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CNS Series Multistage Segmental

Designed for injection of water into the oil-bearing formations to boost the oil yield (to maintain the seam pressure after the natural field pressure is reduced and insufficient to bring the oil to the surface) on the oil fields.

Electrically driven horizontal, between-bearings, multistage segmental centrifugal pumps, with automatic balancing of the rotor axial thrust by balance disc and balance disc seat.

Pumps CNS … – 2 (2nd upgrading) models: CNS 45, CNS 63, CNS 90, CNS 120, CNS 180, CNS 240, CNS 315

The pump rotor is carried by the oil-bath or pressure oil lubricated plain bearings. Shaft sealing: soft packed glands (C) or mechanical seals (T). The suction nozzle horizontally sideward, the discharge nozzle vertically to the top. As regards the mounting dimensions of their nozzles and base plate, these pumps are interchangeable with the pumps for a duty of 180 m3/h in the same service, for the replacement of which the former have been designed.

Pumps CNSz … – 2 (2nd upgrading) models:

In order to enhance a cumulative reliability and entire life of the pumps if frequently started and stopped, their design features a balance disc-from-seat separation device. It is intended for ensuring the guaranteed axial gap between the balance disc and balance disc seat.

Pumps CNSp… – models:

With back-to-back impeller arrangement that makes an axial thrust balancing device unnecessary in the pump design and significantly improves the reliability of pump operation. The residual axial thrust is absorbed by a thrust bearing.

Pumps CNS… – 3 (3rd upgrading) models: CNS 45, CNS 63, CNS 90, CNS 120, CNS 180, CNS 240, CNS 315

The pump rotor is carried by the medium-lubricated plain bearings. Shaft sealing: soft packed glands (C) or mechanical seals (T). The suction nozzle horizontally sideward, the discharge nozzle vertically to the top.

Pumps CNS … – 2 (2nd upgrading) models: CNS 300, CNS 360, CNS 500, CNS 630, CNS 720

The pump rotor is carried by the oil-bath or pressure oil lubricated plain bearings. Shaft sealing: soft packed glands (C) or mechanical seals (T). The suction and discharge nozzles vertically to the top. At the Customer’s request, pumps to deliver 500, 630 and 720 m3/h can be equipped with a balance disc-from-seat separation device (supplied in the CNSz configuration).

Ordinary (general service) version

Handled media: clean water and oil-field produced waters free from hydrogen sulfide.

Corrosion-resistant material construction

Handled media in case of corrosion-resisting and wear- and corrosion-resisting constructions: aggressive sewage and formation oil-field produced waters including those that contain hydrogen sulfide.

Duplex steel construction

Handled media in case of duplex steel construction: aggressive sewage and formation and cenomanian oil-field produced waters including those that contain hydrogen sulfide (H2S up to 400mg/l).

The Manufacturer shall select appropriate material construction according to handled medium characteristics specified by the Purchaser.

Unless otherwise specified, applicable to all the constructions :

* – only the CNSp models; ** – to all the pump models except CNSp; *** – only the TsNS …-2 (2nd upgrading) models

