1、BRITISH STANDARD BS4C14:1991 ISO45:1990 Specification for Aircraft pressure refuelling connectorsBS4C 14:1991 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 30
2、August1991 BSI10-1999 The following BSI references relate to the work on this standard: Committee reference ACE/14 Draft for comment89/70706 DC ISBN 0 580 19918 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Policy
3、 Committee (ACE/-) to Technical Committee ACE/14, upon which the following bodies were represented: British Independent Steel Producers Association Civil Aviation Authority (Airworthiness Division) Federation of Wire Rope Manufacturers of Great Britain Institute of Petroleum Ministry of Defence Soci
4、ety of British Aerospace Companies Limited Stainless Steel Wire Industry Association Amendments issued since publication Amd. No. Date CommentsBS4C14:1991 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Requirements 1 Figure 1 Pressure refuellin
5、g connections 2 Figure 2 Access clearance 4 Table 1 Dimensions for pressure refuelling connections 3 Publication(s) referred to Inside back coverBS4C14:1991 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee. It is
6、 identical with ISO45:1990 “Aircraft Pressure refuelling connections” published by the International Organization for Standardization (ISO), and constitutes a revision of BS3C14:1982 which is withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users
7、of British Standards are responsible for their correct application. Compliance 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, pages1 to4, an inside back cover and a back c
8、over. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4C14:1991 BSI 10-1999 1 1 Scope This International Standard specifies the basic dimensions and access clearance for aircraft p
9、ressure refuelling connections. 2 Requirements 2.1 Basic dimensions The basic dimensions for aircraft pressure refuelling connections shall be in accordance with those shown in Figure 1 and given in Table 1. 2.2 Access clearance The clearance allowed around the connector shall be in accordance with
10、Figure 2. BS4C14:1991 2 BSI 10-1999 NOTE 1The valve face shall be flat within diameter A and no part of the valve shall extend below this face. Configuration of thevalve above this face is optional. NOTE 2The valve is spring-loaded. Loading at36,52mm(1,438in) travel shall not exceed222N(50lbf). NOTE
11、 3When the connection is in an overhead horizontal surface (for example under the wing) one bayonet lug shall be centrallylocated towards the normal approach of the operator for the refuelling. Except where the aircraft connection is mounted on a horizontal surface, one of the three lugs shall be ce
12、ntrally located atthelowest point of the connection. Figure 1 Pressure refuelling connectionsBS4C14:1991 BSI 10-1999 3 Table 1 Dimensions for pressure refuellingconnections Dimension mm in A 57,2min. 2,25min. B C D E a 36,52 1,438 F G H J K 0,79 0,031 L b 6,15min. 0,242min. M 8,46max. 0,333max. N P
13、S 2,29 0,25 0,09 0,01 T V W 0,05 0,002 X 0,13 0,005 r 0,38max. 0,25min. 0,015max. 0,010min. r 1 0,4max. 0,016max. r 2 0,51max. 0,02max. r 3 1max. 0,04max. a Minimum valve travel. b Minimum extent of slot of dimension H. 63,5 +0,25 0 2,5 +0,01 0 76,2 +0,127 0 3 +0,005 0 88,77 0 1,32 3,495 0 0,052 12,
14、7 0 0,25 0,5 0 0,01 6,27 0 0,13 0,247 0 0,005 6,35 +0,25 0 0,25 +0,01 0 3,18 +0,12 0 0,125 +0,005 0 12,7 0 0,8 0,5 0 0,032 6,35 0 0,4 0,25 0 0,016 101,47 0 1,45 3,995 0 0,057 13,1 +0,81 0 0,516 +0,032 0BS4C14:1991 4 BSI 10-1999 Dimension mm in max. min. max. min. A B C D E F G 63,5 44,45 152,4 165,1
15、 381 355,6 14,48 2,5 1,75 6 6,5 15 14 0,57 NOTE 1These dimensions permit “side-by side” installation of aircraft connections on355,6mm(14in) centres where this is a requirement. NOTE 2For design purposes, a hose of76,2mm(3in) outside diameter with a minimum bend radius of304,8mm(12in) shall be assum
16、ed. Figure 2 Access clearanceBS4C14:1991 BSI 10-1999 Publication(s) referred to See national foreword.BS4C14:1991 ISO45:1990 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK vie
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