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Yongjia County Marine Water Pump Factory
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    No. 8 Linpu Road, Zhangbao Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province
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SOW type snail shell double suction open water pipeline pump
SOW type snail shell double suction open water pipeline pump
SOW type snail shell double suction open water pipeline pump
The SOW type snail shell double suction water pipeline pump is a horizontally split snail shell double suction pump, mainly used to transport clean wa

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Product details

Model Meaning
SOW型蜗壳式双吸清水管道泵号意义

Product Introduction
The SOW type snail shell double suction water pipeline pump is a horizontally split snail shell double suction pump, mainly used to transport clean water with a temperature not higher than 105 ℃ or liquids with physical and chemical properties similar to water. As a high flow pump, it is suitable for conveying liquids in water plants, pump stations, power stations, air conditioning circulating water, heating hot water circulation, industrial water supply systems, fire protection systems, ships, oil refining industry (general liquids) and other occasions.

Operating Data
Export diameter: DN=80-500 mm
Flow rate: 50-4200 m3/h (rated point)
Head: n=7.6-160m (rated point)
Allowable working pressure: 2.5 MPa; Allowable test pressure: 3.75 MPa
Medium: Clear water or other liquids with physical and chemical properties similar to clear water (solid particles ≤ 80 mg/L).
Temperature: ≤ 105 ℃

hydraulic performance
The optimized hydraulic model does not compromise the excellent hydraulic performance of the pump, and there is no axial force (theoretically) which poses a challenge for the operation of large pumps, especially for water pumps. The pump body, pump cover, and impeller are precision cast, and the smooth flow surface enhances the pump's cavitation performance and efficiency.

Sealing performance
According to the conveying medium or user requirements, use packing seals or mechanical seals without being restricted by steering. For packing seals, there is sufficient space for replacing the packing.

working conditions
1. The allowable working pressure for SOW type snail shell double suction clean water pipeline pump is 2.5 MPa; The inlet pressure of the SOW type snail shell double suction clean water pipeline pump plus the head of the double suction pump is ≤ 2.5 MPa. According to the high pressure borne by the chemical pump casing, the materials of the pump body and cover are gray cast iron (1.6 MPa), ductile iron (2.0 MPa), and cast steel (2.5 MPa). Please indicate the pressure condition or material of the pump when placing an order.
2. Medium: Water with a temperature ≤ 105 ℃ or other liquids with physical and chemical properties similar to water (solid particles ≤ 80 mg/L).

bearing
1. The single-stage double suction pump adopts a sealed rolling bearing lubricated with grease, which is easy to maintain and has a long operating time.
2. The snail shell double suction pump is equipped with a constant oil level oil cup and can also be lubricated with thin oil.
3. Imported (SKF, NSK, NTN) high-quality bearings are selected for smooth operation, low noise, and long service life.

STRUCTURE DESCRIPTION
Compact structure and good stability. The SOW type snail shell double suction pipeline pump is a pump shell with an open structure, and the inlet and outlet are both on the pump body. During maintenance, only the pump cover needs to be lifted out, and the rotor components can be removed for maintenance operations without disassembling the pipeline, which is very convenient.
The electric motor (driver) can be installed on the left or right end as needed, making it convenient for on-site installation. Structurally shortening the axial dimensions of rotor components results in better shaft rigidity and more stable and reliable operation. There is a pump body sealing ring, and the impeller sealing ring is an optional component. The sealing ring can be replaced after wear, reducing operation and maintenance costs.

Main component materials

Part name
Materials available for selection (optional)
axle
45, 2Cr13 (stainless steel)
Pump body, pump cover
HT250, QT400-15 (ductile iron) ZG230-450
impeller
HT200, ZCuSn11 (bronze), ZG1Cr18Ni9 (stainless steel)
Sealing ring
HT250、QT400-15、 (Ductile iron) ZCuSn11 (bronze), ZG1Cr18Ni9 (stainless steel)

Structure diagram

SOW型蜗壳式双吸清水管道泵结构图
Serial Number
name
Serial Number
name
Serial Number
name
Serial Number
name
1
pump body
7
O-ring seal
13
axle
19
BEARING SLEEVE
2
impeller
8
Sealing body
14
Skeleton oil seal
20
bearing
3
pump cover
9
Sealing gland or packing gland
15
circlip
21
bearing washer
4
Water flushing pipe components
10
water deflector
16
Bearing retainer ring
22
DISC SPRING
5
Sealing ring
11
bearing gland
17
shaft sleeve
23
locking nut
6
Pipe plug
12
Bearing body
18
Mechanical seal or packing seal

Spectrogram

SOW型蜗壳式双吸清水管道泵型谱图
SOW型蜗壳式双吸清水管道泵型谱图

performance parameter

Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-220(I)
22.0
83.5
121.0
6.1
23.2
33.6
17.0
13.8
10.0
1480
5.5
82
1.6
181
A
20.0
77.2
108.0
5.6
21.4
30.0
14.8
11.8
8.7
4
81
B
17.5
70.4
96.0
4.86
19.6
26.6
12.4
9.8
7.7
3
80.5
C
16.0
64.4
83.0
4.4
17.9
23.0
10.6
8.2
6.8
3
78
60.0
164.5
240.0
16.7
45.7
66.7
64.5
55.0
40.0
2950
37
82
4.5
181
A
59.0
152.9
219.0
16.3
42.5
60.8
58.0
47.5
34.0

