SDS 01 04-10 EN

SDS Double Suction Split Case

Centrifugal Pumps

9905EN ISO

ATEX

Technical Data

Handled Liquids

Discharge Nozzle RangeCapacitiesHeadsSpeedOperating TemperatureCasing Pressure (Pmax)( Pmax: Suction Pressure + Shut off Head )

SDS type pumps are suitable for clean or slightly contaminated liquids with low viscosity.

DN 65 up to DN 400 mmup to 3500 m3/hup to 180 mup to 2900 rpm20 °C up to 80 °C*16 bar (25 bar)*

• Water supply

• Irrigation

• Drainage

• Water circulation

• Fire fighting

• Industrial applications

• Power stations

• Water treatment plants

• Suction and discharge flanges are on the same axis atthe bottom casing. Split case design permits easy disassemblyof the rotor group for maintenance or repair without distortingpump alignment and suction and discharge piping.

• Flanges are conforming to ISO 7005-2 / PN 16 or PN 25.

• Impeller is of double suction. This feature increases pumpsuction performance in addition it provides the balance ofhydraulic axial forces.

• All impellers are balanced statically and dynamicallyaccording to ISO 1940 class 6.3.

Pump Designation

Pump typeDischarge nozzle (DN)Nominal impeller diameter (mm)

SDS 200- 500

(*) The material of pumps differ according to the type of pumpedliquid , operating temperature and pressure. Contact our companyfor detailed information.

Design Features

• Pump shaft is supported by grease-lubricated rollingbearings on both sides.

• Depending on customer requirement ‘‘Life-time grease-lubricated’’ rolling bearings are available.

• Different soft packing and mechanical seal types are available.

• In standard construction the direction of rotation of pump isclockwise when it is looked from the motor side. In this case,suction flange is at right and discharge flange is at left. Uponrequest the direction of rotation can be reversed, and whenthis is done the position of the suction and discharge flangesare also reversed.

Bearings

Shaft Seal

Rotation

Applications

General Information SDS

Performance Range SDS

Performance Range SDS

SDSSectional Drawing

( * ) Alternative Application

( ** ) Optional Application

( *** ) Double volute desing is applied to:

SDS 200-500 , 250-600 , 300-500 300-700 , 350-500 , 350-700

003 Stuffing box013 Volute casing (top half)014 Volute casing (bottom half)020 Wear ring030 Bearing bracket034 Bearing cover (inboard)035 Bearing cover (outboard)035 Bearing cover (coupling)042 Stuffing box gland044 Lantern ring046 Stuffing box ring**048 Mechanical seal cover*050 Impeller060 Pump shaft067 Spacer sleeve070 Shaft protecting sleeve071 Shaft protecting sleeve088 Thrower200 Ball bearing210 Impeller key211 Coupling key212 Spacer key230 Drain plug231.1 Air plug231.2 Air plug260 Grease Nipple390 Pin391 Shaft nut & Lock washer400 Stuffing box packing405 Mechanical seal*420 O-Ring421 O-Ring422 O-Ring*500 Flushing pipe

Part List

*** Double Volute Application

* Mechanical Seal Application

500

231.2

030

390

003

050

400

200

020

014

070

391

042

421

088

013

211

071

420

044

060

210 231.1

035

034

230

046

067212

260*422

*405

*048

036

Technical Data SDS

Material Equivalents

Material Options

GJL-250 (GG 25)GJS-400-15 (GGG 40)

G-X5 Cr Ni 19-10

G-Cu Al 10 NiX20 Cr 13

GP240GH (GS-C 25)

G-X5 Cr Ni Mo 19-11-2G-X2 Cr Ni Mo 19-11-2

X5 Cr Ni 18-10X2 Cr Ni 19-11X5 Cr Ni Mo 17-12-2

1.40211.43011.43061.4401

Description DIN 17007 EN-DIN ASTM

0.60250.70401.06191.43081.44081.4409

2.0975.01

A 48 Class 40-BA 536 Gr. 60-40-18A 216 Gr. WCBA 351/743/744 Gr. CF8A 351/743/744 Gr. CF8MA 351/743/744 CF3M

B 584 C 95800A 276 Type 420A 276 Type 304A 276 Type 304L

X2 Cr Ni Mo 17-12-21.4404 A 276 Type 316 LA 276 Type 316

X2 Cr Ni Mo N 22-5-31.4462 A 276 (32205)

G-X2 Cr Ni Mo Cu N 25-6-3-31.4517

G-Cu Sn 102.1050.01 B 584 C 90700G-X2 Cr Ni Mo N 26-7-41.4469

A 890 Gr. 1B (CD4MCuN)A 890 Gr. 5A (CE3MN)

Flange Dimensions

(*) Optional: Depending on customer requirement or request different types and brands of mechanical seals are applicable.

