Languages

CANNED MOTOR PUMPS OF NH SERIES

Canned motor pumps of NH series, types 1, 2, 4, 5

Sealed one-piece single-stage;
Pumping of non-aggressive liquids with a corrosion rate of up to 0.01 mm per year for the carbon steel flow section;
Explosion protection in accordance with 1ExdsIIBT 4X.

Performance: 3,2 - 500 m3/h;
Pumping head: 20 - 125 m;
Rotary speed: 1500 to 3000 min-1;
Working temperature: от -40 till +100 °C;
Viscosity up to 40 mm2/s;
Pressure in the circuit: up to 40 bar;
Engine power: 1.5 - 132 kWt.

Example of conventional designation of the NH type canned motor pumps::

a) pumping liquid of a density from 700 to 1000 kg/m3, viscosity of 1 cSt, with protection against explosion 1ExdsIIBT4 X:
Electric centrifugal hermetic pump NH 25-50-1 SF 37267809-002: 2007, where:
NH - type (canned motor pump for neutral liquids);
25 - rated flow in cubic meters per hour (m3/h);
50 - pressure at rated flow in meters (m);
 
1 – structural design;
SF 37267809-002:2007 - designation of technical conditions;
b) also with explosion protection 1ExdsIIST4 X:
Electric centrifugal hermetic pump HГ 15-50-1C
SF 37267809-002:2007;
c) also with a density of pumped liquid from 1000 to 1300 kg/m3 (version ‘a’ of impeller turning) or from 1300 to 1600 kg/m3 (option ‘b’), with a viscosity of 3 cSt:
Electric centrifugal hermetic pump NH 25-50а-1 or NH 25-50b-1 SF 37267809-002:2007;
d) with density of pumped liquid from 700 kg/m3, a viscosity of up to cSt;
Electric centrifugal hermetic pump NH 25-50-1L SF 37267809-002:2007;
Notes
1. Characteristics of pumped product:
  • density - up to 1600 kg/m3 - for NH electric pumps;
  • up to 700 kg/m3 - for NH electric pumps (L);
  • viscosity - of up to 40 cSt – for NH electric pumps;
  • up to 5 cSt - for NH canned motor pumps (L);
  • temperature (see table).
  • availability of solid nonabrasive impurities – a size of up to 0,2 mm and up to 0.2% in terms of weight is admitted.
2. The parameters in the Table are given
  • for NH electric pumps – for operating liquid with a density of 1000 kg/m3 and viscosity of 1 cSt;
  • for NH electric pumps (L) - for operating liquid with a density of 700 kg/m3 and viscosity of 5 cSt.
 
3. When pumping liquids with a density of over 1000 kg/m3 by electric pumps and (or) taking into account viscosity, pumps are supplied with reduced pressure due to impeller turning on the outside diameter in order to avoid overloading of the motor.
4. The pressure in the electric circuit:
  • up to 16 kgf/cm2 - for electric pumps versions 1,1L, 2,2L;
  • up to 40 kgf/cm2 - for electric pumps versions 4,4L, 5,5 L.
 
5. Electric pumps are made at 380, 660 V (specified when ordering), a current frequency of 50 Hz.
6. Mark of explosion protection - 1ЕхdsIIВТ4 Х or 1ЕхdsIIСТ4 Х (specified when ordering):
7. More detailed information, including graphic specifications, schemes of binding and control, description of the structure, installation and operation rules, are specified in the operational documentation of the electric pump.

Basic Parameters of Electric Pumps

Designation of canned motor pumps - 1; Rated flow, m3/h; - 2; Pressure at rated flow, m - 3; Operational interval of flow, m3/h - 4; Acceptable NPSH at rated flow, m - 5; Rated power of the built-in motor, kW - 6; Temperature of pumped liquid, °C - 7; Type of liquid cooling (L) or without cooling (W/L) - 8
1
2
3
4
5
6
7
8
NH 3,2-30-2 (2L)
3,2
30
1,5-4
2,3
1,5 (1,1)
-40...+100
W/L
NH 3,2-30-5 (5L)
3,2
30
1,5-4
2,3
1,5 (1,1)
-40...+100
W/L
NH 3,2-60-2 (2L)
3,2
60
1,5-4
2,7
3,0 (2,2)
-40...+100
W/L
NH 3,2-60-5 (5L)
3,2
60
1,5-4
2,7
3,0 (2,2)
-40...+100
W/L
NH 3,2-90-2 (2L)
3,2
90
1,5-4
3,0
4,0 (3,0)
-40...+100
W/L
NH 3,2-90-5 (5L)
3,2
90
1,5-4
3,0
4,0 (3,0)
-40...+100
W/L
NH 6,3-20-2 (2L)
6,3
20
2,5-9,5
1,5
1,5 (1,1)
-40...+100
W/L
NH 6,3-20-5 (5L)
6,3
20
2,5-9,5
1,5
1,5 (1,1)
-40...+100
W/L
NH 6,3-32-2 (2L)
6,3
32
2,5-9,5
1,5
2,2 (1,5)
-40...+100
W/L
NH 6,3-32-5 (5L)
6,3
32
2,5-9,5
1,5
2,2 (1,5)
-40...+100
W/L
NH 6,3-50-2 (2L)
6,3
50
2,5-9,5
1,8
4,0 (3,0)
-40...+100
W/L
NH 6,3-50-5 (5L)
6,3
50
2,5-9,5
1,8
4,0 (3,0)
-40...+100
W/L
NH 6,3-70-1 (4)
6,3
70
2,5-9,5
1,5
4,0
-40...+40
W/L
NH 6,3-70-2 (5)
6,3
70
2,5-9,5
1,5
4,0
+40...+100
L
NH 6,3-100-1 (1L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
-40...+40
W/L
NH 6,3-100-2 (2L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
+40...+100
L
NH 6,3-100-4 (4L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
-40...+40
W/L
NH 6,3-100-5 (5L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
+40...+100
L
NH 6,3-150-1L
6,3
150
2,5-9,5
2,5
7,5
-40...+40
W/L
NH 6,3-150-2L
6,3
150
2,5-9,5
2,5
7,5
+40...+100
L
NH 6,3-150-4 (4L)
6,3
150
2,5-9,5
2,5
11 (7,5)
-40...+40
W/L
NH 6,3-150-5 (5L)
6,3
150
2,5-9,5
2,5
11 (7,5)
+40...+100
L
NH 12,5-20-2 (2L)
12,5
20
5-18
1,8
2,2 (1,5)
-40...+100
W/L
NH 12,5-20-5 (5L)
12,5
20
5-18
1,8
2,2 (1,5)
-40...+100
W/L
NH 12,5-50-2 (2L)
12,5
50
5-18
1,8
4,0 (3,0)
-40...+100
W/L
NH 12,5-50-5 (5L)
12,5
50
5-18
1,8
4,0 (3,0)
-40...+100
W/L
NH 12,5-80-1 (1L)
12,5
80
5-18
2,2
9,0 (7,5)
-40...+40
W/L
NH 12,5-80-2 (2L)
12,5
80
5-18
2,2
9,0 (7,5)
+40...+100
L
NH 12,5-80-4 (4L)
12,5
80
5-18
2,2
9,0 (7,5)
-40...+40
W/L
NH 12,5-80-5 (5L)
12,5
80
5-18
2,2
9,0 (7,5)
+40...+100
L
NH 12,5-100-1 (1L)
12,5
100
5-18
1,3
9,0 (7,5)
-40...+40
W/L
NH 3,2-30-2 (2L)
3,2
30
1,5-4
2,3
1,5 (1,1)
-40...+100
W/L
NH 3,2-30-5 (5L)
3,2
30
1,5-4
2,3
1,5 (1,1)
-40...+100
W/L
NH 3,2-60-2 (2L)
3,2
60
1,5-4
2,7
3,0 (2,2)
-40...+100
W/L
NH 3,2-60-5 (5L)
3,2
60
1,5-4
2,7
3,0 (2,2)
-40...+100
W/L
NH 3,2-90-2 (2L)
3,2
90
1,5-4
3,0
4,0 (3,0)
-40...+100
W/L
NH 3,2-90-5 (5L)
3,2
90
1,5-4
3,0
4,0 (3,0)
-40...+100
W/L
NH 6,3-20-2 (2L)
6,3
20
2,5-9,5
1,5
1,5 (1,1)
-40...+100
W/L
NH 6,3-20-5 (5L)
6,3
20
2,5-9,5
1,5
1,5 (1,1)
-40...+100
W/L
NH 6,3-32-2 (2L)
6,3
32
2,5-9,5
1,5
2,2 (1,5)
-40...+100
W/L
NH 6,3-32-5 (5L)
6,3
32
2,5-9,5
1,5
2,2 (1,5)
-40...+100
W/L
NH 6,3-50-2 (2L)
6,3
50
2,5-9,5
1,8
4,0 (3,0)
-40...+100
W/L
NH 6,3-50-5 (5L)
6,3
50
2,5-9,5
1,8
4,0 (3,0)
-40...+100
W/L
NH 6,3-70-1 (4)
6,3
70
2,5-9,5
1,5
4,0
-40...+40
W/L
NH 6,3-70-2 (5)
6,3
70
2,5-9,5
1,5
4,0
+40...+100
L
NH 6,3-100-1 (1L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
-40...+40
W/L
NH 6,3-100-2 (2L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
+40...+100
L
NH 6,3-100-4 (4L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
-40...+40
W/L
NH 6,3-100-5 (5L)
6,3
100
2,5-9,5
2,5
7,5 (5,5)
+40...+100
L
NH 6,3-150-1L
6,3
150
2,5-9,5
2,5
7,5
-40...+40
W/L
NH 6,3-150-2L
6,3
150
2,5-9,5
2,5
7,5
+40...+100
L
NH 6,3-150-4 (4L)
6,3
150
2,5-9,5
2,5
11 (7,5)
-40...+40
W/L
NH 6,3-150-5 (5L)
6,3
150
2,5-9,5
2,5
11 (7,5)
+40...+100
L
NH 12,5-20-2 (2L)
12,5
20
5-18
1,8
2,2 (1,5)
-40...+100
W/L
NH 12,5-20-5 (5L)
12,5
20
5-18
1,8
2,2 (1,5)
-40...+100
W/L
NH 12,5-50-2 (2L)
12,5
50
5-18
1,8
4,0 (3,0)
-40...+100
W/L
NH 12,5-50-5 (5L)
12,5
50
5-18
1,8
4,0 (3,0)
-40...+100
W/L
NH 12,5-80-1 (1L)
12,5
80
5-18
2,2
9,0 (7,5)
-40...+40
W/L
NH 12,5-80-2 (2L)
12,5
80
5-18
2,2
9,0 (7,5)
+40...+100
L
NH 12,5-100-2 (2L)
12,5
100
5-18
1,3
9,0 (7,5)
+40...+100
L
NH 12,5-100-4 (4L)
12,5
100
5-18
1,3
9,0 (7,5)
-40...+40
W/L
NH 12,5-100-5 (5L)
12,5
100
5-18
1,3
9,0 (7,5)
+40...+100
L
NH 12,5-160-4 (4L)
12,5
160
5-18
1,8
18,5 (15)
-40...+40
W/L
NH 12,5-160-5 (5L)
12,5
160
5-18
1,8
18,5 (15)
+40...+100
L
NH 12,5-240-4 (4L)
12,5
240
5-18
2,5
30 (22)
-40...+40
W/L
NH 12,5-240-5 (5L)
12,5
240
5-18
2,5
30 (22)
+40...+100
L
NH 25-20-2 (2L)
25
20
15-37
2,7
3,0 (2,2)
-40...+100
W/L
NH 25-20-5 (5L)
25
20
15-37
2,7
3,0 (2,2)
-40...+100
W/L
NH 25-32-2 (2L)
25
32
15-37
2,5
5,5 (4,0)
-40...+100
W/L
NH 25-32-5 (5L)
25
32
15-37
2,5
5,5 (4,0)
-40...+100
W/L
NH 25-50-1 (1L)
25
50
15-37
2,3
7,5 (5,5)
-40...+40
W/L
NH 25-50-2 (2L)
25
50
15-37
2,3
7,5 (5,5)
+40...+100
L
NH 25-50-4 (4L)
25
50
15-37
2,3
7,5 (5,5)
-40...+40
W/L
NH 25-50-5 (5L)
25
50
15-37
2,3
7,5 (5,5)
40...+100
L
NH 25-80-1 (1L)
25
80
15-37
2,5
15,0 (11,0)
-40...+40
W/L
NH 25-80-2 (2L)
25
80
15-37
2,5
15,0 (11,0)
+40...+100
L
NH 25-80-4 (4L)
25
80
15-37
2,5
15,0 (11,0)
-40...+40
W/L
NH 25-80-5 (5L)
25
80
15-37
2,5
15,0 (11,0)
+40...+100
L
NH 25-100-1 (1L)
25
100
15-37
1,8
15,0 (11,0)
-40...+40
W/L
NH 25-100-2 (2L)
25
100
15-37
1,8
15,0 (11,0)
+40...+100
L
NH 25-100-4 (4L)
25
100
15-37
1,8
15,0 (11,0)
-40...+40
W/L
NH 25-100-5 (5L)
25
100
15-37
1,8
15,0 (11,0)
+40...+100
L
NH 25-160-4 (4L)
25
160
15-37
1,9
30 (22)
-40...+40
W/L
NH 25-160-5 (5L)
25
160
15-37
1,9
