DL/DLR Vertical Multistage Centrifugal Pump High Efficiency

DL/DLR Vertical Multistage Centrifugal Pump High Efficiency

Model Code Explanation Product Introduction DL Vertical Multistage Low-Speed Clean Water Pump (low speed n=1450 r/mi...

Product Description

Model Code Explanation

DLDLR Vertical Multistage Centrifugal Pump type

Product Introduction

DL Vertical Multistage Low-Speed Clean Water Pump (low speed n=1450 r/min) is a newly developed product based on actual high-rise building water supply requirements and in accordance with the national fire protection standard GB6245-2006 “Fire Pump Performance Requirements and Test Methods.”
It is suitable for conveying media that are free of hard particles and similar to clean water in physical and chemical properties.
The flow range is 5–360 m³/h, head range is 22–300 m, power range is 1.5–220 kW, and diameter range is φ40–φ200 mm.
A single pump outlet can be configured with 1–5 discharge ports.

Product Features

DL Vertical Multistage Low-Speed Clean Water Pump adopts an advanced hydraulic model, featuring high efficiency, smooth performance curves and a wide operating range. It meets the relevant requirements of the Fire Protection Bureau and satisfies various user demands.
The DL pump adopts a vertical sectional structure, offering stable operation, low noise, long service life, small footprint, and convenient installation and maintenance.

Product Applications

DL Vertical Multistage Low-Speed Clean Water Pump is mainly used for domestic water supply in high-rise buildings, fire-fighting constant-pressure water supply, automatic sprinkler systems, and automatic water curtain systems.
It can also be applied in industrial and mining drainage, long-distance water transfer, equipment supporting water supply, process water supply and other applications.
The medium temperature for DL pumps should not exceed 80°C; for DLR type, the medium temperature should not exceed 120°C.

Operating Conditions

1. The pumped medium should be similar to water, with a kinematic viscosity <150 mm²/s, free of solid particles and non-corrosive.
2. The installation altitude for the DL pump should be <1000 m. If exceeded, please specify when ordering so we can provide a more reliable configuration.
3. Medium temperature: -15°C to 120°C.
4. System working pressure ≤ 2.5 MPa.
5. Ambient temperature ≤ 40°C, relative humidity ≤ 95%.

Structure Description

The DL Vertical Multistage Low-Speed Clean Water Pump consists of the motor and the pump. The motor is a Y-series three-phase asynchronous motor. The pump and motor are connected by a coupling with a rigid connection, requiring no alignment during installation.
The pump consists of stationary and rotating components. The stationary components include the suction section, intermediate section, diffuser, discharge section, stuffing-box body and other parts. To prevent wear, the stator is equipped with wear rings and balance sleeves, which can be replaced when worn.
The rotating components include the shaft, impellers, and balance drum. The lower end of the rotor is supported by a water-lubricated bearing, and the upper end by an angular contact ball bearing. Most of the axial force is borne by the balance drum, with the remaining small residual axial force borne by the angular contact ball bearing.
The joint surfaces of the suction and discharge sections are sealed with gaskets through tightening bolts. The shaft seal may be packing seal or mechanical seal, depending on user requirements.
The rotation direction of the DL pump is counterclockwise when viewed from the drive end.

1. Compact structure, small size, attractive appearance, small footprint, reducing building cost.
2. The pump inlet and outlet are on the same centerline, simplifying pipeline installation.
3. According to installation requirements, the inlet and outlet can be assembled in 90°, 180°, or 270° orientations.
4. According to application needs, the pump outlet can be configured with 1–5 discharge ports to achieve different heads from the same pump.

Structure Diagram

DLDLR Vertical Multistage Centrifugal Pump type jiegoutu

No.
Name
Material / Model
No.
Name
Material / Model
1
Motor
Y Series (V5) 4-Pole
12
Discharge Section
HT200
2
Coupling
HT200
13
Balance Sleeve
HT200
3
Elastic Block
Rubber
14
Balance Drum
HT200
4
Bearing Cover
HT200
15
Final Stage Diffuser
HT200
5
Bearing Lock Nut
45
16
Intermediate Section
HT200
6
Bearing Housing
HT200
17
Diffuser
HT200
7
Bearing
Series 180
18
Impeller
HT200
8
Water Deflector Sleeve
45
19
Suction Section
HT200
9
Asbestos Gland
HT200
20
Lower Shaft Sleeve
45
10
Asbestos Packing
Asbestos
21
Lower Bearing
Copper Alloy
11
Stuffing Box Body
HT200
22
Shaft
45, 2Cr13
  Note:
1. This pump model can be customized as a hot-water type upon request.
2. The asbestos packing can be replaced with a mechanical seal.
3. Please specify these requirements when placing an order; pricing will be discussed separately.