30
81
B
55.0
138.5
199.0
15.3
38.5
55.3
49.0
39.0
30.0
30
80.5
C
52.0
128.4
170.0
14.4
35.7
47.0
42.0
33.5
27.5
22
77.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-220
17.0
66.5
108.0
4.7
18.5
30.0
16.0
12.8
7.8
1480
4
8 1
1.7
181
A
16.0
61.1
98.0
4.4
17.0
27.2
13.9
10.8
7.0
3
80
B
15.0
55.8
85.0
4.2
15.5
23.6
11.8
9.0
6.2
3
78
C
14.5
51.3
72.0
4.0
14.3
20.0
10.0
7.6
6.1
2.2
74
60.0
134.5
218.0
16.6
37.4
60.6
62.0
51.0
32.0
2950
30
81
3.5
181
A
58.0
124.2
197.0
16.1
34.5
54.7
53.5
43.5
28.0
30
80
B
57.0
113
170.0
15.8
31.4
47.2
45.0
36.0
25.0
22
78.2
C
55.5
105
142.0
15.2
29.2
39.4
37.8
31.0
24.0
18.5
74
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-280(I)
26.0
104.5
138.0
7.2
29.0
38.3
24.5
22.5
18.0
1480
11
78.5
2.3
194
A
25.0
96
129.0
6.9
26.7
35.8
22.0
19.0
16.0
11
78
B
22
88.1
116.0
6.1
24.5
32.2
19.5
16.0
13.0
7.5
76
C
21.0
79.4
105.0
5.8
22.0
29.0
16.8
13.0
10.5
5.5
75
80.0
208.0
280.0
2.0
57.8
77.8
107.0
90.0
77.5
2950
75
78.5
6.3
194
A
78.0
192.4
235.0
21.7
53.4
65.3
92.5
77.0
68.0
75
77.5
B
75.0
174.7
220.0
20.8
48.5
61.1
77.5
63.5
55.0
55
76
C
74.0
155.0
200.0
20.5
43.0
55.6
64.0
50.0
45.0
37
75
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-280
22.0
86.0
112.0
6.1
23.9
31.1
25.9
20.7
16.5
1480
7.5
77
1.9
194
A
21.0
80.0
102.0
5.8
22.3
28.3
21.8
18.1
14.3
7.5
76
B
19.5
73.2
92.0
5.4
20.3
25.5
18.7
15.0
12.0
5.5
75
C
18.0
66.8
82.0
5.0
18.6
22.8
15.8
12.5
10.5
4
74
60.0
172.0
220.5
16.7
47.8
61.2
102.0
82.5
66.0
2950
75
77
6.8
194
A
58.0
160.0
203.0
16.1
44.4
56.3
88.0
71.5
57.0
55
76.2
B
57.0
146.7
188.5
15.8
40.8
52.3
74.0
60.0
49.0
45
75.2
C
56.0
132.6
170.0
15.5
36.8
47.2
61.0
49.0
40.0
30
74.4
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-350(I)
29.0
114.4
150.0
8.1
31.8
41.7
43.5
38.8
29.3
1480
22
71.5
2.3
204
A
26.0
105.5
133.0
7.2
29.3
36.9
37.5
33.0
25.0
15
70.5
B
22.0
96.3
117.0
6.1
26.8
32.5
32.0
27.5
22.0
15
70
C
20.0
87.5
102.0
5.6
24.2
28.3
26.0
22.5
17.9
11
67.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
80-350
26.0
100.0
132.0
7.2
27.8
36.7
43.0
35.5
27.9
1480
15
73
2.5
204
A
22.0
93.1
120.0
6.1
25.9
33.3
37.0
30.8
23.0
15
70
B
20.0
82.8
98.0
5.6
23.0
27.2
31.0
25.5
22.8
11
66
C
18.0
70.0
71.0
5.0
19.4
19.7
24.0
20.0
19.0
7.5
64
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-260(I)
38.0
145.0
212.0
10.6
40.3
58.9
23.5
18.8
13.1
1480
11
82.5
2.4
207
A
37.0
132.9
192.0
10.3
36.9
53.0
20.1
15.8
11.5
11
81
B
36.0
122.9
173.0
10.0
34.1
48.1
17.0
13.5
10.2
7.5
79
C
34.0
115.9
154.0
9.4
32.2
42.8
14.5
11.0
8.9
5.5
77.5
148.5
289.0
375.0
41.3
80.3
104.2
90.0
75.0
62.0
2950
90
85.5
7.1
207
A
1 20.8
264.9
340.0
3 3.6
7 3.6
94.0
88.5
63.0
52.9
75
80.5
B
70.0
240.6
32 5.0
1 9.4
66.8
90.3
67.5
52.0
43.5
55
79
C
60.0
223.4
295.0
1 6.7
62.0
8 1.9
57.2
44.8
36.0
45
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-260
30.0
123.5
170.0
8.3
34.3
47.2
21.7
17.0
12.5
1480
11
81.5
1.9
207
A
28.0
114.0
154.0
7.8
31.7
42.8
19.0
14.5
11.3
7.5
79.5
B
26.0
105.9
143.0
7.2
29.4
39.7
16.3
12.5
9.2
7.5
78
C
25.0
99.3
131.0
6.9
27.6
36.4
13.3
11.0
7.9
5.5
76
52.0
245.5
340.0
14.4
68.2
94.4
88.0
68.0
50.5
2950
75
81.5
7.4
207
A
51.5
227.7
310.0
14.3
63.3
86.1
76.0
58.5
53.5
55
79.5
B
50.5
212.6
280.0
14.0
59.0
77.8
65.0
51.0
37.0
45
77.5
C
49.0
195.0
260.0
13.6
54.2
72.2
55.0
43.0
31.5
37
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-320(I)
47.0
185.5
225.0
13.1
51.5
62.5
38.1
31.2
26.0
1480
22
810
2.6
223
A
42.0
172.0
204.0
11.7
47.9
56.7
33.2
27.0
22.5
18.5
79.6
B
38.0
157.5
184.0
10.6
43.8
51.1
27.9
22.5
18.5
15
79.3
C
37.0
142.8
165.0
10.3
39.7
45.8
23.2
18.5
16.0
11
79
185.0
368.0
450.0
51.4
102.2
125.0
148.0
123.0
102.0
2950
200
80
11
223
A
140.0
341.6
410.0
38.9
94.9
113.9
130.0
106.0
89.5
132
79.6
B
100.0
314.8
370.0
27.7
87.4
102.8
110.0
90.0
77.3
110
79.3
C
119.0
245.4
325.0
33.1
68.2
90.3
93.5
74.0
64.0
90
79
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-320
50.0
141.5
174.0
13.9
39.3
48.3
36.0
29.5
25.5
1480
18.5
78
2.2
223
A
48.0
131.6
164.0
13.3
36.6
45.6
31.0
25.5
21.6
15
77.6
B
47.0
120.0
152.0
13.1
33.3
42.2
26.0
21.2
17.9
11
77.3
C
44.0
112.4
143.0
12.2
31.2
39.7
21.5
17.0
14.1
11
77
70.0
283.0
350.0
19.4
78.6
97.2
146.0
119.0
101.0
2950
132
78
9.5
223
A
65.0
263.3
360.0
18.1
73.1
100.0
125.0
103.0
87.0
110
77.6
B
61.3
237.8
310.0
17.0
66.0
86.1
106.0
84.0
72.0
90
7.3
C
60.9
215.5
287.0
16.9
60.0
79.7
88.0
69.0
58.0
75
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-400(I)
70.0
185.5
241.5
19.4
51.5
67.0
63.0
52.0
39.0
1480
45
73
2.5
241
