CVFVVertical multistage low−pressure pumps

2

AppliCAtion

Vertical pumps CVFV are intended for pumping drinking and service water or even slightly polluted or turbid water containing 5 g sludge or further impurities a per litre, with max. grain size 0.5 mm. Max. temperature of pumped water 60 °C. Permisible pH values range of pumped water 6−11 pH.

Pumps may be applied to water management i ndus t r y, wa te r supp l y se rv i ces and technological processes of various industrial plants requiring water supply.

Design

According to their constructional arrangements those pumps are produced in fol lowing workmanships:

Wet sump version − basic version for direct pumping from a water supply, with arrangement of discharge branches TEE − under the machine room floor and/or TEV − above the machine room floor.

Wet sump version − with an intermediate floor − for buildings where it is necessary to consider increasing water level in a sump and flooding the space below the floor, there the pump is provided with a special intermediate floor closure for max. upward pressures up to 4 bar. The closure is fixed, together with sealing it incorporates even the stator anchorage at the intermediate floor. On the closure there is the discharge branch TEE placed.

Dry sump version − the pump may be supplied with a foot−type suction elbow. The suction elbow sits at the bottom of the pump sump on adjustable supports facilitating both dismantling and access to the pump−set hydraulic part in the sump. Arrangement of

discharge branches may be both TEE and TEV.

Pump−set consists of following main parts:

• Hydraulic part• Column pipe• Discharche elbow• Bearing suspension assembly• Electric motor

Hydraulic part is represented by centrifugal single or multistage pump with shrouded impellers being provided with replaceable wear ring on the suction side.Shaft is supported on journal bearings, lubricated with a pumped water.

Column pipe connecting the hydraulic part with the discharge elbow and bearing suspension is of steel flanged pipes where the pump−set is carried in. Shaft is supported on guide bearings. Guide bearings in the piping wet parts are of rolling−contact type, grease−lubricated.The seal is of gland packing placed in the discharge elbow.

Bearing suspension assembly bears the pump−set, inclusive of the electric motor and further, it may take up the rotor axial thrust through a rolling−contact bearing, that may be oil or grease lubricated.

VERTICAL MULTISTAGE LOW−PRESSURE pUMps CVFV

3

MAteriAl optionsPump main parts are of following materials:

option „ln“

Suction and discharge cover grey cast iron

Stage casing grey cast iron

Discharge elbow grey cast iron

Guide−vaned casing, diffusers grey cast iron

Impellers, wear rings grey cast iron

Shaft carbon steel

Shaft sleeves stainless steel

Journal guide bearings steel and bearing rubber

Guide pipes steel

Material option „lU“Impellers are of chrome steel, materials of further parts are the same as with the „LN“ option.

Special optionSpecial material and design version may be manufactured following characteristics of pumped media and whole environment.These versions may be manufactured from carbon steel, stainless steel and so on.

4

Cross-seCtion oF pUMp WitH DisCHArge BrAnCH UNDER FLOOR − TEE

pArtiAl Cross-seCtion oF pUMp WitH DisCHArge BRANCH ABOVE FLOOR − TEV

106 Suction cover

107 Discharge casing

108 Stage casing

115 Suspension body

144 Discharge elbow

171 Diffuser

211 Pump shaft

212.1 Shaft of column pipe

212.3 Shaft of discharge elbow

213 Suspension shaft

230 Impeller

301 Rolling−contact bearing housing

321 Radial ball bearing

323 Thrust ball bearing

341 Motor stool

350 Bearing housing

360.1 Thrust bearing cover

360.3 Radial/journal bearing cover

383 Sliding guide bearing

451 Stuffing box

452 Gland

461 Gland packing

502 Wear ring

507 Thrower

526 Bearing hub

529.1 Shaft sleeve, suction side

529.2 Spacer sleeve

529.3 Shaft sleeve, discharge side

529.4 Shaft sleeve

529.5 Stuffing box sleeve

545.1 Stuffing box sleeve

545.2 Stage bush

545.3 Bearing of discharge casing

545.4 Column pipe bearing

636 Lubricating nipple

711 Column

840 Coupling

852 Screwed coupling

905 Connection bolt

920 Shaft nut

5

inForMAtiVe seleCtion CHArtoF CVFV pUMps

18

16

17 14

15

13

8

12

7

11 5

6

10 4

9

3

2

1

11

10

9

2

3

1

H [m] n = 980 min−1

150

100

75

50

40

30

20

15

10

7,5

5 20 30 40 50 75 100 150 200 300 400 500 750 1000 1500

Q [l.s−1]

1 150−CVFV−265/1 5 350−CVFV−460/1 9 150−CVFV−265/2 13 350−CVFV−460/2 17 350−CVFV−460/3 2 200−CVFV−305/1 6 400−CVFV−530/1 10 200−CVFV−305/2 14 400−CVFV−530/2 18 400−CVFV−530/3 3 250−CVFV−350/1 7 500−CVFV−600/1 11 250−CVFV−350/2 15 500−CVFV−600/24 300−CVFV−400/1 8 600−CVFV−700/1 12 300−CVFV−400/2 16 600−CVFV−700/2