Performance Parameters

Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
40DL6.2-11.2*2
2
1450
40
3.19
6.2
23.6
1.5
152
40DL6.2-11.2*3
3
1450
40
3.19
6.2
35.4
2.2
169
40DL6.2-11.2*4
4
1450
40
3.19
6.2
47.2
3
186
40DL6.2-11.2*5
5
1450
40
3.19
6.2
59
4
203
40DL6.2-11.2*6
6
1450
40
3.19
6.2
70.8
4
220
40DL6.2-11.2*7
7
1450
40
3.19
6.2
82.6
5.5
237
40DL6.2-11.2*8
8
1450
40
3.19
6.2
94.4
5.5
254
40DL6.2-11.2*9
9
1450
40
3.19
6.2
106.2
7.5
271
40DL6.2-11.2*10
10
1450
40
3.19
6.2
118
7.5
/
40DL6.2-11.2*11
11
1450
40
3.19
6.2
129.8
7.5
/
40DL6.2-11.2*12
12
1450
40
3.19
6.2
141.6
11
/
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
50DL12.6-12.2*2
2
1450
54
2.66
12.6
24.4
3
15.3
50DL12.6-12.2*3
3
1450
54
2.66
12.6
36.6
3
18
50DL12.6-12.2*4
4
1450
54
2.66
12.6
48.8
4
23.1
50DL12.6-12.2*5
5
1450
54
2.66
12.6
61
5.5
33
50DL12.6-12.2*6
6
1450
54
2.66
12.6
73.2
5.5
24
50DL12.6-12.2*7
7
1450
54
2.66
12.6
85.4
7.5
15
50DL12.6-12.2*8
8
1450
54
2.66
12.6
97.6
7.5
18
50DL12.6-12.2*9
9
1450
54
2.66
12.6
109.8
11
22
50DL12.6-12.2*10
10
1450
54
2.66
12.6
122
11
/
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
65DL30-16*2
2
1450
62
2.82
30
32
5.5
349
65DL30-16*3
3
1450
62
2.82
30
48
7.5
390
65DL30-16*4
4
1450
62
2.82
30
64
11
460
65DL30-16*5
5
1450
62
2.82
30
80
15
509
65DL30-16*6
6
1450
62
2.82
30
96
15
537
65DL30-16*7
7
1450
62
2.82
30
112
18.5
603
65DL30-16*8
8
1450
62
2.82
30
128
22
639
65DL30-16*9
9
1450
62
2.82
30
144
22
667
65DL30-16*10
10
1450
62
2.82
30
160
30
720
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
80DL50-20*2
2
1450
70
2.5
50
40
11
461
80DL50-20*3
3
1450
70
2.5
50
60
15
522
80DL50-20*4
4
1450
70
2.5
50
80
22
608
80DL50-20*5
5
1450
70
2.5
50
100
30
728
80DL50-20*6
6
1450
70
2.5
50
120
30
768
80DL50-20*7
7
1450
70
2.5
50
140
37
822
80DL50-20*8
8
1450
70
2.5
50
160
45
898
80DL50-20*9
9
1450
70
2.5
50
180
45
938
80DL50-20*10
10
1450
70
2.5
50
200
55
/
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
100DL72-20*2
2
1450
72
2.8
72
40
15
521
100DL72-20*3
3
1450
72
2.8
72
60
18.5
599
100DL72-20*4
4
1450
72
2.8
72
80
30
727
100DL72-20*5
5
1450
72
2.8
72
100
37
781
100DL72-20*6
6
1450
72
2.8
72
120
37
821
100DL72-20*7
7
1450
72
2.8
72
140
45
897
100DL72-20*8
8
1450
72
2.8
72
160
55
1044
100DL72-20*9
9
1450
72
2.8
72
180
55
1084
100DL72-20*10
10
1450
72
2.8
72
200
75
/
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
100DL100-20*2
2
1450
72
3.5
100
40
18.5
554
100DL100-20*3
3
1450
72
3.5
100
60
30
687
100DL100-20*4
4
1450
72
3.5
100
80
37
746
100DL100-20*5
5
1450
72
3.5
100
100
45
827
100DL100-20*6
6
1450
72
3.5
100
120
55
979
100DL100-20*7
7
1450
72
3.5
100
140
75
1159
100DL100-20*8
8
1450
72
3.5
100
160
75
1204
100DL100-20*9
9
1450
72
3.5
100
180
90
1354
100DL100-20*10
10
1450
72
3.5
100
200
90
/
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
150DL150-20*2
2
1450
80
2.8
150
40
30
569
150DL150-20*3
3
1450
80
2.8
150
60
37
707
150DL150-20*4
4
1450
80
2.8
150
80
45
771
150DL150-20*5
5
1450
80
2.8
150
100
55
857
150DL150-20*6
6
1450
80
2.8
150
120
75
1060
150DL150-20*7
7
1450
80
2.8
150
140
75
1245
150DL150-20*8
8
1450
80
2.8
150
160
90
1295
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
150DL160-25*2
2
1450
76
3.5
160
50
37
873
150DL160-25*3
3
1450
76
3.5
160
75
55
1086
150DL160-25*4
4
1450
76
3.5
160
100
75
1291
150DL160-25*5
5
1450
76
3.5
160
125
90
1466
150DL160-25*6
6
1450
76
3.5
160
150
110
1633
150DL160-25*7
7
1450
76
3.5
160
175
132
1803
150DL160-25*8
8
1450
76
3.5
160
200
132
1873
150DL160-25*9
9
1450
76
3.5
160
225
160
2003
Model
Stages
Speed
Efficiency
NPSH Required
Flow Rate
Head
Power
Weight
r/min
%
m
m³/h
m
kW
Kg
200DL300-20*2
2
1450
79
5
300
40
55
983
200DL300-20*3
3
1450
79
5
300
60
75
1196
200DL300-20*4
4
1450
79
5
300
80
110
1845
200DL300-20*5
5
1450
79
5
300
100
132
1975
200DL300-20*6
6
1450
79
5
300
120
160
2120
200DL288-30*2
2
1450
77.9
3.7
288
60
75
/
200DL288-30*3
3
1450
77.9
3.7
288
90
110
/
200DL288-30*4
4
1450
77.9
3.7
288
120
132
/
200DL288-30*5
5
1450
77.9
3.7
288
150
160
/
200DL288-30*6
6
1450
77.9
3.7
288
180
200
/

