1、BRITISH STANDARD End-suction centrifugal pumps, rating with 10 bar with bearing bracket - Nominal duty point, main dimensions, designation system The European Standard EN 733 : 1995 has the status of a British Standard ICs 23.080 BS EN 733 : 1995 CEN EN*733 95 w 3404589 OLL5L29 389 Amd. No. BS EN 73
2、3 : 1995 Date lx affected 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 O BSI 1995 Committees responsible for this British Standard The preparation of
3、 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 an
4、d 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, through subcommittees and panels: Engineering Equipment and Mater
5、iais Users Association Process Plant Association South West Water Authority Amendments issued since publication The following BSI references relate to the work on this standard: Committee reference MCEIG Draft for comment 92/75554 DC ISBN O 580 24771 6 CEN ENx33 95 m 3404589 OLL5130 OTO m BS EN 733
6、: 1995 Contents Committees responsible National foreword Page Inside front cover ii Foreword %xt of EN 733 2 3 i CEN EN*733 95 = 3404589 OLL5131 T37 9 BS EN 733 : 1995 National foreword This British Standard has been prepared by Ichnical Committee MCE/6 and is the English language version of EN 733
7、: 1995, End-suction centm only the dimensions and direction of rotation are to be as specified. Page 3 EN 733 : 1995 4 Hydrostatic pressure test Hydrostatic pressure test is an internal pressure test using water. Hydrostatic test pressure shall be 1,3 times the maximum discharge pressure but shall n
8、ot exceed 13 bar. 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
9、designation incorporates the type of pump, the number of the European Standard, and as illustrated in column 1 of table 1, the outlet diameter and the nominal impeller diameter. EXAMPLE: An end suction centrifugal pump with outlet diameter of 50 mm and a nominal impeller diameter of 250 mm is design
10、ated: Centrifugal pump EN 733 - 50 - 250. CEN ENt733 75 3404589 OLL5L35 682 Page 4 EN 733 : 1996 DN 1) Rear foot bearing housing at manufacturers discretion Fgure 1. Main dimensions CEN EN*733 95 = 3404589 011513b 519 Page 5 EN 733:1995 m 1 2 O m - Cu m d N * N d N 1% c.1 m I 3 2 3 3 3 2 O 0; O0 8%Z
11、 I 3 0 N - a N 3 Co N o N FI E N 3 E N d a 2 E 2 E 6m -I P 8 L c l- N 3 I4 E 3 E - m Cu m x O 2 3 IB O 2 3 E: I oomoo aohlmm 4Cuc.ICum i;:; oooom m O m O m 2 .B 1 Ba 3 m O Co m I 8 I5 O cl cj I 8 m 2 I“ Cu m u: m Co m 2 u: m W m Co O q$ Cumma -rr 4 11 E * mmmu 53 m G- Co- v O m Cu 5: 2 2 - CEN ENr73
12、3 95 = 3404589 0115137 455 page 6 EN 733 : 1996 Annex A (informative) Bibliography IS0 228-1 : 1982 pipe threads where mm-tht joznts are not made on the threads - Rwt 1: Designatwn, dimensions and tolerances Driving and driven machines - w WhtS sw ends Is0 496 : 1973 ISO/R 775 : 1969 Cylindricul and
13、 1/10 conkul IS0 3069 : 1974 End suctwn c mX: 0181 996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. information on standards BSI provides a wide range of
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