1、CEN EN*734 95 m 3404589 OLL5L39 228 m BRITISH STANDARD 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 BS EN 734 : 1995 CEN EN*734 95 3404589 Oll5140 T4T BS EN 734 : 1996 Committees
2、 responsible for this British Standard The preparation of this British Standard was entrusted to %chnical Committee MCE/6, Pumps and pump testing, upon which the following bodies were represented : British Chemical Engineering Contractors Association British Hydromechanics Research Association Briti
3、sh 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
4、of the standard, through subcommittees and panels: Engineering Equipment and Materials Users Association Process Plant Association South West Water Authority This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Stan
5、dards Board and comes into effect on 15 December 1995 O BSI I995 Amendments issued since publication No. I Date I *xt affected The following BSI references relate to the work on this standard: Committee reference MCE/G Draft for comment 92/7666 DC ISBN O MIO 24766 X BS EN 734 : 1995 Contents page Co
6、mmittees responsible Inside front cover National foreword ii Foreword 2 Rxt of EN 734 3 i - CEN ENm734 95 3404589 OLL5142 8L2 W BS EN 734 : 1995 Nat ional foreword This British Standard has been prepared by Qchnical Committee MCE/6 and is the English language version of EN 734 : 1995 Side channel pu
7、mps 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. Compliance with a British Standard does not of itself confer immunity from legal obligations. ii CEN EN*73
8、4 95 3404589 OLL5L43 759 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE 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, designati
9、on system Pompes canal latral PN 40 - Point de fonctionnement nominal, dimensions principales, systme de dsignation Seitenkanalpumpen PN 40 - Nennleistung, HauptmaBe, Bezeichunungssystem This European Standard was approved by CEN on 1994-10-03. CEN members are bound to comply with the CENKENELEC Int
10、ernal 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 memb
11、er. 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
12、 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 Comit Europen de Normalisation Europisches Komitee fr
13、 Normung Central Secretariat: rue de Stassart 36, B-1060 Brussels O 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 CEN EN*734 95 3404589 OLL5L44 b5 = page 2 EN 734 : 1995 Foreword This European
14、 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/
15、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. i
16、n accordance with the CENEENELEC 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 Kin
17、gdom. Contents Foreword 1 Scope 2 Definition 3 Nominal duty point and main dimensions 4 Hydrostatic pressure test 5 Designation kge 2 3 3 3 3 3 CEN ENr734 95 = 3404589 0115L45 521 1 Scope This European Standard specifies the designations, nominal duty point and main dimensions of heavy duty side cha
18、nnel pumps with a nominal pressure of 40 bar. NOTE. Depending 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 fol
19、lowing 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, wit
20、h steady operation. Page 3 EN 734 : 1995 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 press
21、ure, 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 siz
22、e and number of stages. Emmple. A side channel pump size 50 with two stages is designated: Side Channel Pump EN 734 - 50 - 02 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 illustrat
23、ed 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. Inlet t I- f Outlet a !/ON bDN Figure 1. Main dim
24、ensions CEN EN*734 95 m 3404589 OLLSL4b 4bB - page 4 EN 734 : 1996 Cu d 4 ml 2 O 2 5J u3 rl Cu 2 E 5 E O 2 u3 s: O 2 u3 E: e 2 u3 2 O 2 u3 5J 4 O 2 ? Cu 1% E s E In Cu O u3 u3 W O 2 2 O 3 u3 2 O 2 E s E Cu 2 O s Cu d rl I O 2 O 2 u3 E: O 8 E i E a 2 E: I rn Cu I I I 8 J3 Co_ Cu O u3 - O Cu - u3 $ *C
25、u *- It- u3 rl a! L?- Cu c: u3 2 Cu 8 00s I:I y 00s 00s Q) o .$1 O hl d m Cu m 1% O u3 CEN ENS734 %5 3404589 OLL5L47 3T4 BS EN 734: 1995 BSI 389 Chiswick High Road London W4 4AL 9512- 5- 0.5k- FP BSI - British Standards Institution BSI is the independent national body responsible for preparing Briti
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32、996 7002; Fax: O181 996 7001. copyright Copyright subsists in ali BSI publications and no part 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 details such as symbols and size,
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