Pump • Fire Fighting Units • Booster Set

SKM
MULTISTAGE

SKM Rev.11 09.2021

CENTRIFUGAL PUMPS

Handled Liquids
Clean or slightly contaminated low viscosity liquids without
solid & fibrous particles.

Technical Data
Discharge Flange DN 32.....DN 250 mm •In standard production, suction flange is placed on the right side
and close to the coupling while discharge flange is at the other
Capacity up to 1000 m³/h end and radially upwards (R 3/0). If other flange position is
Head up to 550 m required, it should be indicated in the order.

Speed up to 2900 rpm •All impellers are balanced dynamically or statically according
to ISO 1940 class 6.3.
Design Temperature 10°C up to +140 °C*
•Axial thrust is balanced by impeller balancing holes system.
Casing Pressure (Pmax) 30 bar (63 bar)*
•Direction of rotation is clockwise viewed from drive end.

(Pmax: Suction Pressure + Shut off Head) •Bearings of SKM type pumps are always grease lubricated.
(*) The Material of pumps differ according to the type of pumped
liquid, operating temperature and pressure. Contact for detailed
information.

Design Features Shaft Sealing

•Horizontal ring section, multistage, centrifugal pumps with •In standard production soft packing application is applied
closed impeller and diffuser. up to 110 °C. Between 110 °C and 140 °C soft packing may
also applied together with the stuffing box cooling.
•10 Models from DN 32 up to 250 discharge flange diameter.
•Pumps with mechanical seal can also be manufactured upon
•Suction nozzle flanges conform to EN 1092 - 2 / PN 16 and request.
discharge nozzle flanges conform to EN 1092 - 2 / PN 40 (PN 63)
(For steel or stainless steel casing pumps, flanges comform to
related pressure class ratings defined in EN 1092 - 1)

Pump Designation
SKM - K 100 / 6
Pump Type
Heavy Duty Design
Discharge Nozzle (DN-mm)
Number of Stages

087
088
1450 rpm
500

400 150/10

125 150/9
/
Field Chart

125 12 150/8 200/6 250/4

300 /11
100 125
100/15 /10 150/7
/ 125 200/5
100 14 /9
/
100 13 125
/12 150/6 250/3
100 /8
/11 200/4
200 80 100
/ /10 125/7 150/5
80 15
/
80 14 100/9
/ 125/6
160 80 13
100/8
/12 150/4 200/3 250/2
80 125/5
/11 100/7
65/ 80
11 /10
65/ 100/6
10 80/9 150/3
50/ 125/4
1 65/9
100 50/ 2 80/8
40/ 11 100/5
90 13 50/ 65/8
40/12 10 80/7 200/2
80 32/14 40/11 50/9 65/7 125/3
32/13 80/6 100/4
70 40/10 50/8
32/12 150/2
40/9 65/6
32/11 50/7 80/5
60
32/10 40/8
65/5

Head (m)
32/9 50/6 100/3
50 40/7
80/4 125/2
32/8
40/6 50/5 65/4
40 32/7

40/5 80/3
32/6 50/4
100/2
30
65/3
32/5 40/4

50/3
32/4
20 40/3 65/2 80/2

16
50/2

32/3 40/2

10
4 5 6 7 8 9 10 16 20 30 40 50 60 70 80 100 160 200 300 400 500 600 800 1000 1200

Heavy Duty Design Capacity (m³/h)

SKM
 Field Chart SKM
1450 rpm Narrow Impellers
500

400 125A/12
125A/11 200B/6
100A 125A/10
100A//15 125A/9
300 100A/14 200B/5
1
100A/ 3 125A/8 200A/6
1
250 100A/ 2
11 125A/7 200B/4
100A/ 200A/5
10
200 100A/
9 125A/6
100A/ 200A/4
8
160 125A/5 200B/3
100A/
7
100A/ 125A/4
6 200A/3
100A/
100 5 200B/2
90 125A/3
100A/ 200A/2
head (m)

80 4
70
60
100A/
3
50
125A/2

40
100A/
2

30

20

15
40 50 60 100 160 200 300 400 500 700
Capacity (m³/h)
2900 rpm
600

500 65A/10
65A/9
50/10 65A/8
400
40/12 50/9
32/13 40/11
50/8 65/7
300 32/12 40/10 80/6
32/11 40/9 50/7 65/6
32/10 40/8 80/5
50/6
32/9 65/5
40/7
200 32/8 50/5 80/4
32/7 40/6 65/4
160
32/6 40/5 50/4
80/3
32/5 40/4 65/3
50/3
Head (m)

