1、BRITISH STANDARD BS EN 733:1995 End-suction centrifugal pumps, rating with10bar with bearing bracket Nominal duty point, main dimensions, designation system The European Standard EN 733:1995 has the status of a British Standard ICS 23.080BSEN733:1995 This British Standard, having been prepared under
2、 the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15December1995 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference MCE/6 Draft for comment 92/75554 DC ISBN 0 580 24771 6 Commi
3、ttees 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
4、British Pump Manufacturers Association Department of Trade and Industry (National Engineering Laboratory) Electricity Association UK Offshore Operators Association Limited Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, thro
5、ugh subcommittees and panels: Engineering Equipment and Materials Users Association Process Plant Association South West Water Authority Amendments issued since publication Amd. No. Date CommentsBSEN733:1995 BSI 12-1999 i Contents Page Committees responsible Inside front cover National foreword ii F
6、oreword 2 Text of EN 733 3BSEN733:1995 ii BSI 12-1999 National foreword This British Standard has been prepared by Technical Committee MCE/6 and is the English language version of EN733:1995, End-suction centrifugal pumps, rating with10 bar with bearing bracket Nominal duty point, main dimensions, d
7、esignation system, published by the European Committee for Standardization (CEN). EN 733 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British S
8、tandards 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, theEN title page, pages 2 to 6 and a back cover. This s
9、tandard 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 733 April 1995 ICS 23.080 Descriptors: Centrifugal pumps, designation, dimensions, perf
10、ormance evaluation, pressure tests, hydrostatic pressure English version End-suction centrifugal pumps, rating with10 bar with bearing bracket Nominal duty point, main dimensions, designation system Pompes centrifuges aspiration axiale PN 10 support sous corps de pompe Point de fonctionnement nomina
11、l, dimensions principales, systme de dsignation Kreiselpumpen mit axialem Eintritt PN 10 mit Lagertrger Nennleistung, Hauptmae, Bezeichungssystem 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 co
12、nditions 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 thr
13、ee 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 standards bodies of Au
14、stria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: r
15、ue de Stassart 36, B-1050 Brussels 1995 Copyright reserved to CEN members Ref. No. EN 733:1995 EEN733:1995 BSI 12-1999 2 Foreword This European Standard has been prepared by SC4, Rotodynamic pumps, of CEN/TC197, Pumps, of which the Secretariat is held by DIN, based on a proposal document, CEN/TC197/
16、SC4 N22, submitted by the European Committee of Pump Manufacturers (EUROPUMP) in December1990 and was adopted for CEN enquiry at the meeting of CEN/TC197/SC4 on1991-03-14 in Frankfurt. This European Standard shall be given the status of a national standard, either by publication of an identical text
17、 or by endorsement, at the latest by October1995, and conflicting national standards shall be withdrawn at the latest by October1995. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, Fr
18、ance, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Nominal duty point and main dimensions 3 4 Hydrostatic pressure test 3 5 Designation system 3 Ann
19、ex A (informative) Bibliography 6 Figure 1 Main dimensions 4 Table 1 Nominal duty point and main dimensions 5EN733:1995 BSI 12-1999 3 1 Scope This European Standard specifies the designations, nominal duty points and main dimensions of end-suction centrifugal pumps rated at10 bar. NOTEDepending on s
20、pecial circumstances e.g.temperature, materials, sealing of the shafts etc., excess operating pressure need not attain the value of the nominal pressure under any circumstances. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publicatio
21、ns. These normative references are cited at the appropriate place in the text and the publications 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
22、 undated references the latest edition of the publication referred to applies. ISO 7005-1:1992, Metallic flanges Part 1. Steel flanges. ISO 7005-2:1988, Metallic flanges Part 2: Cast iron flanges. ISO 7005-3:1988, Metallic flanges Part 3: Copper alloy and composite flanges. 3 Nominal duty point and
23、main dimensions The nominal duty point and main dimensions appropriate to the relevant pump designation shall be as given inTable 1 and as illustrated in Figure 1. Figure 1 illustrates a pictorial representation of an end suction centrifugal pump. Pumps to this standard do not need to correspond to
24、this pictorial representation; only the dimensions and direction of rotation are to be as specified. 4 Hydrostatic pressure test Hydrostatic pressure test is an internal pressure test using water. Hydrostatic test pressure shall be1,3 times the maximum discharge pressure but shall not exceed13 bar.