Installation Dimensions & Outline Diagram
DLDLR Vertical Multistage Centrifugal Pump type anzhuangtu

Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
40DL6.2-11.2
2
225
938
112
170
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
3
225
1043
112
230
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
4
225
1103
112
290
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
5
225
1183
112
350
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
6
225
1243
112
410
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
7
225
1378
112
470
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
8
225
1438
112
530
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
9
225
1538
112
590
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
10
225
1598
112
650
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
11
225
1658
112
710
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
40DL6.2-11.2
12
225
1803
112
770
350
300
4-φ18
150
40
110
4-φ18
150
40
110
4-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
50DL12.6-12.2
2
220
1084
104
189
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
3
220
1152
104
257
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
4
220
1240
104
325
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
5
220
1383
104
393
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
6
220
1451
104
461
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
7
220
1559
104
529
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
8
220
1629
104
597
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
9
220
1780
104
665
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
50DL12.6-12.2
10
220
1848
104
733
360
305
4-φ18
165
50
125
4-φ18
150
40
110
4-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
65DL30-16
2
260
1306
170
199
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
3
260
1426
170
279
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
4
260
1591
170
359
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
5
260
1716
170
439
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
6
260
1796
170
519
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
7
260
1901
170
599
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
8
260
2021
170
679
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
9
260
2101
170
759
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
65DL30-16
10
260
2246
170
839
430
370
4-φ24
185
65
145
4-φ18
165
50
125
4-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
80DL50-20
2
280
1515
120
277
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
3
280
1649
120
366
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
4
280
1865
120
455
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
5
280
2030
120
544
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
6
280
2120
120
633
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
7
280
2270
120
722
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
8
280
2385
120
811
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
9
280
2475
120
900
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
80DL50-20
10
280
2665
120
989
450
400
4-φ24
200
80
160
8-φ18
185
65
145
4-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
100DL72-20
2
285
1616
180
293
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
3
285
1784
180
396
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
4
285
1932
180
499
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
5
285
2060
180
602
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
6
285
2248
180
705
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
7
285
2421
180
808
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
8
285
2524
180
911
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
9
285
2677
180
1014
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL72-20
10
285
2780
180
1117
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
100DL100-20
2
285
1493
180
293
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
3
285
1655
180
396
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
4
285
1777
180
499
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
5
285
1807
180
602
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
6
285
1984
180
705
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
7
285
2111
180
808
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
8
285
2213
180
911
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
9
285
2415
180
1014
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
100DL100-20
10
285
2517
180
1117
470
405
4-φ24
220
100
180
8-φ18
200
80
160
8-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
150DL150-20
2
310
1680
150
315
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
3
310
1840
150
430
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
4
310
2020
150
545
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
5
310
2260
150
660
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
6
310
2445
150
775
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
7
310
2610
150
890
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
8
310
2725
150
1005
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL150-20
9
310
3240
150
1120
470
410
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
150DL160-25
2
345
1895
155
372
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
3
345
2135
155
504
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
4
345
2335
155
636
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
5
345
2515
155
768
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
6
345
2800
155
900
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
7
345
2975
155
1032
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
8
345
3110
155
1164
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
150DL160-25
9
345
3240
155
1260
550
480
4-φ24
285
150
240
8-φ23
245
125
210
8-φ18
Model
Stages
L
H
H1
H2
B
b
n-φd
Inlet Flange
Outlet Flange
Dj
Djn
Dj2
n-dj
Dc
Dcn
Dc2
n-φdc
200DL300-20
2
380
2010
182
600
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL300-20
3
380
2320
182
760
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL300-20
4
380
2660
182
905
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL300-20
5
380
2860
182
1050
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL300-20
6
380
3010
182
1200
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL288-30
2
380
2185
182
600
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL288-30
3
380
2355
182
760
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL288-30
4
380
2795
182
905
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL288-30
5
380
2945
182
1050
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23
200DL288-30
6
380
3095
182
1200
600
550
4-φ24
340
200
295
12-φ23
285
150
240
8-φ23