30 (22)
+40...+100
L
NH 25-240-5 (5L)
25
240
15-37
1,9
45 (37)
-40...+100
 L
NH 50-50-1 (1L)
50
50
35-75
3,2
15,0 (11,0)
-40...+40
W/L
NH 50-50-2 (2L)
50
50
35-75
3,2
15,0 (11,0)
+40...+100
L
NH 50-50-4 (4L)
50
50
35-75
3,2
15,0 (11,0)
-40...+40
W/L
NH 50-50-5 (5L)
50
50
35-75
3,2
15,0 (11,0)
+40...+100
L
NH 50-80-1 (1L)
50
80
35-75
2,4
22,0 (18,5)
-40...+40
W/L
NH 50-80-2 (2L)
50
80
35-75
2,4
22,0 (18,5)
+40...+100
L
NH 50-80-4 (4L)
50
80
35-75
2,4
22,0 (18,5)
-40...+100
W/L
NH 50-80-5 (5L)
50
80
35-75
2,4
22,0 (18,5)
+40...+100
L
NH 50-125-2 (2L)
50
125
35-75
2,6
37,0 (30)
-40...+100
L
NH 50-125-5 (5L)
50
125
35-75
2,6
37,0 (30)
-40...+100
L
NH 50-160-5 (5L)
50
160
35-75
2,5
45 (37)
-40...+100
L
NH 50-250-5 (5L)
50
250
35-75
2,4
90 (65)
-40...+100
L
NH 50-375-5 (5L)
50
375
35-75
2,6
132 (90)
-40...+100
L
NH 100-32-1 (1L)
100
32
65-140
3,8
15,0 (11,0)
-40...+40
W/L
NH 100-32-2 (2L)
100
32
65-140
3,8
15,0 (11,0)
+40...+100
L
NH 100-32-4 (4L)
100
32
65-140
3,8
15,0 (11,0)
-40...+40
W/L
NH 100-32-5 (5L)
100
32
65-140
3,8
15,0 (11,0)
+40...+100
L
NH 100-50-1 (1L)
100
50
65-140
3,8
30 (22)
-40...+40
W/L
NH 100-50-2 (2L)
100
50
65-140
3,8
30 (22)
+40...+100
L
NH 100-50-4 (4L)
100
50
65-140
3,8
30 (22)
-40...+40
W/L
NH 100-50-5 (5L)
100
50
65-140
3,8
30 (22)
+40...+100
L
NH 100-80-2 (2L)
100
80
65-140
3,3
41 (30)
-40...+100
L
NH 100-80-5 (5L)
100
80
65-140
3,3
41 (30)
-40...+100
L
NH 100-125-2(2L)
100
125
65-140
3,3
75 (55)
-40...+100
L
NH 100-125-5 (5L)
100
125
65-140
3,3
75 (55)
-40...+100
L
NH 100-160-5 (5L)
100
160
65-130
3,0
90 (65)
-40...+100
L
NH 100-250-5 (5L)
100
250
65-130
4,0
132 (110)
-40...+100
L
NH 100-375-5L
100
375
65-120
4,5
150
-40...+100
L
NH 200-50-2 (2L)
200
50
140-260
5,2
45 (33)
-40...+100
L
NH 200-50-5 (5L)
200
50
140-261
5,2
45 (33)
-40...+100
L
NH 200-80-2 (2L)
200
80
140-262
4,8
75 (55)
-40...+100
L
NH 200-80-5 (5L)
200
80
140-263
4,8
75 (55)
-40...+100
L
NH 200-100-2 (2L)
200
100
140-264
5,5
90 (65)
-40...+100
L
NH 200-100-5 (5L)
200
100
140-265
5,5
90 (65)
-40...+100
L
NH 200-160-2 (2L)
200
160
140-266
5,0
180 (132)
-40...+100
L
NH 200-160-5 (5L)
200
160
140-267
5,0
180 (132)
-40...+100
L
NH 300-100-2 (2L)
300
100
240-340
5,5
132 (90)
-40...+100
L
NH 300-100-5(5L)
300
100
240-340
5,5
132 (90)
-40...+100
L
NH 500-75-2 (2L)
500
75
400-540
12,0
180 (110)
-40...+100
L
NH 500-75-5 (5L)
500
75
400-540
12,0
180 (110)
-40...+100
L
1
2
3
4
5
6
7
8
Designation of canned motor pumps - 1; Rated flow, m3/h; - 2; Pressure at rated flow, m - 3; Operational interval of flow, m3/h - 4; Acceptable NPSH at rated flow, m - 5; Rated power of the built-in motor, kW - 6; Temperature of pumped liquid, °C - 7; Type of liquid cooling (L) or without cooling (W/L) - 8