100
90 32/4 40/3
80
80/2
70
65/2
32/3 50/2
60

50 40/2

40 32/2

30

20
5 6 7 8 9 10 16 20 30 40 50 60 100 160 200
Capacity (m³/h)
Heavy Duty Design

089
 Sectional Drawings SKM
SKM - 32 - 40 - 50 - 65 Series
034 260 073 030.2 070 044 423 005 210 006 *021.2 004 060 071 400 042 035 212

220 200 072 421 048 *405.1 422 074 016 211 230 090 420 050 *020 *021.1 075 *405.2 030.1 088

SKM - 80 - 100 - 125 - 150 - 200 - 250 Series

065 203 072 068 400 070 005 067 *020 006 210 004 071 042 030.1 069 260

392

391

034 220 088 030.2 044 016 420 015 211 *021.2 230 050 *021.1 090 421 060 202 035 212

090
 Part List SKM
004 Suction Casing 072 Spacer Sleeve (discharge side)
005 Discharge Casing 073 Spacer Sleeve
006 Stage Casing 074 Mechanical Seal Sleeve (discharge)
015 Diffuser 075 Mechanical Seal Sleeve (suction)
016 Final Stage Diffuser 088 Thrower
*020 Wear Ring (stage casing) 090 Casing Tiebolt
*021.1 Wear Ring (suction casing) 200 Ball Bearing
*021.2 Wear Ring (stage casing) 202 Cylindrical Roller Bearing
030.1 Bearing Housing (suction casing) 203 Angular Contact Ball Bearing
030.2 Bearing Housing (discharge casing) 210 Impeller Key
034 Bearing End Cover 211 Stage Key
035 Bearing Cover (coupling side) 212 Coupling Key
042 Stuffing Box Gland 220 Retaining Ring
044 Lantern Ring 230 Drain Plug
048 Mechanical Seal Cover 260 Grease Nipple
050 Impeller 391 Shaft Nut
060 Shaft 392 Lock Washer
065 Shaft Nut 400 Stuffing Box Packing
067 Interstage Sleeve *405.1 Mechanical Seal (Discharge)
068 Spacer Sleeve (discharge side) *405.2 Mechanical Seal (Suction)
069 Spacer Sleeve (suction side) 420 O-Ring (stage casing)
070 Shaft Protecting Sleeve (discharge side) 421 O-Ring (shaft protecting sleeve)
071 Shaft Protecting Sleeve (suction side) 422 O-Ring (mechanical seal cover)
423 O-Ring (discharge casing)

(*) Optional

Flange Positions
D S D S S D

S
S
D D S D D S
S
D
S D Clockwise rotation
viewed from driver
D D D D D D D D D (Suction flange is R 3/0
S S S S S S S S S on the motor side)
Discharge Flange Position (D)
R3/0 R3/3 R3/9 R0/0 R0/3 R0/9 R9/0 R9/9 R9/3 Suction Flange Position (S)
D SD S S D
Direction of Rotation (R/L)
S
S
D D S D D S
S
D
S D Counter clockwise
rotation viewed Direction of rotation viewed from driver end
from driver
(Discharge flange is R : Right
D D D D D D D D D
on the motorr side) L : Left
S S S S S S S S S

L3/0 L3/3 L3/9 L0/0 L0/3 L0/9 L9/0 L9/9 L9/3

091
 Technical Data SKM
For SKM - 32 - 40 - 50 - 65 series
L
B C A

l1

e
d

h
q3 Øz
q2
U1 U2 q1
m n
EA
D E

For SKM - 80 - 100 - 125 - 150 - 200 - 250 series

L
ABb
B C A

l1 e

ABe
d

q2 q2
øz
U1 U2
u n1
m q1
EA
D E t n

“C” according to the number of stages (mm)

Pump
Type 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
32 71 114 157 200 243 286 329 372 415 458 501 544 587 630
40 78 133 188 243 298 353 408 463 518 573 628 683 738
50 90 152 214 276 338 400 462 524 586 648 710 772
65 107 178 249 320 391 462 533 604 675 746 817
80 112 195 278 361 444 527 610 693 776 859 942 1025 1108 1191 1274
100 133 233 333 433 533 633 733 833 933 1033 1133 1233 1333 1433 1533
125 165 280 395 510 625 740 855 970 1085 1200 1315 1430
150 218 363 508 653 798 943 1088 1233 1378 1523
200 267 437 607 777 947 1117
250 520 722 924
Pump Dimensions (mm)
Type ABe ABb A B EA D L E e h m n n1 q1 q2 øz u1 u2
32 40 32 241 165 C+170 C+205 C+406 145 152 132 60 192 55 136 85 15 98,5 106,5
40 50 40 238 165 C+173 C+219 C+403 134 175 160 60 232 55 175 86,5 15 109,5 109,5
50 65 50 254 175 C+183 C+230 C+429 145 190 160 60 256 60 200 91,5 15 117 113
65 80 65 271 195 C+190 C+234 C+466 150 215 180 60 294 60 240 95 15 124 120
80 100 80 321 250 C+84 C+124 C+571 259 265 210 85 410 90 340 42 15 62 62
100 125 100 389 285 C+104 C+140 C+674 319 300 250 90 450 90 370 48 15 70 70
125 150 125 412 300 C+110 C+124 C+712 332 375 300 105 560 105 450 55 20 83 83
150 200 150 486 360 C+130 C+208 C+846 381 425 350 130 655 110 550 65 26 103 105
200 250 200 515 385 C+138 C+210 C+900 410 500 400 130 675 120 550 65 27 105 105
250 300 250 708 444 C+148 C+260 C+1152 577 627 472 155 775 150 625 74 32 130 129
Note : All rights reserved.
Heavy Duty Design
092
Technical Data SKM
Standard Application Maximum number of stages according to shaft material

Pump Weight 1.4462 / 1.4021 1.4301 / 1.4404

Shaft End Pump
Type (kg) 1450 rpm 2900 rpm 1450 rpm 2900 rpm
d1 l1 v u G1 g Type (1750 rpm) (3500 rpm)
(1750 rpm) (3500 rpm)
32 24 60 27 8 44 6 32 14(14) 13(9) 14(14) 13(8)
40 24 60 27 8 58 9,5 40 13(13) 12(8) 13(13) 7(3)
50 28 65 31 8 89 13 50 12(12) 10(6) 12(10) 7(2)
65 32 65 35 10 92 20 65 11(11) 7(4) 11(8) 5(2)
80 38 80 41 10 128 26 80 11(11) 4(2) 11(8) 3(N/A)
100 42 110 45 12 177 42 100 9(7) - 6(4) -
125 48 110 51,5 14 330 75 125 7(5) - 4(2) -
150 55 110 59 16 580 120 150 5(3) - 3(N/A) -
200 70 140 74,5 20 920 200 200 3(2) - 3(N/A) -
Pump weight = G1 + (s x g) (s : number of stage)

Heavy Duty Design Maximum number of stages according to shaft material

Pump Weight 1.4462 / 1.4021 1.4301 / 1.4404
Shaft End Pump
Type (kg)
d1 l1 v u G1 g Type 1450 rpm 2900 rpm 1450 rpm 2900 rpm
(1750) rpm) (3500) rpm
(1750) rpm (3500) rpm
65A 38 88 41 10 105 20 65A - 10(7) - N/A
80 42 80 45 12 146 26 80 15(15) 6(3) 15(N/A) N/A
100 48 143 51,5 14 205 42 100 15(11) - N/A(N/A) -
125 55 110 59 16 370 75 125 12(8) - 8(N/A) -
150 65 110 69 18 630 120 150 10(6) - 7(N/A) -
200 70 140 74,5 20 945 200 200 6(4) - 5(N/A) -
250 100 245 106 28 1250 320 250 4(3) - 4(N/A) -
Pump weight = G1 + (s x g) (s : number of stage)

Bearing Type
Standard Application Heavy Duty Design
1450 rpm (1750 rpm) 1450 rpm (1750 rpm)
Pump Number Bearing Type Pump Number Bearing Type
Type of Stages Suciton Discharge Type of Stages Suction Discharge
32 2....14(14) 6305 6305 80 11(11)....15(15) NU 309 2 x 7309
40 2....13(13) 6305 6305 100 9(9).....15(11) NU 310 2 x 7310
50 2....12(12) 6306 6306 125 7(7).....12(8) NU 312 2 x 7312
65 2....11(11) 6307 6307 150 5(5).....10(6) NU 314 2 x 7314
80 2....11(11) NU 308 3308 200 3(3).....6(4) NU 316 2 x 7316
100 2.....9(7) NU 309 3309 250 2(2).....4(3) NU 321 2 x 7321
125 2.....7(5) NU 310 3310
150 2.....5(3) NU 312 3312
200 2.....3(2) NU 315 2x7315

2900 rpm (3500 rpm) 2900 rpm (3500 rpm)