A
65.0
170.6
213.0
18.1
47.4
59.2
53.0
44.0
34.0
30
72
B
62.0
158.6
190.0
17.2
44.0
52.8
46.0
38.0
31.2
30
71
C
58.0
141.6
178.0
16.1
39.3
49.4
35.5
30.3
22.5
18.5
69
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
100-400
60.0
163.0
217.0
16.7
45.3
60.3
60.9
52.0
41.1
1480
37
72
3.1
241
A
58.0
149.9
188.0
16.1
41.6
52.2
50.2
44.0
35.0
30
69
B
54.0
138.4
168.0
15.0
38.5
46.7
42.9
37.5
31.0
22
66.5
C
51.0
121.1
135.0
14.2
33.6
37.5
33.5
28.7
25.8
18.5
63
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-240(I)
100.0
274.6
370.0
27.8
76.3
102.8
20.2
14.8
9.1
1480
18.5
85.5
1.8
249
A
92.0
259.3
332.0
25.6
72.0
92.2
18.3
13.2
8.3
15
84.5
B
82.0
232.4
285.0
22.8
64.5
79.2
15.9
10.6
7.6
15
82.5
C
78.0
210.5
240.0
21.7
58.5
66.7
13.2
8.7
6.8
11
77.5
139.5
533.5
715.0
38.7
148.2
198.6
83.5
60.0
40.0
2950
132
85.5
6.8
249249
A
124.0
496.7
650.0
34.4
138.0
180.6
73.0
52.0
36.0
110
84
B
119.0
454.3
550.0
33.1
126.2
152.8
63.5
43.5
32.0
75
82
C
103.0
411.6
460.0
28.6
114.3
127.8
63.0
34.0
30.0
75
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-240
100.0
256.5
320.1
27.8
71.2
88.9
20.2
15.1
10.8
1480
15
84.5
2.2
249
A
94.0
242.5
300.4
26.1
67.4
83.4
17.6
13.5
9.1
15
84
B
90.0
223.8
265.0
25.0
62.2
73.6
15.0
11.5
8.4
11
82
C
82.0
199.1
220.0
22.8
55.3
61.1
12.4
9.1
7.8
7.5
78
111.0
472.5
662.0
30.8
131.2
183.9
84.0
60.5
40.0
2950
110
84.5
8.7
249
A
106.0
442.2
592.0
29.4
122.8
141.7
73.5
53.0
36.5
90
84
B
102.0
393.7
510.0
28.3
109.4
141.0
62.8
42.0
33.5
75
82
C
90.0
369.5
415.0
25.0
102.6
115.0
52.5
37.0
33.0
75
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-300(I)
100.0
270.0
375.0
27.8
75.0
104.2
32.5
27.0
21.0
1480
30
84
1.9
274
A
80.3
243.7
348.0
22.3
67.7
96.7
27.5
22.0
15.5
22
82
B
75.0
220.5
310.0
20.8
61.2
86.1
23.5
18.0
12.5
18.5
80
C
60.5
195.8
270.0
16.8
54.4
75.0
19.0
14.2
10.5
15
78
380.0
535.5
640.0
105.6
148.8
177.8
120.0
108.0
92.6
2950
200
84
7.6
274
A
285.0
483.4
630.0
79.2
134.3
175.0
103.5
88.0
77.8
160
82
B
190.0
473.2
600.0
52.8
121.5
166.7
92.0
72.0
60.0
132
80
C
90.2
389.0
500.0
25.1
108.1
138.9
80.0
57.0
43.5
110
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-300
100.0
242.5
370.0
27.8
67.4
102.8
32.0
25.0
17.1
1480
30
83
1.9
274
A
90.3
222.3
290.0
25.1
61.8
80.6
26.3
21.0
5.0
18.5
82
B
80.0
202.9
250.0
22.2
56.4
69.4
22.1
17.5
132.2
15
79
C
70.1
179.5
210.0
19.5
49.9
58.3
17.3
13.7
11.9
11
76
230.0
479.0
580.0
63.9
133.1
161.1
122.0
100.0
82.0
2950
200
83
7.9
274
A
182.0
437.7
540.0
50.5
121.6
150.0
106.2
83.5
63.5
160
82
B
128.0
400.8
510.0
35.6
111.3
141.7
89.0
70.0
51.0
110
79
C
85.0
355.2
428.0
23.6
98.7
118.9
72.0
55.0
42.0
90
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-380(I)
125.0
310.5
435.0
340.7
86.3
120.8
53.1
47.0
37.5
1480
75
80
2.1
298
A
104.0
282.8
395.0
28.9
78.6
109.7
45.0
39.0
31.8
45
79
B
93.0
254.2
350.0
25.8
70.6
97.2
36.9
31.5
25.0
37
78
C
85.5
221.9
295.2
23.7
61.6
109.8
27.9
24.0
18.8
30
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-380
100.2
278.0
396.5
27.8
77.2
110.0
50.2
43.0
33.1
1480
55
79
2.4
298
A
92.1
257.9
349.6
25.8
71.6
97.1
42.9
37.0
28.4
45
78
B
84.0
234.1
300.0
23.3
65.0
83.3
35.9
30.5
24.1
30
77
C
79.1
209.8
250.5
22.0
58.3
69.6
28.9
24.5
20.0
22
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
125-480(I)
1 09.2
328.5
380.4
30.3
9 1.3
1 05.7
86.0
7'6.0
7 1.0
1480
11 0
80
2.3
331
A
100.0
307.3
350.9
27.8
85.4
97.4
74.9
66.5
55.0
90
78.5
B
80.4
282.0
300.4
22.3
78.3
83.4
64.7
56.0
51.3
75
77
C
60.0
250.4
270.4
16.6
69.6
75.1
54.6
44.2
40.8
45
76
125-480
100.0
294.5
370.0
27.8
81.8
102.8
81.2
69.5
61.5
1480
90
79
2.7
331
A
90.1
274.8
320.2
25.0
76.3
88.9
70.0
60.5
55.1
75
78
B
85.3
257.2
284.5
23.7
71.4
79.0
60.9
53.0
46.1
55
77
C
78.5
230.0
238.8
21.8
63.9
66.3
51.2
43.5
41.3
37
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
150-280(I)
160.0
443.5
609.0
44.4
123.2
169.2
27.5
21.0
14.2
1480
37
87
2.4
347
A
150.5
410.6
5, 50.0
41.8
114.0
152.8
25.0
18.0
12.5
30
86
B
130.0
367.0
480.0
36.1
101.9
133.3
22.5
15.0
11.7
22
84
C
123.0
338.2
395.0
34.1
93.9
109.7
17.4
11.5
10.0
18.5
77
150-280
140.0
397.0
525.0
38.9
110.3
145.8
27.5
20.4
14.2
1480
30
86
2.5
347
A
135.0
364.4
496.0
37.5
100.7
137.8
24.1
17.0
11.9
30
85
B
128.0
340.7
446.0
35.6
94.6
123.9
21.8
14.5
10.8
22
84
C
120.0
318.1
380.0
33.3
88.4
105.6
17.5
11.5
9.3
18.5
80
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
150-350(I)
180.0
447.5
592.0
50.0
124.3
164.4
45.8
38.5
31.2
1480
75
85
2.5
359
A
175.0
404.2
580.0
48.6
112.3
161.1
38.6
31.0
22.4
55
83
B
162.0
363.0
495.0
45.0
100.8
137.5
33.1
25.0
18.1
37
81
C
150.0
324.7
421.0
41.7
90.2
116.9
27.0
20.0
14.9
30
78
150-350
150.0
407.5
550.0
41.7
113.2
152.8
45.0
35.0
26.8
1480
55
84
3.0
359
A
140.0
374.1
471.0
38.9
103.9
130.8
37.9
29.5
23.2
45
82
B
130.0
344.4
460.0
36.1
95.7
127.8
32.1
25.0
17.5
37
80
C
125.0
311.9
390.0
34.7
86.6
108.3
26.1
20.5
15.3
30
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
150-450(I)
200.0
515.5
640.0
55.6
143.2
177.8
76.1
66.0
57.1
1480
132
82
3.4
436
A
190.0
468.4
600.0
52.8
130.1
166.7
64.0
54.5
45.0
110
81
B
180.0
418.5
540.0
50.0
116.3
150.0
52.3
43.5
35.0
75
80
C
175.0
375.4
498.0
48.6
104.3
130.0
42.1
35.0
27.8
55
78.5
150-450
150.0
440.0
582.0
41.7
122.2
161.7
72.1
60.0
48.2
1480
110
81
3.7
436
A
140.0
401.7
550.0
38.9
111.6
152.8
60.0
50.0
36.9
90
80.5
B
129.0
359.3
490.0
35.8
99.8
136.1
49.5
40.0
30.5
75
80
C
115.0
326.3
430.0
31.9
90.6
119.4
40.0
33.0
24.8
45
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
150-570(I)
200.0
584.0
730.0
55.6
162.2
202.8
121.0
105.0
92.1
1480
250
80
4.2
646
A
180.0
536.2
660.0
50.0
148.9
183.3
105.0
88.5
80.5
200
79
B
169.0
493.6
620.0
46.9
137.1
172.2
90.8
75.0
68.0
160
78
C
150.0
450.0
530.0
41.7
125.0
147.2
77.2
61.5
55.9
132
77
150-570
200.0
537.0
620.0
55.6
149.2
172.2
111.0
90.0
81.9
1480
200
79
4.2
646
A
96.3
499.9
580.0
26.7
138.9
161.1
96.0
78.0
70.0
160
78
B
82.8
468.5
540.0
23.0
130.1
150.0
83.0
68.5
61.0
132
77
C
70.0
419.2
500.0
19.4
116.4
138.9
70.0
57.5
50.0
110
76
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
200-340(I)
250.0
695.5
940.0
69.4
193.2
261.1
40.0
30.0
20.0
1480
75
87.5
3.3
450
A
240.0
641.2
845.0
66.7
178.1
234.7
35.0
25.5
17.5
75
86.5
B
230.0
586.0
750.0
63.9
162.8
208.3
30.8
21.3
16.0
55
85
C
220.0
530.0
610.0
61.1
147.2
169.4
25.0
17.0
15.1
37
79
200-340
250.0
638.0
870.0
69.4
1 7 7.2
24 1.7
37.5
28.0
1 8.5
1480
75
86.5
2.5
450
A
240.0
596.8
795.0
66.7
165.8
220.8
33.0
24.5
16.8
55
86
B
235.0
552.5
705.0
65.2
153.5
195.8
28.5
21.0
15.1
45
84
C
225.0
497.1
600.0
62.5
138.1
166.7
23.1
17.0
14.0
37
82
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
200-410(I)
265.0
710.0
990.0
73.6
197.2
275.0
62.8
52.0
40.0
1480
132
86.5
2.4
517
A
249.0
641.9
895.0
69.1
178.3
248.6
64.0
42.5
30.9
110
84.5
B
238.0
586.6
780.0
66.1
63.0
216.7
46.0
35.5
25.0
90
83
C
220.0
525.6
660.0
6 1.1
146.0
166.7
38.5
28.5
21.0
75
8 1
200-410
250.0
649.0
865.0
69.4
180.3
240.2
62.1
48.0
37.1
1480
110
85.5
3.0
517
A
236.0
596.1
750.0
65.6
165.6
208.3
52.2
40.5
32.5
90
84
B
215.0
550.2
720.0
59.7
152.8
200.0
44.2
37.5
25.0
75
82
C
209.0
495.7
590.0
58.1
137.7
163.9
35.2
28.0
22.1
55
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
200-530(I)
475.0
818.0
1080.0
131.9
227.2
300.0
102.0
91.0
77.5
1480
280
83
3.5
840
A
460.0
750.0
965.0
127.8
208.3
268.1
86.0
76.5
66.2
250
82
B
440.0
687.9
905.0
122.2
191.1
251.4
71.0
62.5
52.1
200
80
C
420.0
630.0
795.0
116.7
175.0
220.8
55.0
47.5
41.8
132
78.5
200-530
260.0
735.0
955.0
72.2
204.2
265.3
98.0
81.7
66.9
1480
250
82
3.0
840
A
250.0
670.0
880.0
69.4
1 86.3
244.4
82.8
68.0
57.5
180
81
B
240.0
633.0
820.0
66.7
175.8
227.8
68.3
55.0
46.1
160
80
C
230.0
576.3
720.0
63.9
160.1
200.0
54.8
43.5
38.0
110
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
200-660(I)
280.0
793.0
935.0
77.8
220.3
259.7
167.0
150.0
140.0
1480
450
80
3.1
990
A
270.0
729.7
900.0
75.0
202.7
250.0
144.0
127.0
115.0
355
78.5
B
260.0
669.8
864.0
72.2
186.0
240.0
124.0
107.0
93.0
315
77
C
250.0
637.4
770.0
69.4
177.0
213.9
10.0
88.0
80.0
250
76
200-660
250.0
721.0
860.0
69.4
177.0
213.9
156.0
132.5
120.0
1480
400
79
2.9
990
A
240.0
670.2
790.0
66.7
186.2
219.4
132.0
114.5
103.0
315
78.5
B
230.0
621.6
720.0
63.9
172.7
200.0
114.0
98.5
90.0
250
78
C
215.0
570.6
690.0
59.7
158.5
191.7
98.0
83.0
72.0
200
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
250-390(I)
400.0
1052.0
1450.0
111.1
292.2
402.8
50.0
39.0
28.0
1480
160
88
2.8
665
A
380.0
967.7
1310.0
105.6
268.8
363.9
44.9
33.0
24.0
132
86
B
379.0
915.3
1160.0
105.3
254.3
322.2
38.0
27.0
20.2
110
83
C
350.0
843.3
990.0
97.2
234.3
275.0
31.8
20.0
16.1
75
77.5
250-390
400.0
1030.5
1400.0
111.1
286.3
388.9
50.0
37.0
25.6
1480
132
87
4.0
665
A
390.0
958.3
1290.0
108.3
266.2
358.3
44.0
32.0
22.0
110
86
B
3 75.0
880.3
1170.0
1 04.2
244.5
325.0
38.0
27.0
2 1.8
110
84
C
350.0
819.6
1030.0
97.2
227.7
286.1
32.0
22.0
16.0
75
82
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
250-470(I)
420.0
1174.5
1608.0
116.7
326.3
447
82.8
66.0
50.0
1480
280
87
3.3
830
A
400.0
1072.2
1450.0
111.1
297.8
402.8
69.0
55.0
4 1.6
220
85
B
370.0
975.2
1250.0
102.8
270.9
347.2
58.0
45.5
36.0
20
83
C
330.0
903.3
1090.0
91.7
250.9
302.8
49.6
37.5
31.2
160
80
250-470
400.0
1081.0
1450.0
111.1
300.3
402.8
75.0
54.5
38.0
1480
220
84
3.5
830
A
370.0
1003.9
1300.0
1 02.8
278.9
361.1
64.0
47.0
33.5
220
82.5
B
350.0
911.0
1170.0
97.2
253.0
325.0
55.0
40.5
30.0
160
80.5
C
340.0
830.0
1020.0
94.4
230.6
283.3
46.0
34.5
26.3
110
78.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
250-610(I)
800.0
1234.0
1640.0
222.2
345.3
455.6
131.0
116.0
98.0
1480
560
84
3.8
1215
A
750.0
1154.1
1600.0
208.3
320.6
444.4
115.0
110.0
79.0
450
83.5
B
700.0
1051.4
1480.0
194.4
291.0
411.1
95.0
83.0
63.0
315
83
C
650.0
970.0
1360.0
180.6
269.4
377.8
78.0
66.0
50.0
250
82.5
250-610
400.0
1045.0
1415.0
111.1
290.3
393.1
126.0
104.0
81.5
1480
400
83
3.1
1215
A
390.0
972.1
1360.0
108.3
270.0
377.8
110.0
90.0
70.0
315
82.5
B
380.0
884.5
1240.0
105.6
245.7
344.4
91.0
74.5
58.0
250
81.5
C
335.0
806.9
1120.0
101.4
224.1
311.1
75.0
62.0
49.5
200
80.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
300-330(I)
500.0
1099.0
1475.0
138.9
305.3
409.7
36.0
24.5
17.0
1480
110
86
4.6
630
A
480.0
1020.0
1425.0
133.3
283.3
395.8
31.8
19.8
12.1
90
84.5
B
460.0
970.0
1290.0
127.8
269.4
358.3
26.5
15.5
9.0
75
82
C
440.0
920.0
1170.0
122.2
255.6
325.0
22.3
11.5
7.5
45
80
300-330
400.0
940.0
1260.0
111.1
261.1
350.0
32.1
23.0
15.0
1480
90
85
3.6
630
A
390.0
876.6
1200.0
108.3
243.5
333.0
27.9
20.0
12.0
75
84
B
370.0
801.0
1080.0
102.8
222.5
300.0
24.1
16.7
11.0
55
81
C
350.0
705.0
950.0
97.2
195.8
263.9
20.5
1 3.7
9.0
37
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
300-450(I)
700.0
1678.5
2380.0
194.4
466.3
66 1.1
67.5
53.0
37.0
1480
215
88
5.2
905
A
660.0
1576.8
2100.0
183.3
438.0
583.3
59.2
45.0
32.0
280
86.5
B
620.0
147 6.0
1800.0
172.2
410.0
500.0
50.0
36.5
27.5
200
84
C
600.0
1360.0
1450.0
166.7
378.0
402.8
41.0
27.5
24.5
160
79
300-450
600.0
1620.0
2240.0
166.7
450.0
622.2
68.0
51.5
32.5
1480
315
87.5
5.3
905
A
580.0
1519.2
2040.0
161.1
422.0
566.7
60.0
45.0
29.4
250
86.5
B
560.0
1422.0
1860.0
155.6
395.0
516.7
51.0
37.5
26.2
200
84
C
540.0
1332.0
1620.0
150.0
370.0
450.0
41.9
30.5
23.5
160
81.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
300-550(I)
700.0
1750.0
2350.0
194.4
486.1
652.8
115.0
94.0
76.0
1480
630
86
4.2
1425
A
680.0
1645.2
2170.0
188.9
457.0
602.8
92.0
76.0
61.5
450
85.5
B
650.0
1573.2
2130.0
180.6
437.0
591.7
77.5
62.0
47.0
355
85
C
620.0
1515.6
1980.0
172.2
421.0
550.0
65.0
50.0
37.5
280
83.5
300-550
600.0
1550.0
2130.0
166.7
430.5
591.7
102.0
80.0
60.0
1480
450
84.5
3.9
1425
A
590.0
1447.2
1980.0
163.9
402.0
550.0
86.4
67.0
50.5
355
83.5
B
580.0
1360.8
1820.0
161.1
378.0
505.6
73.0
57.0
44.0
280
83
C
570.0
1281.6
1600.0
158.3
356.0
461.1
61.0
47.5
37.2
250
82
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
300-710(I)
900.0
1836.0
2100.0
250.0
510.0
583.3
183.0
160.0
150.6
1480
1120
85
3.5
1690
A
960.0
1735.2
2030.0
266.7
482.0
563.9
160.0
136.0
126.0
900
84.6
B
800.0
1623.6
1880.0
222.2
451.0
522.2
135.0
112.0
104.0
630
84.3
C
700.0
1537.2
1600.0
194.4
427.0
444.4
110.5
91.0
77.0
560
84
300-710
600.0
1690.0
2160.0
166.7
469.4
600.0
174.0
139.0
118.0
1480
900
83.5
4
1690
A
580.0
1573.0
2000.0
161.1
431.0
555.6
150.0
119.0
100.0
710
83
B
540.0
1450.8
1800.0
150.0
403.0
505.6
124.0
99.0
82.4
560
82.5
C
510.0
1342.8
1650.0
141.7
373.0
458.3
103.0
81.0
70.0
400
82
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
350-380(I)
600.0
1733.0
2280.0
166.7
481.4
633.3
45.5
32.0
20.5
1480
200
86.5
6.2
865
A
580.0
1692.0
2160.0
161.1
470.0
600.0
40.0
26.5
17.0
160
85
B
560.0
1641.6
2080.0
155.5
456.0
577.8
34.0
21.0
12.8
132
83
C
540.0
1602.0
1900.0
150.0
445.0
527.8
27.9
15.0
9.0
110
80.5
350-380
500.0
1424.0
1940.0
38.9
395.6
538.9
42.5
31.0
21.8
1480
160
85.5
5
865
A
460.0
1335.6
1800.0
127.8
371.0
500.0
37.9
26.3
17.0
132
84
B
430.0
1270.8
1610.0
119.4
353.0
447.2
32.5
22.5
15.5
110
82
C
410.0
1188.0
1400.0
113.9
330.0
388.9
27.5
17.8
17.1
90
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
350-440(I)
1000.0
2745.0
3500.0
277.8
762.5
972.2
59.0
43.5
31.0
1480
450
87.5
8.5
1285
A
950.0
2635.2
3450.0
263.9
732.0
958.3
50.5
35.0
22.0
355
85.5
B
900.0
2563.2
3250.0
250.0
712.0
902.8
43.0
27.5
18.5
280
84
C
890.0
2484.0
3200.0
147.2
690.0
888.9
36.0
21.5
13.0
220
81
350-440
750.0
2235.0
3000.0
208.3
620.8
833.8
59.0
42.5
30.0
1480
355
86.5
6.5
1285
A
700.0
2088.0
2750.0
194.4
580.0
763.9
51.5
36.0
25.0
280
