BS-EN-734-1995.pdf

BRITISH STANDARD BS EN 734:1995 Side channel pumps PN 40 Nominal duty point, main dimensions, designation system The European Standard EN 734:1995 has the status of a British Standard ICS 23.080 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 734:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 1995 © BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference MCE/6 Draft for comment 92/7555 DC ISBN 0 580 24766 X 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 following bodies were represented: British Chemical Engineering Contractors 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 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 Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 734:1995 © BSI 11-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 7343 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 734:1995 ii © BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee MCE/6 and is the English language version of EN 734:1995 Side channel pumps PN 40 Nominal duty point, main dimensions, designation system, published by the European Committee for Standardization (CEN), in the development of which the UK has played an active part. 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. 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, pages i and ii, the EN title page, pages 2 to 4 and a back cover. 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. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 734 April 1995 ICS 23.080 Descriptors: Pumps, designation, dimensions, performance evaluation, pressure tests, hydrostatic pressure English version Side channel pumps PN 40 Nominal duty point, main dimensions, designation system Pompes à canal latéral PN 40 Point de fonctionnement nominal, dimensions principales, système de désignation Seitenkanalpumpen PN 40 Nennleistung, Hauptmaße, Bezeichunungssystem This European Standard was approved by CEN on 1994-10-03. CEN members are bound to comply with the CEN/CENELEC 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 obtained 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 Central Secretariat has the same status as the official versions. CEN members are the national bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 734:1995 E Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 734:1995 © BSI 11-1999 2 Foreword This European Standard has been prepared by SC4, Rotodynamic pumps, of CEN/TC 197, Pumps, the Secretariat of which is held by DIN, based on a proposal document, CEN/TC 197/SC 4 N 21, submitted by the European Committee of Pump Manufacturers (EUROPUMP) in December 1990, and was adopted for CEN enquiry at the CEN/TC 197/SC 4 meeting on 1991-03-14 in Frankfurt. This European Standard shall 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. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Definition3 3Nominal duty point and main dimensions3 4Hydrostatic pressure test3 5Designation3 Figure 1 Main dimensions3 Table 1 Nominal duty point and main dimensions4 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 734:1995 © BSI 11-19993 1 Scope This European Standard specifies the designations, nominal duty point and main dimensions of heavy duty side channel pumps with a nominal pressure of 40 bar. NOTEDepending on special circumstances, e.g. temperature, materials, sealing of the shaft etc., excess operating pressure need not attain the value of the nominal pressure under any circumstances. 2 Definition For the purposes of this standard, the following definition applies. 2.1 side channel pumps liquid pumps which evacuate the inlet pipe and thereby automatically draw in the liquid to be pumped without the aid of ancillary equipment. They must be able to pump a liquid gas mixture with a gas content of at least 30 % at the suction nozzle, with steady operation 3 Nominal duty point and main dimensions The nominal duty point and main dimensions appropriate to the relevant pump designation shall be as given in Table 1 and as illustrated in Figure 1. Figure 1 illustrates a pictorial representation of a side channel pump. Pumps to this standard do not need to correspond to this pictorial representation; only the indicated dimensions and direction of rotation are to be as specified. 4 Hydrostatic pressure test Hydrostatic pressure test: internal pressure test using water. Hydrostatic test pressure shall be 1.3 times the maximum discharge pressure but shall not exceed 52 bar. The relation between cold test pressure and hot operating pressure, or extreme cold operating pressure, shall be the subject of agreement between purchaser and manufacturer. 5 Designation Side channel pumps in accordance with this standard shall be designated as follows. The designation incorporates the type of pump, the number of the European Standard, the size and number of stages. Example. A side channel pump size 50 with two stages is designated: Side Channel Pump EN 734 50 02 Figure 1 Main dimensions Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 734:1995 4 © BSI 11-1999 Table 1 Nominal duty point and main dimensions SizeNumber of stages Nominal duty point at 1 450 min1 (. 24s1) DNbad k6 s screws fh1h2lm1m2n1n2v Nominal flowa Nominal heada m3/hl/smmmmmmmmmmmmmmmmmmmmmmmmmmm 20011,250,35202012014M1017010010025270236140105112 0240 c 20d34d34d34d 31012,50,720321461920011213240314280170135133 0240 c 20d40d40d40d 320151,42032146314280 0240 c 20d40d40d40d 4001102,820401602419513214045303269195140140 0240215358324 c 20d55d55d55d 5001164,5205017528M1223716016550359331215170159 0240250444406 c 20d75d75d75d 650125720651953226218018065412374245195172 0240285502464 c 20d90d90d90d NOTEInformation on keys and keyways is to be taken from the manufacturers data. a The nominal flow and associated nominal head are standard values which refer to the pumping of liquid. b Inlet and outlet connections and flange mounting dimensions according to PN 40. c The number of stages can be more than two, the required number of stages can be obtained from the required head and will be shown in the manufacturers data. See footnote 4. d With each additional stage the nominal head and the length of the pump, for dimensions a 1, m1 and m2, increase by the values shown. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 734:1995 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. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. 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This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 03:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI