Type OW

Qmax=720m3/h – Hmax=700m 

APPLICATION

The OW-AM and OW-B type pumps are designed for deep mine dewatering. The parameters cover the range required in this application: capacities of hundreds cubic meters per hour and heads up to 800 meters. The robust design of OW-AM and OW-B pumps is adequate for adverse operating conditions typical for mine dewatering. The pumps are designed to stand increased external loads and the presence of mechanical and chemical contaminations in the mine water.

For the sake of those design features the OW-AM and OW-B pumps, beside the basic application in deep mine dewatering are also applicable in other industries, where there is a need for pumping contaminated fluids, such as:

steel industry
cement and lime plants
open cast mines.

DESIGN

OW-AM and OW- are horizontal, stationary, multistage, ring-section pumps.The delivery flange is directed vertically upward and the suction flange is directed horizontally, left or right according to the needs. Closed impellers and blade diffusers are applied. The axial thrust is absorber by a balance disk. Two alternative kinds of bearings can be applied: oil lubricated slide bearings or grease lubricated roller bearings. The shat seal can be sealed by a gland or mechanical seal.

MATERIALS OF CONSTRUCTION

The materials of construction for the OW-AM and OW-B pumps are selected accordingly to the handled fluid. There are three standard material versions:

basic – for water containing no contaminations
wear-resistant – for water containing solids
salt-resistant – for chemically contaminated water with solids presence.

Special material versions can be selected for handling non-typical fluids.




No.

Part name

No.

Part name

No.

Part name

1

Bearing cap

14

Distant

27

Seal ring

2

Oil chamber cover

15

Balance disc

28

Sealing sleeve

3

Bearing cap

16

Relieving system body

29

Distant sleeve

4

Shaft nut

17

Bearing housing

30

Tie bolt

5

Lantern ring

18

Stuffing box guard

31

Shaft sleeve

6

Suction casing

19

Bearing bush

32

Discharge casing sleeve

7

Suction casing plate

20

Shaft

33

Thrust ring

8

Centrifugal guide

21

Oil cooling system

34

Sliding ring

9

Supply guide

22

Deflector

35

Discharge gland bush

10

Impeller

23

Gland

36

Shaft nut

11

Stage casing

24

Gland packing

37

Bearing cap

12

Discharge casing

25

Shaft protecting sleeve

38

Shaft shift indicator

13

Discharge casing plate

26

1st stage seal ring


Dimensions [mm]

Pump type

OW-100B

OW-150AM

OW-200AM

OW-250B

OW-250F

OW-300AM

L

Number
of stages
3 1341 1424 1913 2065 2110 2151
4 1426 1513 2051 2220 2265 2337
5 1511 1602 2189 2375 2420 2523
6 1596 1691 2327 2530 2575 2709
7 1681 1780 2465 2685 2730 2895/3108*
8 1766 1869 2603 2840 2885 3081/3294*
9 1851 1958 2741 2995 3040 3480*
10 1936 2047 2879 3150 3195 3666*
11 2136 3017 3305
a Number
of stages
3 311 375 507 593 593 659
4 396 464 645 748 748 845
5 481 553 783 903 903 1031
6 568 642 921 1058 1058 1217
7 651 731 1059 1213 1213 1403
8 736 820 1197 1368 1368 1589
9 821 909 1335 1523 1523 1775
10 906 998 1473 1678 1678 1961
11 1087 1611 1833


Dimension marked [*] apply to two-sided drive.

Pump type

OW-100B

OW-150AM

OW-200AM

OW-250B

OW-250F

OW-300AM

Dimensions
[mm]
W 619 653 1060 1158 1158 1273
k 350 380 600 650 650 750
H 605 605 1000 1170 1170 1200
h 265 265 450 530 530 560
Ds 150 200 250 300 300 350
Dt 100 150 200 250 250 300


 


Pump type

Number of stages

Capacity
Q [m3/h]

Head
H [m]

Rotation speed
n [rpm]

Shaft power
P [kW]

Weight
m [kg]

OW-100B 3 100 198 2950 82,5 524
4 264 110 577
5 330 137,5 630
6 396 165 683
7 462 192,5 736
8 528 220 789
9 594 247,5 842
10 660 275 895
OW-150AM 3 160 204 2950 126 550
4 272 168 605
5 340 210 660
6 408 252 715
7 476 294 770
8 544 336 825
9 612 378 880
10 680 420 935
11 748 462 990
OW-200AM 3 300 180 1450 210 2124
4 240 280 2314
5 300 350 2504
6 360 420 2694
7 420 490 2884
8 480 560 3074
9 540 630 3264
10 600 700 3454
11 660 770 3644
OW-250B 3 500 210 1450 381 2985
4 280 508 3271
5 350 635 3556
6 420 762 3842
7 490 889 4126
8 560 1016 4412
9 630 1143 4697
10 700 1270 4982
11 770 1397 5267
OW-250F 3 600 210 1485 440 3075
4 280 587 3373
5 350 733 3691
6 420 880 4000
7 490 1027 4308
8 560 1174 4616
9 630 1320 4924
10 700 1467 5232
OW-300AM 3 720 210 1450 528 3005
4 280 704 3345
5 350 880 3685
6 420 1056 4025
7 490 1232 4365/4382*
8 560 1408 4705/4722*
9 630 1584 5062*
10 700 1760 5402*

The parameters are specified for clean water of density ρ=1000 kg/m3 and temperature T=15°C.
Dimensions marked (*) petain to design with dual drive.