25、The relation between cold test pressure and hot operating pressure or extreme cold operating pressure, shall be the subject of agreements between purchaser and manufacturer. 5 Designation system Centrifugal pumps in accordance with this standard shall be designated as follows. The designation incorp
26、orates the type of pump, the number of the European Standard, and as illustrated in column1 ofTable 1, the outlet diameter and the nominal impeller diameter. EXAMPLE: An end suction centrifugal pump with outlet diameter of50mm and a nominal impeller diameter of250mm is designated: Centrifugal pump E
27、N 733 50 250.EN733:1995 4 BSI 12-1999 Figure 1 Main dimensionsEN 733:1995 BSI 12-1999 5 Table 1 Nominal duty point and main dimensions Size Nominal diameter of the impeller Nominal duty point Flange mounting dimensions for PN 10 b Pump dimensions mm Foot dimensions mm Shaft end dimensions mm 1450 mi
28、n 1 2900 min 1 Q H a Q H a m 3 /h m . m 3 /h m . DN a f h 1 h 2 b m 1 m 2 n 1 n 2 s 1 s 2 w x c d I mm (l/s) (l/s) Inlet mm Outlet mm for bolts 32125 125 6,3 5 12,5 20 50 32 80 360 112 140 50 100 70 190 140 M 12 M 12 260 100 24 50 32160 160 (1,75) 8 (3,5) 32 132 160 240 190 32200 200 12,5 50 160 180
29、 240 190 40125 125 12,5 5 25 20 65 40 80 360 112 140 50 100 70 210 160 M 12 M 12 260 100 24 50 40160 160 (3,5) 8 (7) 32 80 132 160 240 190 40200 200 12,5 50 100 160 180 265 212 40250 250 20 80 100 180 225 65 125 95 320 250 50125 125 25 5 50 20 65 50 100 360 132 180 50 100 70 240 190 M 12 M 12 260 10
30、0 24 50 50160 160 (7) 8 (14) 32 160 180 265 212 50200 200 12,5 50 160 200 265 212 50250 250 20 80 180 225 65 125 95 320 250 65125 125 50 5 100 20 80 65 100 360 160 180 65 125 95 280 212 M 12 M 12 260 100 24 50 65160 160 (14) 8 (28) 32 160 200 280 212 65200 200 12,5 50 180 225 320 250 140 65250 250 2
31、0 80 470 200 250 80 160 120 360 280 M 16 140 32 80 65315 315 32 125 225 280 400 315 340 80160 160 80 8 160 (45) 32 100 80 125 360 180 225 65 125 95 320 250 M 12 M 12 260 140 24 50 80200 200 (22,3) 12,5 50 470 180 250 345 280 80250 250 20 80 200 280 80 160 120 400 315 M 16 340 32 80 80315 315 32 250
32、315 100200 200 125 (35) 12,5 250 (70) 50 125 100 125 470 200 280 80 160 120 360 280 M 16 M 12 340 140 32 80 100250 250 20 80 140 225 280 400 315 100315 315 32 250 315 400 315 100400 400 50 530 280 355 100 200 150 500 400 M 20 370 140 42 110 125250 250 20 150 125 140 470 250 355 80 160 120 400 315 M
33、16 M 12 340 140 32 80 125315 315 200 (56) 32 530 280 355 100 200 150 500 400 M 20 370 140 42 110 125400 400 50 315 400 150315 315 315 32 200 150 160 530 280 400 100 200 150 550 450 M 20 M 12 370 140 42 110 150400 400 (87,5) 50 315 450 a The nominal delivery head values indicated for the nominal supp
34、ly values are approximate values only. The precise values may be found in the manufacturers literature. b According to ISO7005-1, ISO7005-2 and ISO7005-3 the permitted temperature range may be found in the manufacturers literature. c Dimension to be considered by the manufacturer in respect of remov
35、al of inner parts of the pump. The dimension x must not be identical with the distance between the shafts of the pump and the driving machine. The given dimension considers the use of flexible shaft couplings with spacer sleeve. The gap is necessary for the withdrawal of the rotor toward the driven
36、side.EN733:1995 6 BSI 12-1999 Annex A (informative) Bibliography ISO 228-1:1982, Pipe threads where pressure-tight joints are not made on the threads Part 1: Designation, dimensions and tolerances. ISO 496:1973, Driving and driven machines Shaft heights. ISO/R 775:1969, Cylindrical and 1/10 conical
37、shaft ends. ISO 3069:1974, End suction centrifugal pumps Dimensions of cavities for mechanical seals and for soft packaging.blankBS EN 733:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It
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