84.5
B
680.0
1987.2
2400.0
188.9
552.0
666.7
45.0
30.0
23.0
250
82
C
650.0
1847.6
2010.0
180.6
516.0
558.3
38.0
25.0
22.0
200
78.5
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
350-520(I)
1350.0
2610.0
3700.0
375.0
725.0
1027.8
94.0
70.0
48.3
1480
630
88.5
6.7
1395
A
1100.0
2430.0
3500.0
305.6
675.0
972.2
82.0
60.0
42.0
560
87
B
750.0
2232.0
2850.0
208.3
620.0
79 1.7
73.0
50.0
37.0
400
86
C
505
2070
2350
140.3
575
652.8
61
38
33.2
315
79
350-520
850
2450
3350
236.1
680.6
930.6
92
67
47.5
148
630
88
7
1395
A
800
2268
3200
222.2
630
888.9
81.5
59.5
38
500
87
B
750
2088
2850
208.3
580
791.7
81.4
50
34.5
400
85
C
700
1944
2500
194.4
540
694.4
60
41.5
30.5
315
83
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
350-640
1470
2160
2800
408.03
600
777.8
138.5
126.2
107
1480
1000
85
6.9
1500
A
1290
2000
2600
358.3
556
722
128
116
98.3
900
84
B
1185
1920
2500
329.2
533.3
694.4
117.8
106
88.5
800
82
C
1110
1830
2380
308.3
508.3
66 1
107.8
95.6
78
710
80
D
1050
1695
2200
291.7
470.8
611
93.8
83
68
560
78
400-550(I)
1535
1635
3420
426.3
731.9
950
98
86
70.8
1480
800
85
7
1600
A
1470
2520
3270
408.3
700
908.3
91
79
63.9
710
83
B
1420
2418
3140
394
671.6
872
82.6
71.8
56.8
630
81
C
1400
2311.5
3015
388.9
642
837.5
76
64
49
630
79
D
1380
2235.6
2900
383.3
62 1
805.6
69
57.8
43.8
560
77
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
400-550
1320
2190
2850
366.7
608.3
79 1.7
77
63.8
47.2
1480
500
86
5.9
1600
A
1280
2045.5
2660
355.6
568.2
738.9
69.8
57.8
43.8
450
84
B
1230
1882
2450
341.7
522.7
680.6
61.2
51.2
39
400
82
C
1211
1767.6
2300
336.4
49 1
638.9
53.2
45
34
315
80
400-600
1571
2502
3250
436.4
695
902.8
101.2
90.2
68
1480
800
86
6.9
2100
A
1508
2422
3100
41 9
627.7
861
93.2
81.8
63
710
84
B
1500
2354
3000
416.7
654
833.3
86
74
54
630
82
C
1470
2225.5
2750
410
618.2
764
78.8
68
51.8
560
80
D
1505
2127.6
2500
418.2
59 1
722
69
59.8
47
500
78
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
400-600(I)
1919
3176.5
4100
533
882.4
1139
129.7
113
93.6
1480
1250
86
7.5
2100
A
1780
3007
3910
494.4
835.3
1086
119
103.6
83.6
1120
84
B
1740
2922.4
3800
483.3
811.8
1055.6
109.2
93
70.8
1000
82
C
1600
2732
3550
444.4
758.8
986
99.8
83.7
63
900
80
D
1530
2641.6
3380
425
706
938.9
90
74
57
800
78
500-520(I)
1900
3217.5
3960
527.8
893.8
1100
33.2
25
17.7
980
280
87
4.8
1528
A
1830
3088
3800
508.3
857.8
1055.6
30.5
23
16.3
250
86
B
1750
2964.5
3650
486
823.3
1013.9
28.6
21
15.3
220
84
C
1680
2846
3485
466.7
790.6
968
26
18.4
13
200
82
D
1600
2732
3180
444.4
758.9
883.3
23.8
16.3
11.75
180
80
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
500-520
1480
2777
3600
411
771.4
1000
31.3
22.5
14
980
180
80
4.3
1528
A
1400
2638
3420
388.9
732.8
950
27.8
19.5
12.2
220
86
B
1250
2484
3000
347.2
690
833.3
22
15.6
11.2
200
84
C
1160
2178.5
2790
322.2
605.1
775
18.5
13.8
9.2
160
81
500-650(I)
1850
3510
4500
513.9
975
1250
52.5
41.5
31
980
132
78
5.7
2301
A
1800
3352.5
4230
500
931
1175
49.8
38.7
28.5
500
88.5
B
1740
3172.5
4000
483.3
88 1
1111.7
46.4
36
26.5
450
86
C
1660
3015
3830
461.1
837.5
1064
42.2
33.2
25
400
84
D
1560
2767.5
3600
433.3
768.8
1000
37.6
29.7
21.8
355
82
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
500-650
1820
2992
3890
505.6
831.3
1080
41.8
33.7
23.2
980
315
80
4.8
2301
A
1730
2835
3695
480.6
787.5
1026
37.8
30.2
21
355
87
B
1635
2722.5
3490
454
756.3
969.4
34
27.7
19
315
86
C
1535
2642.5
3280
426.4
706
911
29
24
17
250
78
500-710(I)
2300
3852
5040
638.9
1070
1400
73.1
64.4
54
980
900
88.5
5.8
2967
A
2200
3672
4840
611.1
1020
1344.4
67.2
592
47.1
800
87
B
2100
3470.4
4320
583.3
964
1200
60.3
53
43
710
85
C
2000
3204
3960
555.6
890
1100
56.4
47.7
39
560
83
D
1920
3024
3550
533.3
840
986.1
50
42
34.2
500
81
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
500-710
1800
3006
3900
500
835
1083
60
49
35.6
980
560
87
5.5
2967
A
1710
2812.5
3700
475
78 1.3
1027.8
53.6
44.2
31.2
450
85
B
1615
2632.5
3375
448.6
731.3
937.5
47.7
39.3
29
400
83
C
1518
2407.5
3175
421.7
668.7
882
41.5
34.6
26
355
79
500-800(I)
2590
3996
5190
719.4
1110
1441..7
88.7
80.6
67.9
980
1120
89
6.9
3483
A
2460
3600
4680
683.3
1000
1300
78.4
72.8
61.8
900
87
B
2340
3240
4100
650
890
1138.9
69.8
65.3
57
800
85
C
2200
2880
3600
611.1
800
1000
61
58
52
630
83
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
500-800
2385
3474
4600
622.5
965
1277.8
70.7
62.5
47.5
980
800
88
5.2
3483
A
2265
3330
4370
629
925
1213.9
63.1
55.8
44
710
86
B
2150
3150
4150
597.2
87 5
1152.8
56.2
49.6
39.2
560
84
C
2050
2970
3940
569.7
825
1094
48
43.6
35.8

