - Fluid systems and com- ponents - Pressure and temperature classifications. 4 Field of use “CY clamps (centre-mounted clamps) are classified into

11、six types according to the temperature range in which they are in- tended to be used (see table 11. 2 c i Table 1 TeInDeratures in dearees Celsius I 1 I - 55 I + 70 I I 2 I - 55 I + 135 I I 6 I - 55 I + 650 I 1) See IS0 6771, 5 Description The “Q“ clamp (centre-mounted clamp) is a “single-block“ or

12、a “multi-component“-type clamp. The “multi-component“-type clamp is provided as a metallic support with a plactomer or elastomer cushion or sheathing. 6 Dimensions The “Q clamp (centre-mounted clamp) shall be in accordance with the figure and table 2. The shape of the clamp illustrated in the figure

13、 does not purport to be the exact shape of the manufactured clamp. Table 2 only specifies those dimensions required to define the maximum envelope and the proper location of the tube relative to the mounting plane and fastening point. BSI M*bb 87 3b24bb9 0099559 O British Standard M 66 : 1987 Figure

14、 - Maximum envelope dimensions for “Q“ clamps (centre-mounted clamps) Table 2 ) Dimensions in millimetres Nominal diameter of tube DN) 03.2 o4 05 o6 08 10 12 14 16 18 20 22 25 28 32 36 40 45 E4 56 63 70 80 90 1w min. 10.6 11 11.5 12 13 14 15 17,5 18,5 19.5 20,5 21.5 23 24.5 26.5 28.5 30.5 34.5 37 40

15、,7 442 47.7 52,7 57,7 62,7 - A max. 12,3 12,7 13,2 13,7 14,7 15,7 16.7 19,l 20,l 21,l 22,1 23.1 24,6 26,8 28,8 32,8 343 37,4 41.1 44,6 48.1 53,1 58.1 63.1 - 30,a min. 2 2A 3,4 4,4 5.4 64 74 8.4 9,4 10.4 11.4 12.9 14,4 16,5 18,5 20,5 23 25,5 28.5 32 35,5 40,5 45,5 50,5 2,9 max. 6.4 6.8 7,3 7,8 8,8 9.

16、8 10,8 11,8 12,8 14,8 17,9 19.4 21,4 23.4 25,4 27,9 30,4 33,8 37,3 40,8 45,8 50,8 55.8 - 13.8 15.8 1) All dimensions in this table apply with the tube assembled H the tightened clamp. - L 3) max. 19 19 19 19 19 19 19 19 19 19 19 19 21 21 21 21 21 21 21 24 24 24 24 24 24 - 2) Diameters DN 14, 18, 22,

17、 28, 36, 45, 56, 70 and 90 are non-preferred sizes for tubing in fluid systems. 3) This dimension is an overall dimension which includes metal width and cushion or sheathing. Publication referred to See national foreword. n . - - -1- BSI M*bb 87 Lb24bb9 0099560 7 Amd. No. Date of issue This British

18、Standard, having been prepared under the direction of the Aerospace Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 June 1987. O British Standards institution, 1987 ISBN O 580 15994 9 British Standards Institution. Incorporated by Royal Charter,

19、 BSI is the independent national body for the preparation of British Standards. it is the UK member of the International Organization for Standardization and UK sponsor of the British National Committee of the international Electrotechnical Commission. In addition to the preparation and promulgation

20、 of standards, BSI offers specialist services including the provision of information through the BSi Library and Standardline Database; Technical Help to Exporters; and other services. Advice can be obtained from the Enquiry Section, BSI, Milton Keynes MK14 6LE, telephone 0908 221166, telex 825777.

21、Copyright. Users of British Standards are reminded that copyright subsists in all BSI publications. No part of this publication may be reproduced in any form without the prior permission in writing of BSI. This does not preclude the free use, in the course of implementing the standard, of necessary

22、details such as symbols and size, type or grade designations. Enquiries should be addressed to ce Publications Manager, BSI, Linford Wood, Milton Keynes Text affected an 00 o) British Standard M66: 1987 IS0 8479-1986 MK14 6LE. The number for telephone enquiries is 0908 220022 and for telex 825777. C

23、ontract requirements. 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. Revision of British Standards. British Standards are revised, when necessary, by the issue either of amendments o

24、r of revised editions. It is important that users of British Standards should ascertain that they are in possession of the latest amendments or editions. Automatic updating service. BSI provides an economic, individual and automatic standards updating service called PLUS. Details are available from

25、BSI Enquiry Section at Milton Keynes, telephone O908 221 166, telex 825777. Information on all BSI publications is in the BSI Catalogue, supplemented each month by 6SI News which is available to subscribing members of BSI and gives details of new publications, revisions, amendments and withdrawn sta

26、ndards, Any person who, when making use of a British Standard, encounters an inaccuracy or ambiguity, is requested to notify BSI without delay in order that the matter may be investigated and appropriate action taken. The following BSI references relate to the work on this standard: CommitJee-refere

27、nce ACE/- Draft for comment 85/74066 DC Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Committee (ACE/-) to subcommittee ACE/-/I, upon which the following bodies were represented: Clvil Aviation Authority (Airworthiness Division) institution of Production Engineers Ministry of Defence Society of British Aerospace Companies Limited British Standards Institution . 2 Park Street London WIA 2BS - Telephone 01-629 9000 Telex 266933 8706 -2-1.3k-B ACEI-

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