Nos	Pump make	Capacity, m3/h	Head, m	Rotational speed (synchr.), rpm	Motor nominal power, kW
1	CNS 10-200	10	200	3000	22
2	CNS 10-480	10	480	3000	55
3	CNS 10-700	10	700	3000	90
4	CNS 30-800	30	800	3000	315
5	CNS 30-1050	30	1050	3000	315
6	CNS 30-1422	30	1250	3000	315
7	CNS 40-800	40	800	3000	315
8	CNS 40-1050	40	1050	3000	315
9	CNS 40-1422	40	1250	3000	315
10	CNS 45-700	45	700	3000	315
11	CNS 45-900	45	900	3000	315
12	CNS 45-1050	45	1050	3000	500
13	CNS 45-1150	45	1150	3000	500
14	CNS 45-1275	45	1275	3000	500
15	CNS 45-1422	45	1422	3000	630
16	CNS 45-1525	45	1525	3000	630
17	CNS 45-1650	45	1650	3000	630
18	CNS 45-1775	45	1775	3000	800
19	CNS 45-1900	45	1900	3000	800
20	CNS 45-2100*	45	2100	3000	800
21	CNS 63-700**	63	700	3000	500
22	CNS 63-900	63	900	3000	500
23	CNS 63-1050	63	1050	3000	500
24	CNS 63-1150	63	1150	3000	500
25	CNS 63-1275	63	1275	3000	630
26	CNS 63-1422	63	1422	3000	630
27	CNS 63-1525	63	1525	3000	630
28	CNS 63-1650	63	1650	3000	800
29	CNS 63-1775	63	1775	3000	1000
30	CNS 63-1900	63	1900	3000	1000
31	CNS 63-2100*	63	2100	3000	800
32	CNS 90-700**	90	700	3000	500
33	CNS 90-900	90	900	3000	500
34	CNS 90-1050	90	1050	3000	630
35	CNS 90-1150	90	1150	3000	630
36	CNS 90-1275	90	1275	3000	630
37	CNS 90-1422	90	1422	3000	800
38	CNS 90-1525	90	1525	3000	800
39	CNS 90-1650	90	1650	3000	800
40	CNS 90-1775	90	1775	3000	1000
41	CNS 90-1900	90	1900	3000	1000
42	CNS 90-2100*	90	2100	3000	1000
43	CNS 120-750**	120	700	3000	800
44	CNS 120-900	120	900	3000	1000
45	CNS 120-1050	120	1050	3000	1000
46	CNS 120-1150	120	1150	3000	1000
47	CNS 120-1275	120	1275	3000	1000
48	CNS 120-1422	120	1422	3000	1250
49	CNS 120-1525	120	1525	3000	1250
50	CNS 120-1650	120	1650	3000	1600
51	CNS 120-1775	120	1775	3000	1600
52	CNS 120-1900	120	1900	3000	1600
53	CNS 120-2100*	120	2100	3000	1250
54	CNS 180-700**	180	700	3000	800
55	CNS 180-900	180	900	3000	800
56	CNS 180-1050	180	1050	3000	100
57	CNS 180-1150	180	1150	3000	1000
58	CNS 180-1275	180	1275	зооо	1000
59	CNS 180-1422	180	1422	3000	1250
60	CNS 180-1525	180	1525	3000	1250
61	CNS 180-1650	180	1650	3000	1600
62	CNS 180-1775	180	1775	3000	1600
63	CNS 180-1900	180	1900	3000	1600
64	CNS 180-2100*	180	2100	3000	1600
65	CNS 200-2050**	200	2050	3000	1600
55	CNS 200-2200**	200	2200	3000	2000
67	CNS 240-700**	240	700	3000	800
68	CNS 240-900	240	900	3000	1000
69	CNS 240-1050	240	1050	3000	1000
70	CNS 240-1150	240	1150	3000	1250
71	CNS 240-1275	240	1275	3000	1250
72	CNS 240-1422	240	1422	3000	1250
73	CNS 240-1525	240	1525	3000	1600
74	CNS 240-1650	240	1650	3000	1600
75	CNS 240-1775	240	1775	3000	1600
76	CNS 240-1900	240	1900	3000	2000
77	CNS 240-2100*	240	2100*	3000	2000
78	CNS 315-1050	315	1050	3000	1600
79	CNS 315-1422	315	1422	3000	2000
80	CNS 315-1900	315	1900	3000	2500
81	CNS 500-1050	500	1050	3000	2500
82	CNS 500-1422	500	1422	3000	3150
83	CNS 500-1900	500	1900	3000	4000
84	CNS 630-1050	630	1050	3000	2500
85	CNS 630-1422	630	1422	3000	3150
86	CNS 630-1900	630	1900	3000	4000
87	CNS 720-1050	720	1050	3000	2500
88	CNS 720-1422	720	1422	3000	3150
89	CNS 720-1900	720	1900	3000	4000
90	CNS 300-1800***	300	1575	3000	3150
91	CNS 300-1800***	300	1800	3000	3150
92	ЦНС 360-2000***	360	2000	3000	3150
93	CNS 360-2000***	250	2370	3000	2500
94	CNS 360-2000***	341	1891	3000	3150
95	CNS 500-1900***	500	1900	3000	5000
96	CNS 500-1900***	567	2000	3000	5000
97	CNS 5Ш-19Ю-1***	800	1390	3000	5000
98	CNS 630-1700***	630	1700	3000	4000