500
80
500-860(I)
2520
4183.2
5440
700
1162
1511
124
111.2
96.2
980
1600
89
6.9
4659
A
2380
3996
5140
661.1
1110
1428
112.4
100.7
86
1400
87
B
2250
3780
4870
625
1050
1352.8
102.4
90.4
77.5
1250
83
C
2115
3528
4320
587.5
980
1300
90.4
80.4
70.6
1120
80
Pump model
Traffic Q
Head (m)
Rotational speed (rpm)
Power (kW)
Efficiency (%)
Required cavitation allowance (m)
Pump weight (kg)
(m3/h)
(L/s)
500-860
2400
3600
4680
666.7
1000
1300
99.6
90
73
980
1120
88.5
5.5
4659
A
2300
3492
4500
638.9
970
1250
93.4
82.9
68
1000
86
B
2200
3384
4300
611.1
940.3
1194.4
87.2
77.2
63.8
900
84
C
2090
3204
4085
580.6
890
1134.7
81
71.5
59
800
82
D
1985
3081.6
3850
551.4
856
1069
75
65.8
55.6
800
810

little knowledge
Does the production of the pump add a cone tube to increase the outlet pipeline?
We know that there is a great similarity between power transmission and hydraulic transmission through pumps. In power transmission, the longer the line and the thinner the wire (the smaller the diameter), the greater the line loss and voltage rise. In hydraulic transportation, the longer the pipeline and the smaller the diameter, the greater the pipeline loss and the greater the pressure drop. So, in order to reduce pipeline losses, should we simply increase the pipeline? This is an economic issue, just like whether to thicken transmission lines. Expanding the pipeline can reduce line loss, thereby saving electricity, and even reduce the head of the water pump and the accompanying motor, saving equipment investment. However, on the other hand, it also increases pipeline investment (including pipelines, various valves, and maintenance costs). Therefore, a comprehensive economic decision should be made based on the length of the passenger route and the running time of the water pump. Generally speaking, for long-distance transportation, there is no need to increase (or decrease) the outlet pipeline, and pressure or relay transportation should be adopted.
The sequence of start-up and shutdown operations for water pumps
When starting up for the first time, pumps with couplings can remove the connecting parts and jog the motor to test the direction of rotation. Alternatively, without disassembling the coupling, test the motor rotation when there is water in the pump. If the electric motor is directly connected to the pump, it is also necessary to ensure that the pump can only be tested for steering at times. It is strictly prohibited to directly start (pump) and test the direction of the electric motor when there is no water in the pump.
Before starting up, the pump must be filled with water. When starting up, fully operate the inlet valve, close the outlet valve, start the motor, and slowly open the outlet valve to the required flow or pressure after the motor runs at normal speed. Attention: Do not let the pump run for a long time without the outlet valve working and within the small flow rate specified by the pump.
When the pump is running, it is forbidden to use the inlet valve to adjust the flow rate, and the inlet valve must be kept at a large opening.
When shutting down, first close the outlet valve, then turn off the motor. If the inlet valve is installed, it should be closed after the motor stops to ensure that there is water intake in the pump (if there is a one-way valve, it can be left open). During the antifreeze period in the north (or when the ambient temperature is below the freezing temperature of the liquid), the water stored in the pump must be drained to prevent freezing and cracking of the water pump. Long term disuse requires draining all water from the pump, disassembling the pump if necessary, cleaning parts for rust prevention, and storing them properly.