Pump Number Bearing Type Number Bearing Type Pump Number Bearing Type
Type of Stages Suciton Discharge of Stages Suction Discharge Type of Stages Suction Discharge
32 2....9(6) 6305 6305 10(7)...13(9) NU 305 6405 65A 8(N/A)....10(N/A) NU 308 2 x 7308
40 2....6(4) 6305 6305 7(5)....12(8) NU 305 6405 80 5(N/A).....6(N/A) NU 309 2 x 7309
50 2....5(3) 6306 6306 6(4)....10(6) NU 306 6406
65 2....4(2) 6307 6307 5(3).....7(4) NU 307 6407
80 - - - 2(2).....4(2) NU 308 3308

093
 Technical Data SKM

1.4021+QT
2.0975.01
2.1050.01

2.1096.01
0.7040
0.6025

0.7043

1.4008
1.4408

1.4404
1.4409

1.4460
1.4500

1.0503
1.4308

1.4469
1.4309

1.4462
PART LIST

1.0619

1.4301
1.4021
1.4517

1.4317
Suction Casing
Discharge Casing
Stage Casing
Diffuser
Impeller
Shaft
Bearing Housing
Wear Ring
Spacer Sleeve
Shaft Protecting Sleeve
Interstage Sleeve
Mechanical Seal (*) EN 12756
(*) Optional :Depending on customer requirement or request different types and brands of mechanical seals are applicable. Standard manufacturing
Optional
Material Equivalents
Description DIN / EN AISI / SAE / ASTM
Cast Iron 0.6025 EN-GJL-250 (GG25) A48 Class 40B
Nodular Cast Iron 0.7040 EN-GJS-400-15 (GGG40) A536 60-40-18
Nodular Cast Iron 0.7043 EN-GJS-400-18-LT (GGG40.3) A536 60-40-18
Cast Steel 1.0619 GP240GHGS-C25 A216 WCB
Chrome Nickel Cast Steel 1.4308 GX5CrNi19-10 A351 CF8
Chrome Nickel Cast Steel (low carbon) 1.4309 GX2CrNi19-11 A351 CF3
Chrome Nickel Molybdenum Cast Steel 1.4408 GX5CrNiMo19-11-2 A351 CF8M
Chrome Nickel Molybdenum Cast Steel (low carbon) 1.4409 GX2CrNiMo19-11-2 A351 CF3M
Austenitic Cast Steel 1.4500 GX7NiCrMoCuNb25-20 A351 CN7M
Austenitic - Ferritic Cast Steel (duplex) 1.4517 GX2CrNiMoCuN25-6-3-3 A890 CD4MCuN
Austenitic - Ferritic Cast Steel (super duplex) 1.4469 GX2CrNiMoN26-7-4 A890 CE3MN
Martenzitic Stainless Cast Steel 1.4317 GX4CrNi13-4 A352 CA6NM
Martenzitic Stainless Cast Steel 1.4008 GX7CrNiMo12-1 A217 CA15
Cast Bronze (tin alloy) 2.1050.01 G-CuSn10 B427 C90700
Cast Bronze (nickel alloy) 2.0975.01 G-CuAl10Ni B148 C95500
Cast Bronze (leaded) 2.1096.01 G-CuSn5ZnPb B584 C83600
Carbon Steel 1.0503 C45 AISI 1045
Chrome Steel 1.4021 X20Cr13 A276 Type 420
Chrome Steel (heat treated) 1.4021 X20Cr13 A276 Type 420+QT
Chrome Nickel Steel 1.4301 X5CrNi18-10 A276 Type 304
Chrome Nickel Steel (low carbon) 1.4404 X2CrNiMo17-12-2 A276 Type 316L
Duplex (austenitic-ferritic) Steel 1.4460 X3CrNiMoN27-5-2 AISI 329
Duplex (austenitic-ferritic) Steel 1.4462 X2CrNiMoN22-5-3 UNS S32205

Flange Dimensions
EN 1092 - 2

Suction & Discharge (PN 16) Suction & Discharge (PN 40)
DNe/DNb
Df k s n Df k s n
s
32 140 100 19 4 140 100 19 4
40 150 110 19 4 150 110 19 4
50 165 125 19 4 165 125 19 4
65 185 145 19 4 185 145 19 8
DNe/DNb

80 200 160 19 8 200 160 19 8

Df
k

100 220 180 19 8 235 190 23 8

125 250 210 19 8 270 220 28 8
150 285 240 23 8 300 250 28 8
200 340 295 23 12 375 320 31 12
250 405 355 28 12 450 385 34 12
300 460 410 28 12 515 450 34 16
“ n “ number of holes

094