1、CEN EN*735 95 = 3404589 OLL5148 230 m BRITISH STANDARD Overall dimensions of rotodynamic pumps - Tolerances The European Standard EN 735 : 1995 has the status of a British Standard. ICs 23.080 SS EN 735 : 1995 CEN ENx735 95 3404589 0115149 177 m Standards Board and comes into Amd. No. Date effect on
2、 15 December 1995 0 MI 1995 BS EN 736 : 1996 Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee MCE/6, Pumps and pump testing, upon which the foliowing bodies were represented: British Chemical Engineering Cont
3、ractors Association British Hydromechanics Research Association British Pump Manufacturers Association Department of Trade and Industry (National Engineering Laboratory) Electricity Association Energy Industries Council UK offshore Operators Association Limited Water Services Association of England
4、and Wales The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Engineering Equipment and Materials Users Association Process Plant Association South West Water Authority The following BSI references relate to the work on this standard: Committ
5、ee reference MCEIG Draft for comment 92175553 DC ISBN O B80 24767 8 CEN ENS735 95 3404589 0115150 999 BS EN 735 : 1996 Contents Committees responsible page inside front cover National foreword ii Foreword 2 %xt of EN 735 3 i CEN EN*735 95 W 3404589 0115151 825 BS EN 735 : 1995 National foreword This
6、 British Standard has been prepared by kchnical Committee MCE/6 and is the English language version of EN 735 Oveml1 dimemions of rotodynamic pumps - llerances, published by the European Committee for Standardization (CEN), in the development of which the UK took an active part. Cross-references Pub
7、lication referred to Corresponding British Standard IS0 496 : 1973 BS 5186 : 1975 Specqication for shqfit centre heights BS EN 22678 General tolerances IS0 2768-1 : 1989 part 1 : 1993 Iblerances for linear and angular (EN 22768-1 : 1993) dimnsions without indizvidual tolerance indications IS0 2768-2
8、 1989 Part 2 : 1993 Gemtrkal tolerances for features without (EN 22768-2 : 1993) individual tolemnce indications Compliance with a British Standard does not of itself confer immunity from legal obligations. ii EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 735 April 1995 ICs 23.080 Descriptors
9、: Rotodynamic pumps, dimensions, overall dimensions, dimensional tolerances English version Overall dimensions of rotodynamic pumps - Iblerances Dimensions dencombrement des pompes rotodynamiques - Toleranzen Tolrances AnschluBmaBe fr Kreiselpumpen - This European Standard was approved by CEN on 199
10、4-10-03. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obta
11、ined on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Central
12、Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Comm
13、ittee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1995 Copyright reserved to CEN members Ref. No. EN 735 : 1995 E CEN ENwi35 95 W 3404589 OLL5153 bT8 Page 2 EN 735 : 1995 Foreword This European Standard
14、has been prepared by SC4, Rotodynamic pumps, of CENIE 197, Pumps, the Secretariat of which is held by DIN, based on a proposal document, CEN/TC 197/SC 4 N 23, submitted by the European Committee of Pump Manufacturers (EUROPUMP) in December 1990, and was adopted for CEN enquiry at the CENITC 197/SC 4
15、 meeting on 1991-03-14 in Frankfurt. This European Standard shaii be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 1995, and conflicting national standards shall be withdrawn at the latest by October 1995. According to
16、 the CENICENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Itay, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents F%e Fo
17、re word 2 1 Scope 3 2 Normative references 3 3 End suction centrifugal pumps 3 4 suction centrifugal pumps 5 Rotodynamic pumps other than end CEN EN8735 95 = 3404589 OL1515Y 534 1 Scope This European Standard specifies the acceptable tolerances for overall dimensions of rotodynamic pumps with partic
18、ular requirements for horizontal, single stage, end suction centrifugal pumps. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications
19、 are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Page 3 EN 735 : 199
20、5 IS0 496 : 1973 Wwng and driven machines - ISOfR 775 : 1969 ends IS0 2768-1 : General tolerances 1989 Shuft heights Cylindrical and 1/10 conical shaft Part 1: Zkrances for linear and angular dimensions without individual tolerance indications part 2: Geometrical tolerances for features without indi
21、vidual tolerance indications IS0 2768-2 General tolerances 1989 3 End suction centrifugal pumps End suction centrifugal pumps with dimensions toleranced in accordance with this standard, shall have their dimensions within the appropriate tolerance band shown in table 1, as illustrated in figure 1. F
22、igure 1 illustrates a pictorial representation of an end-suction pump. Pumps to this standard do not need to correspond to this pictorial representation; only the indicated dimensions are to be as specified. Suc tion flange centre t W ! - * Shaft end centre line - f12 m p-j+ .- LL .-_- Baseplate -_
23、i Figure 1. Overai dimensions CEN EN*735 95 3404589 OLL5L55 470 page 4 EN 735 : 1995 “bble 1. Acceptable tolerances for overall dimensions Dimensions in miiimetres Basic standard Nominal dimension fielcacceptable tolerances Iblerance k: 0181 996 7001. In response to orders for international standard
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