1、BRITISH STANDARD BS ISO 9803-2:2007 Vacuum technology Mounting dimensions of pipeline fittings Part 2: Knife-edge flange type ICS 23.160 BS ISO 9803-2:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007 ISBN 978 0 580 5
2、2951 1 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 9803-2:2007. The UK participation in its preparation was entrusted to Technical Committee MCE/8, Compressors, pneumatic tools, pneumatic machines and vacuum technology. A list of organizations rep
3、resented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendm
4、ents issued since publication Amd. No. Date Comments Reference number ISO 9803-2:2007(E)INTERNATIONAL STANDARD ISO 9803-2 First edition 2007-05-15 Vacuum technology Mounting dimensions of pipeline fittings Part 2: Knife-edge flange type Technique du vide Dimensions de montage des raccords de conduit
5、 Partie 2: Brides de type guillotine BS ISO 9803-2:2007ii iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical comm
6、ittees. 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
7、International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft Internation
8、al Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be th
9、e subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9803-2 was prepared by Technical Committee ISO/TC 112, Vacuum technology. This first edition of ISO 9803-2, together with ISO 9803-1, cancels and replaces ISO 9803:1993, which has been te
10、chnically revised. ISO 9803 consists of the following parts, under the general title Vacuum technology Mounting dimensions of pipeline fittings: Part 1: Non knife-edge flange type Part 2: Knife-edge flange type BS ISO 9803-2:2007iv Introduction ISO 9803:1993 defined only those pipeline fittings whos
11、e flanges are non-bakable, as defined in ISO 1609 and ISO 2861-1. This revision divides ISO 9803 into two parts: ISO 9803-1, in which fittings with non-bakable flanges are defined, and this part of ISO 9803, in which fittings with bakable flanges as specified in ISO 3669 are defined. This part of IS
12、O 9803 deals with dimensions of pipeline fittings whose flanges are of bakable type, as defined in ISO 3669. BS ISO 9803-2:20071 Vacuum technology Mounting dimensions of pipeline fittings Part 2: Knife-edge flange type 1 Scope This part of ISO 9803 specifies mounting dimensions for vacuum pipeline f
13、ittings (elbows, tees and crosses) of knife-edge flanges for nominal bores from 16 mm to 200 mm. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
14、edition of the referenced document (including any amendments) applies. ISO 3669, Vacuum technology Bakable flanges Dimensions 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3669 apply. 4 Requirements 4.1 Mounting dimensions of the vacuum pipeline fi
15、ttings shall be as specified in Table 1. See Figures 1 to 3. 4.2 Flange dimensions shall be as specified in ISO 3669. One or more flange should be rotatable. 4.3 Bolt holes in the flanges specified in ISO 3669 shall be positioned as shown in Figure 4. Angle is a function of the number of bolt holes.
16、 BS ISO 9803-2:20072 Dimensions in millimetres Key e edge dimension Figure 1 Elbow Dimensions in millimetres Key e edge dimension H length Figure 2 Tee BS ISO 9803-2:20073 Dimensions in millimetres Key e edge dimension H length Figure 3 Cross Key = 360 total number of bolt holes Figure 4 Position of
17、 bolt holes BS ISO 9803-2:20074 Table 1 Dimension of pipeline fittings Dimensions in millimetres Edge dimension, e Length, H Nominal bore tolerance tolerance Perpendicularity or parallelism tolerance for the two mating faces 16 38 76 40 63 126 1 63 105 210 100 135 1,5 270 1,5 160 167 334 200 203 2 4
18、06 2 030 BS ISO 9803-2:20075 Bibliography 1 ISO 1609, Vacuum technology Flange dimensions 2 ISO 2861-1, Vacuum technology Quick-release couplings Dimensions Part 1: Clamped type 3 ISO 9803-1, Vacuum technology Mounting dimensions of pipeline fittings Part 1: Non knife-edge flange type BS ISO 9803-2:
19、2007BS ISO 9803-2:2007 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revi
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