Installation form

A、 80-220 to 350-640 (with common base) pumps and motors are installed on the base
SOW型蜗壳式双吸清水管道泵安装形式

B、 400-500 to 500-860 (without base) pumps and motors are installed on foundations (without base)
SOW型蜗壳式双吸清水管道泵安装形式

Connection flange size

SOW型蜗壳式双吸清水管道泵法兰尺寸
Pump model
Imported diameter
Imported flange size
Export diameter
Export flange size
DN1
D1
D2
n-d
DN2
D3
D4
n-d
80-220
125
210
250
8-17.5
80
160
200
8-17.5
80-280
80-350
100-260
150
240
285
8-22
100
180
220
8-17.5
100-320
100-400
125-240
200
295
340
12-22
125
210
250
8-17.5
125-300
125-380
125-480
150-280
200
295
340
12-22
150
240
285
8-22
150-350
150-450
150-570
200-340
250
355
405
12-26
200
295
340
12-22
200-410
200-530
200-660
310
360
12-26
250-390
300
410
460
12-26
250
355
405
12-26
250-470
250-610
300-330
350
470
520
16-26
300
410
460
12-26
300-450
400
525
580
16-30
300-550
300-710
430
485
16-30
350-380
400
525
580
16-30
350
470
520
16-26
350-440
350-520
350-640
400-550
500
650
715
20-33
400
525
580
16-30
400-600
500-520
600
770
840
20-36
500
650
715
20-33
500-650
500-710
500-800
500-860


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