H [m] n = 1450 min−1

100

75

50

40

30

20

15

10

7,5

5 20 30 40 50 75 100 150 200 300 400 500 750 1000

Q [l.s−1]

1 150-CVFV-265/12 200-CVFV-305/13 250-CVFV-350/14 300-CVFV-400/15 350-CVFV-460/1

6 400-CVFV-530/17 500-CVFV-600/18 600-CVFV-700/19 150-CVFV-265/2

10 200-CVFV-305/2

11 250-CVFV-350/212 300-CVFV-400/213 350-CVFV-460/214 400-CVFV-530/215 500-CVFV-600/2

16 600-CVFV-700/217 350-CVFV-460/318 400-CVFV-530/3

6

teCHniCAl AnD Design DAtA

Pump type

Speedmin−1

Number of stages

Discharge branchDN/PN

Max. stavební délka L (m)

Momentof inertia (kg/m2)

versions TEE, TEVWeight (kg)

VersionTEE

VersionTEV

Pump + suspension assembly

1 mof pipe column

shaftPump

SuspensionUV

SuspensionUP

1mof pipe column(shaft +

pipe)

Suction strainer

1 m of suction

pipe

150-CVFV--265-35

980 12

150/10150/10

2121

2121

0,1450,312

0,00100,0010

166282

217224

256253

2727

72 561450 1

2150/10150/10

2121

2121

0,1580,322

0,00100,0010

166282

217224

246253

2727

200-CVFV--305-40

980 12

200/10200/10

19,520

19,520

0,1780,363

0,00100,0010

193325

222240

345360

6060

75 521450 1

2200/10200/10

19,520

19,520

0,1920,376

0,00100,0020

193235

250265

360375

6062

250-CVFV--350-46

680 12

250/10250/10

2121

1919,5

0,4730,773

0,00160,0016

265457

390390

615615

7171

83 671450 1

2250/10250/10

2121

1919,5

0,4880,843

0,00160,0048

265457

390435

615670

7179,5

300-CVFV--400-52 980 1

2300/10300/10

2121,5

2020

0,7311,304

0,00200,0034

390669

440505

695870

94,597 83 87

350-CVFV--460-59 980

123

350/10350/10350/10

2121,522

20,52121

1,3602,8303,950

0,00260,01000,0100

57610191463

630840840

88511851185

122131131

110 122

400-CVFV--530-68 980

123

400/10400/10400/16

2222,523

2020,521

2,8405,0107,270

0,00860,01500,0250

81114281921

850980996

112313251678

126126126

155 109

500-CVFV--600-78 980 1

2500/10500/16

21,522

2121,5

5,52010,790

0,01500,0390

12152138

9001080

12601460

165177 155 111

600-CVFV--700-90 980 1

2600/10600/16

2222,5

20,521

10,49018,430

0,03000,0550

15392758

18271857

21232144

298298 190 229

7

BAsiC Version-Wet sUMp

DrY sUMp Version

Wet sUMp WitH interMeDiAte

FloorVersion

CONNECTING DIMENSIONS

CONNECTING DIMENSIONS

HOLE FOR FOUNDATION FRAME

GR

EA

SE

GR

EA

SE

8

DiMensions oF pUMps WitH DisCHArge BrAnCH tee

Pump type 150-CVFV 200-CVFV 250-CVFV 300-CVFV 350-CVFV 400-CVFV 500-CVFV 600-CVFV

A

Numb

er

of sta

ges 1

23

376553−

418622−

458691−

543808−

640945

1250

73510851435

8301230

−

8601313

−

B 200 280 300 350 400 500 650 700

C 450 450 500 670 670 754 754 870

DD1D2D3D4

DN 150DN 150DN 150DN 200DN 200

DN 200DN 200DN 200DN 200DN 200

DN 250DN 250DN 250DN 250DN 250

DN 300DN 300DN 300DN 300DN 400

DN 350DN 350DN 350DN 350DN 400

DN 400DN 400DN 400DN 400DN 500

DN 500DN 500DN 500DN 400DN 500

DN 600DN 600DN 600DN 500DN 700

∅ E 554 635 714 790 930 1030 1200 1380

∅ F 440 440 520 504 504 605 605 775

GG1

180160

180180

200200

220220

250230

250230

250230

280280

Hh

290250

320290

340340

410400

480400

540460

610500

780640

IJK

300220300

300220300

350250350

500370500

500350500

600450600

600450600

800580800

L L1 + L2 + A + L3 + C Basic version and version with intermediate floorL1 + L2 + A + L3 + K + J Dry sump version

