BS EN 733.pdf

BRITISH STANDARD

End-suction centrifugal pumps, rating with 10 bar with bear bearin ing g bra brack cket et — 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

BS EN 733:1995

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 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

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 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

 Amendments issued since publication

 Amd. No.

Date

Comments

BS EN 733:1995

Contents Committees responsible National foreword Foreword Text of EN 733

© BSI 12-1999

Page Inside front cover ii 2 3

i

BS EN 733:1995

National foreword This British Standard has been prepared by Technical Committee MCE/6 and is the English language version of EN 733:1995, End-suction centrifugal pumps, rating with 10 bar with bearing bracket — Nominal duty point, main dimensions, designation system , published by the European Committee for Standardization

(CEN). EN 733 was produced as a result of international discussions in which the United Kingdom took 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 6 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. ii

© BSI 12-1999

EUROPEAN STANDARD

EN 733

NORME EUROPÉENNE  April 1995

EUROPÄISCHE NORM ICS 23.080

Descriptors: Centrifugal pumps, designation, dimensions, performance e valuation, pressure tests, hydrostatic pressure

English version

End-suction centrifugal pumps, rating with 10 bar with bearing bracket — Nominal duty point, main dimensions, designation system

Pompes centrifuges à aspiration axiale PN 10 à support sous corps de pompe — Point de fonctionnement nominal, dimensions principales, système de désignation

Kreiselpumpen mit axialem Eintritt PN 10 mit Lagerträger — Nennleistung, Hauptmaße, 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 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 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 Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1995 Copyright reserved to CEN members

Ref. No. EN 733:1995 E

EN 733:1995

Foreword

Contents

This European Standard has been prepared by SC 4, Rotodynamic pumps, of CEN/TC 197, Pumps, Foreword of which the Secretariat is held by DIN, based on a 1 Scope proposal document, CEN/TC 197/SC 4 N 22, 2 Normative references submitted by the European Committee of Pump Manufacturers (EUROPUMP) in December 1990 3 Nominal duty point and main and was adopted for CEN enquiry at the meeting of dimensions CEN/TC 197/SC 4 on 1991-03-14 in Frankfurt. 4 Hydrostatic pressure test This European Standard shall be given the status of 5 Designation system a national standard, either by publication of an  Annex A (informative) Bibliography identical text or by endorsement, at the latest by Figure 1 — Main dimensions October 1995, and conflicting national standards shall be withdrawn at the latest by October 1995. Table 1 — Nominal duty point and main dimensions 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.

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© BSI 12-1999

EN 733:1995

1 Scope This European Standard specifies the designations, nominal duty points and main dimensions of end-suction centrifugal pumps rated at 10 bar. NOTE Depending on special 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 publications. 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 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.

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 not 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 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 designated: Centrifugal pump EN 733 – 50 – 250.

ISO 7005-3:1988, Metallic flanges — Part 3: Copper alloy and composite flanges.

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 an end suction centrifugal pump. Pumps to this standard do not need to correspond to this pictorial representation; only the dimensions and direction of rotation are to be as specified.

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EN 733:1995

Figure 1 — Main dimensions

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 © B  S  I   1  2  -1   9   9   9 

Table 1 — Nominal duty point and main dimensions

Size

Nominal diameter of the impeller

mm

Nominal duty point 1 450 min –1 2 900 min –1 Q  Q  H a H a

m3/h (l/s)

m

6,3 (1,75)

m3/h .

32–125 32–160 32–200 40–125 40–160 40–200 40–250 50–125 50–160 50–200 50–250 65–125 65–160 65–200 65–250 65–315 80–160 80–200 80–250 80–315 100–200

125 160 200 125 160 200 250 125 160 200 250 125 160 200 250 315 160 200 250 315 200

100–250 100–315 100–400 125–250

250 315 400 250

5 8 12,5 12,5 5 (3,5) 8 12,5 20 25 5 (7) 8 12,5 20 50 5 (14) 8 12,5 20 32 80 8 (22,3) 12,5 20 32 125 12,5 (35) 20 32 50 20

125–315 125–400 150–315 150–400

315 400 315 400

200 (56) 315 (87,5)

32 50 32 50

(l/s)

m

12,5 20 (3,5) 32 50 25 20 (7) 32 50 80 50 20 (14) 32 50 80 100 20 (28) 32 50 80 — — 160 32 (45) 50 80 — — 250 50 (70) 80 — — —

—

—

—

Flange mounting dimensions for PN 10b DN

.

Inlet

mm

a

mm

32

65

40

65

50

80

65

125

150

200

f 

h1

h2

80

100

125

150

Shaft end dimensions

Foot dimensions

mm

mm

b

m1

m2

n1

n2

Outlet

50

100

Pump dimensions

mm

s1

s2

w

x c

d

I 

for bolts

80 360 112 132 160 80 360 112 80 132 100 160 100 180 100 360 132 160 160 180 100 360 160 160 180 470 200 125 225 125 360 180 180 470 200 250 125 470 200

140 160 180 140 160 180 225 180 180 200 225 180 200 225 250 280 225 250 280 315 280

50 100

140

225 250 530 280 140 470 250

280 400 315 400 355 100 200 150 500 355 80 160 120 400

530 280 315 160 530 280 315

355 100 200 150 500 400 M 20 370 140 42 400 400 100 200 150 550 450 M 20 M 12 370 140 42 450

50 100 65 125 50 100 65 125 65 125 80 160

70 190 240 240 70 210 240 265 95 320 70 240 265 265 95 320 95 280 280 320 120 360 400 95 320 345 120 400

140 190 190 160 190 212 250 190 212 212 250 212 212 250 280 315 250 280 315

M 12 M 12 260 100 24

50

M 12 M 12 260 100 24

50

M 12 M 12 260 100 24

50

M 12 M 12 260 100 24

50

140 140 32

80

M 16

340 M 12 M 12 260 140 24

50

M 16

32

80

80 160 120 360 280 M 16 M 12 340 140 32

80

65 125 80 160

340

315 315 400 M 20 370 140 42 315 M 16 M 12 340 140 32

110 80 110 110

a The nominal delivery head values indicated for the nominal supply values are approximate values only. The precise values may be found in the manufacturer’s literature. b According to ISO 7005-1, ISO 7005-2 and ISO 7005-3 the permitted temperature range may be found in the manufacturer’s li terature.

c Dimension to be considered by the manufacturer in respect of removal of inner parts of the pump. The dimension x  must not be identical with the distance between the shafts of the  5 

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 side.

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EN 733:1995

 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 shaft ends . ISO 3069:1974, End suction centrifugal pumps — Dimensions of cavities for mechanical seals and for soft  packaging .

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© BSI 12-1999

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BS EN 733:1995

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