Installation Instructions

Rigid Connection
DLDLR Vertical Multistage Centrifugal Pump type anzhuang1
1
Ball Valve
2
Flexible Joint
3
Pressure Gauge
4
Vacuum Gauge
5
Gate Valve
6
Elbow
7
Pressure Pipe
8
Concrete Base
Flexible Connection
DLDLR Vertical Multistage Centrifugal Pump type anzhuang2
1
Ball Valve
2
Flexible Joint
3
Pressure Pipe
4
Gate Valve
5
Elbow
6
Pump
7
Mounting Plate
8
JGD Shock Absorber
9
Concrete Base


Accessories and Installation Dimensions

Mounting Plate Dimensions
DLDLR Vertical Multistage Centrifugal Pump type anzhuang3
Rigid Concrete Base Dimensions
DLDLR Vertical Multistage Centrifugal Pump type anzhuang4
Model
Mounting Plate Dimensions
Rigid Concrete Base Dimensions
A×A
B×B
C×C
H
d1
d2
D×D
E×E
F×F
H
d
h
40DL
300
540
600
80
φ14 or φ18
φ18
300
500
560
250
60
200
50DL
305
540
600
80
φ14 or φ18
φ18
305
500
560
250
60
200
65DL
370
740
800
80
φ14 or φ18
φ24
370
500
560
250
80
250
80DL
400
740
800
80
φ18 or φ22
φ24
400
600
660
350
80
250
100DL
410
740
800
80
φ18 or φ22
φ24
410
600
660
350
80
250
150DL
550
840
900
80
φ18 or φ22
φ24
550
700
760
350
80
250
200DL
600
840
900
80
φ22
φ24
600
800
880
350
80
250

 

OEM & Custom Solutions

We offer OEM/ODM customization, including cast iron or stainless steel versions, special voltage (220V/415V/460V), high-temperature configurations, and control cabinet integration. Each pump is tested under ISO and CE standards to ensure performance and reliability for international markets.

FAQs for Oversea Buyers

Q: What is the main difference between DL and DLR models?
A: DL is for normal-temperature clean water (≤80°C), while DLR is for hot water systems (≤120°C).

Q: What’s the maximum pressure capacity?
A: The pump can withstand up to 2.5 MPa working pressure.

Q: Is this pump suitable for high-rise buildings?
A: Yes, it’s specifically designed for pressurized water supply and circulation in tall buildings.

Q: Can it be used for slightly corrosive liquids?
A: Yes, with stainless-steel wetted parts, it can handle mildly corrosive fluids.

Q: How often should maintenance be done?
A: Lubricate bearings every 500 hours and inspect seals regularly.

Q: Do you provide OEM labeling and packaging?
A: Yes, OEM branding, packaging, and voltage customization are available for export clients.

Q: What are the main export markets?
A: Our DL/DLR pumps are widely exported to Southeast Asia, the Middle East, and South America for municipal, industrial, and agricultural systems.