L1185168521852685

3185368541854685

1235173522352735

3235373542354735

1285178522852785

3285378542854785

1280178022802780

3280378042804780

1280178022802780

3280378042804780

1310181023102810

3310381043104810

1420192024202920

3420392044204920

L2

122017202220272032203720422047205220

5720622072208220922010220112201222013220

125517552255275532553755425547555255

5755625572558255925510255112551225513255

130018002300280033003800430048005300

5800630073008300930010300113001230013300

135518552355285533553855435548555355

58556355735583559355

10355113551235513355

135018502350285033503850435048505350

58506350735083509350

10350113501235013350

140019002400290034003900440049005400

59006400740084009400

10400114001240013400

144019402440294034403940444049405440

59406440744084409440

10440114401244013440

156020602560306035604060456050605560

60606560756085609560

10560115601256013560

L3

2505007501000

125015002000

−

2505007501000

12501500

−−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

MNP

650 × 650900 × 900

125

700 × 7001000 × 1000

150

800 × 8001150 × 1150

175

900 × 9001300 × 1300

200

1000 × 10001300 × 1300

150

1300 × 13001650 × 1650

175

1300 × 13001650 × 1650

175

1450 × 14502000 × 2000

275

RS∅ T

760 × 760710 × 7108 × ∅18

810 × 810760 × 7608 × ∅23

920 × 920850 × 8508 × ∅23

1040 × 1040960 × 9608 × ∅23

1140 × 11401080 × 1080

8 × ∅27

1440 × 14401360 × 1360

8 × ∅30

1440 × 14401360 × 1360

8 × ∅30

1600 × 16001530 × 1530

8 × ∅32

∅ T1∅ U∅ V∅ U1∅ V1

12 × ∅18650900710740

12 × ∅237001000770810

12 × ∅238001150900960

12 × ∅239001130960

1040

12 × ∅271000140010801150

12 × ∅301300165013701440

12 × ∅301300165013601450

12 × ∅301520200016201700

Dimensions given in mm.Dimensions pre−sized but not given there are variable as they depend on an electric motor type and size. They may be given on request within contract. Connecting dimensions of the pump suction branch flange are intended for PN 10.Connecting dimensions of the discharge elbow flange are intended for PN − given in the Table „TECHNICAL AND DESIGN DATA“.L3 .......... using a suction pipe individually, for extension the pump total face−to−face dimension.H .......... minimal „on“ level necessary within the pump starting−up for its thorough flooding and reliable operation.C and F….. according to individual version.

9

Wet sUMp Version WitH BrAnCH teV

CONNECTING DIMENSIONS

10

DiMensions oF pUMps WitH DisCHArge BrAnCH teV

Pump type 150-CVFV 200-CVFV 250-CVFV 300-CVFV 350-CVFV 400-CVFV 500-CVFV 600-CVFV

A

Numb

er

of sta

ges 1

23

376553−

418622−

458691−

543808−

640945

1250

73510851435

8301230

−

8601313

−

B 340 350 420 450 500 650 650 710

C 450 450 500 670 670 754 754 870

DD1D3

DN 150DN 150DN 200

DN 200DN 200DN 200

DN 250DN 250DN 250

DN 300DN 300DN 300

DN 350DN 350DN 350

DN 400DN 400DN 400

DN 500DN 500DN 400

DN 600DN 600DN 500

∅ E∅ F

554440

635440

714520

790504

930504

1030605

1200605

1380775

G 160 180 200 220 230 250 230 280

Hh

290180

320210

340240

410280

480300

540340

610420

780540

L L2 + A + L3 + C

L2

9701470197024702970347039704470497054705970

697079708970997010970119701297013970149701597016970

9651465196524652965346539654465496554655965

696579658965996510965119651296513965149651596516965

9601460196024602960346039604460496054605960

696079608960996010960119601296013960149601596016960

9551455195524552955345539554455495554555955

6955795589559955

10955119551295513955149551595516955

9501450195024502950345039504450495054505950

6950795089509950

10950119501295013950149501595016950

9401440194024402940344039404440494054405940

6940794089409940

10940119401294013940149401594016940

9401440194024402940344039404440494054405940

6940794089409940

10940119401294013940149401594016940

9301430193024302930343039304430493054305930

6930793089309930

10930119301293013930149301593016930

L3

2505007501000

125015002000

−

2505007501000

12501500

−−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

250500750

1000

125015002000

−

∅ T1∅ U∅ V∅ U1∅ V1

10 × ∅18650900710740

10 × ∅237001000770810

10 × ∅238001150900960

10 × ∅239001130960

1040

10 × ∅271000140010801150

10 × ∅301300165013701440

10 × ∅301300165013601450

14 × ∅301520200016201700

Dimensions are given in mm.Dimensions pre−sized but not given there are variable as they depend on an electric motor type and size. They may be given on request within contract. Connecting dimensions of the discharge branch elbow flange are intended for PN − given in the Table „TECHNICAL AND DESIGN DATA“.L3 .......... using a suction pipe individually, for lenghtening the pump total face−to−face dimension.H .......... minimal „on“ level necessary within the pump starting−up for its thorough flooding and reliable operation.C and F….. according to individual version

www.sigma.cz

SIGMA GROUP a. s.Jana Sigmunda 79

783 49 Lutín, Česká republika+420 585 652 011, +420 585 652 060+420 585 652 051, +420 585 944 294

info@sigma.cz2014

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