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Multistage Pumps

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Features

MH pumps are multistage centrifugal pumps for high pressure with more stages. The coupling to the drive machine is generally direct and it happens through elastic joint on a common plate.

Applications

These pumps are used for:
Hydraulic industrial supply and water distribution systems.
Irrigation and land reclamation plants.
Pressure rising in network.
Circulation of water in boilers, for condensate transportation and fire-fighting equipment.

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Model List

Sr. #
Model
HP
Size
Stage
Type
Head FT
Lit / Min
1
2
1
2
1
OKP1-S1-H79/L152
1
1.25" x 1"
1
Mechanical Seal
79
26
40
152
2
OKP1-S2-H89/L185
1
1.25" x 1"
2
Mechanical Seal
89
30
47
185
3
OKP2-S1-H72/L302
2
2" x 2"
1
SM
72
49
225
302
4
OKP2-S3-H115/L203
2
1.5" x 1.25"
3
ME-S3
115
32
63
203
5
OKP2-S3-H115/L203
2
1.5" x 1.25"
3
ME-S3 SEAL
115
32
63
203
6
OKP3-S2-H89/L302
3
2" x 1.5"
2
ME-M2
89
32
142
302
7
OKP3-S2-H89/L302
3
2" x 1.5"
2
ME-M2 SEAL
89
32
142
302
8
OKP3-S4-H207/L210
3
1.5" x 1.5"
4
ME-S4
207
39
60
210
9
OKP3-S4-H213/L217
3
1.5" x 1.5"
4
ME-S4 SEAL
213
32
58
217
10
OKP3-S1-H82/L303
3
2" x 2"
1
SM
82
26
112
303
11
OKP3-S1-H46/L962
3
3" x 3"
1
SM
46
13
553
962
12
OKP3-S1-H79/L365
3
2" x 1.5"
1
PP1
79
23
241
365
13
OKP3-S4-H207/L210
3
2" x 1.5"
4
ME-S4
207
39
60
210
14
OKP3-S4-H213/L218
3
2" x 1.5"
4
ME-S4 SEAL
213
32
59
218
15
OKP3-S2-H82/L308
3
2" x 1.5"
2
ME-S4 SEAL
82
26
149
308
16
OKP5-S1-H66/L502
5
2" x 2"
1
SM
66
23
312
502
17
OKP5-S3-H129/L220
5
2" x 2"
3
Mechanical Seal
129
23
25
220
18
OKP5-S4-H172/L220
5
2" x 2"
4
Mechanical Seal
172
30
28
220
19
OKP8-S5-H215/L220
7.5
2" x 2"
5
Mechanical Seal
215
35
30
220
20
OKP5-S1-H56/L970
5
3" x 3"
1
SM
56
32
718
970
21
OKP5-S6-H292/L200
15
3" x 3"
6
ME-S6
292
30
43
200
22
OKP5-S6-H296/L202
15
3" x 3"
6
ME-S6 SEAL
296
32
45
202
23
OKP5-S8-H344/L186
15
2.5" x 2"
8
ME-S8
344
46
76
186
24
OKP5-S2-H92/L345
5
2.5" x 2"
2
ME-M2
92
23
160
345
25
OKP5-S2-H82/L342
5
2.5" x 2"
2
ME-M2 SEAL
82
23
163
342
26
OKP5-S3-H161/L229
5
2.5" x 2"
3
ME-M3
161
32
75
229
27
OKP5-S3-H164/L223
5
2.5" x 2"
3
ME-M3 SEAL
164
32
79
223
28
OKP5-S1-H164/L717
5
2.5" x 2"
1
PP-1
164
26
573
717
29
OKP5-S8-H361/L203
5
2.5" x 1.5"
8
VME-S8
361
32
78
203
30
OKP8-S3-H167/L378
7.5
2.5" x 2"
3
ME-M3
167
32
123
378
31
OKP8-S3-H164/L372
7.5
2.5" x 2"
3
ME-M3 SEAL
164
32
125
372
32
OKP8-S4-H184/L372
7.5
2.5" x 2"
4
ME-M4
184
30
103
372
33
OKP8-S4-H180/L362
7.5
2.5" x 2"
4
ME-M4 SEAL
108
230
101
362
34
OKP8-S1-H102/L714
7.5
2.5" x 2"
1
PP-1
102
30
294
714
35
OKP8-S2-H105/L749
7.5
2.5" x 2"
2
PP-2
82
26
149
308
36
OKP8-S8-H394/L203
7.5
2.5" x 2"
8
VME-S8
394
49
83
203
37
OKP8-S8-H377/L228
7.5
1.5" x 1.5"
8
ME-S8
377
32
78
228
38
OKP10-S10-H450/L200
10
1.5" x 1.5"
10
Mechanical Seal
450
78
25
200
39
OKP10-S1-H112/L903
10
2.5" x 2"
1
KSM-1
112
92
409
903
40
OKP10-S2-H177/L623
10
2" x 2"
2
KSM-2
177
59
158
623
41
OKP10-S4-H184/L415
10
2.5" x 2"
4
ME-M4
184
30
136
415
42
OKP10-S4-H190/L413
10
2.5" x 2"
4
ME-M4 SEAL
190
32
133
413
43
OKP10-S5-H305/L410
10
2.5" x 2"
5
ME-M5
305
26
77
410
44
OKP10-S5-H295/L402
10
2.5" x 2"
5
ME-M5 SEAL
295
32
83
402
45
OKP10-S6-H315/L421
10
2.5" x 2"
6
ME-M6
315
26
80
421
46
OKP10-S6-H321/L412
10
2.5" x 2"
6
ME-M6 SEAL
321
32
74
412
47
OKP10-S5-H312/L403
10
2.5" x 2"
5
VME-M5
312
32
79
403
48
OKP15-S1-H138/L1002
15
2.5" x 2"
1
KSM-1J
138
128
628
1002
49
OKP15-S3-H256/L653
15
2.5" x 2"
3
KSM-3
256
85
174
653

Construction

Horizontal centrifugal pumps, with more stages, composed of suction and delivery bodies and stages divided in perpendicular section to the rotation axe, radial impellers at double bending. O-rings assure the seal between the stages and its lock-out is assured through outside union tie-bolts. The supporting legs, made out from casting, are placed under the delivery door and under the first stage up to mh65-100 so to allow any direction of the suction door, while in bigger pumps; legs are under the suction door. For these latter, rotation is on request only when placing order.

Support

The axial and radial drive from rotor happens through one ball radial bearing and one roller bearing, grease lubricated0, placed in the flanged supports at the end of the pump. On request it is possible to have oil lubrication.

Balancing

The axial thrust is balanced through the hydraulic balancing of each impeller: the remaining thrust is absorbed by the ball bearing

SEAL ON SHAFT

Through packing gland not cooled for temperature up to 105° C and through packing gland cooled for temperature exceeding 105° C and up to 140° C. through mechanical seal not cooled up to 140° C. Besides, suitable executions for different working conditions. In the sealing area, the shaft has a replaceable protection bush.

Door position

Suction Door: Standard right horizontal seen from the suction side. Delivery Door: Vertical towards the top. On request the suction door may be supplied in vertical position towards the top or left vertical.

Working

Generally through electric motor, normalized though elastic joint. It is possible the working with motor at internal combustion or with turbine. Driving on the suction side or on request on the delivery side