Parts List

EN 12756 / DIN 24960

0.60

25

0.70

40

1.06

19

1.43

08

1.44

08

1.40

21

1.43

01

1.44

01

1.44

62

1.43

06

1.44

04

2.10

50.0

1

1.44

09

1.45

17

1.44

69

2.09

75.0

1

Suction & Discharge(PN 16)

Df k s n bf

65

80

100

125

150

200

250

300

185

200

340

405

460

145

160

295

355

410

19

28

28

19

23

4

8

12

20

32

32

30

22

DNe/DNb

220 180 19 8 24

250 210 19 8 26

285 240 23 8 26

350 520 470 28 16 36

400 580 525 31 16 38

500 715 650 34 20 42

12

12

Df k s n bf

185

200

360

425

485

145

160

310

370

430

19

31

31

19

28

8

8

16

24

36

40

34

26

235 190 23 8 28

270 220 28 8 30

300 250 28 8 34

555 490 34 16 44

620 550 37 16 48

730 660 37 20 52

12

12

Df k

DN

e/D

Nb

bf s

“n“ number of holes

Suction & Discharge(PN 25)

Duplex (austenitic-ferritic) steelChrome nickel molybdenum steel (low carbon)

Cast ironNodular cast ironCast steelChrome nickel cast steelChrome nickel molybdenum cast steelChrome nickel molybdenum cast steel (low carbon)

Cast bronzeChrome steelChrome nickel steelChrome nickel steel (low carbon)Chrome nickel molybdenum steel

Austenitic-ferritic cast steel (duplex)

Cast bronzeAustenitic-ferritic cast steel (super duplex)

Volute casingImpellerShaftBearing housingWear ring (Casing)Shaft protecting sleeveMechanical seal (*)

Optional

Standard manufacturing

Technical Data SDS

l3l1l2 a1

n2n1

s

a2

m1m2

l

550

750

710

400

640

435

280320

20340

20300230460400200140300

200200

280

540460250

660540

200400450

470

300

235260

16 16 200 125 555 420 97555280

3 0 0120

16 16 22380320640540200400400470

200 150 555 420 97555 120

170355370420

16

16

16

16

150

125

100

80

450

400

350

310

800

710

42

35

65-250

100-315

125-450

125-350125-315

100-400

100-25080-315

80-250

80-200100 65

90

80

16

25

16

25

150-450

150-315

300-500

300-400300-315250-600

250-450250-350

200-500

200-400

200-315

350-500

350-400350-350300-700

365310350

310360 480400

22380320540460370420

65

6 5

16 16 250 200 645 500 1145130 360 22420360

720620300560500550

315

380

450500 640540240500

65 700620300630500600 400 224201145500645130 360350

300 250 720620300600500600

41522420360

3901145500645130

8 0 430 26485415550650720 540 1260170

16 16

80

960800380800600800

500 266001385615

770140500500

350800720350670550700 450 5201385615 420

25 25 880720350710800750 470 265201540675865180 420400 300

75400

100

16 16 75800

720350

710700

42526520

1385615770140420400

30080 710

450

170 1340585755

170 1340585755

280320 2030023046040014030016 16 400 310 71035 80

350-700 25 25 880720450850750850 525 266001540675865180 500500 350 100

a2a1 sm2m1n2n1h3h2h1Pump TypeDimensions (mm)

PNe PNb DNe DNb l1 l2 l3ød lWeight

(kg)165165175

197220230

290330

380

410

395430

570

575700

682

7801190700

11251500

16501100

1400

1435

2000

740

700

150-600 25 25 150 550 560500 300 445 800

400-800 16 16 1120950450880900900 565 2674018458101035220 630600 400 105 3400

900

65250 645 500 1145130 640540 22420360

360 300

500

450500

Note: Dimensions may differ in cast steel and cast bronze pumps. Contact our company for details.

Right reserved to change without notice.No responsibility is accepted because of printing errors.