Product Overview
The DL Vertical Multistage Clean Water Pump (Low-Speed Model, n = 1450 r/min) is a vertical multistage pump unit developed for continuous operation in high-rise building water supply and fire protection systems. Featuring a multistage hydraulic configuration with impellers arranged in series, it delivers high head output and is well-suited for applications requiring high operational stability, system reliability, and efficient pump room space utilization.
This pump series is designed to convey non-corrosive liquids with physical and chemical properties similar to clean water, free of hard solid particles, and capable of supporting long-term reliable operation in building water and fire systems.
Model Designation
Key Features
-
Utilizes a proven and reliable multistage hydraulic model, delivering high efficiency, stable performance curves, and a broad operating range.
-
Vertical sectional structure offers compact footprint, smooth operation, low noise, and ease of maintenance.
-
Complies with diverse operating conditions and stringent fire system reliability requirements.
-
Suction and discharge ports are aligned on the same centerline, simplifying piping layout and connection.
Engineering Summary
The DL Vertical Multistage Clean Water Pump (Low-Speed Model, n = 1450 r/min) is developed based on the actual operating requirements of high-rise building water supply systems. Its design and performance fully comply with GB 6245-2006 “Performance Requirements and Test Methods for Fire Pumps.”
The pump is suitable for conveying non-corrosive liquids with properties similar to clean water and free from solid particles.
Main technical parameters:
-
Flow range: 5–360 m³/h
-
Head range: 22–300 m
-
Motor power: 1.5–220 kW
-
Nominal suction/discharge diameter: φ40–200 mm
-
Number of discharge outlets per pump: 1–5
Typical Applications
-
Domestic water supply systems in high-rise buildings
-
Constant pressure fire protection and automatic sprinkler systems
-
Water curtain and industrial distribution systems
-
Industrial and mining water supply and drainage
-
Long-distance water transfer and supporting equipment systems
-
Process water and hot water circulation applications
For DL models, the maximum fluid temperature is 80°C; for DLR models, it can reach up to 120°C.
System & Operation
Components & Supply
-
Motor and pump are connected via a rigid coupling; no on-site alignment is required during installation.
-
The pump casing is composed of suction casing, intermediate casing, diffuser assembly, discharge casing, and stuffing box, offering excellent pressure resistance.
-
Wear rings and balance sleeves are mounted on the support structure to reduce operational wear; all are replaceable wear parts.
-
The rotor assembly includes the pump shaft, impellers, and balance drum, supported by a water-lubricated bearing at the bottom and an angular contact ball bearing at the top.
Technical Specifications
Operating Conditions
-
The conveyed liquid should be non-corrosive and free from solid particles, with properties similar to clean water and kinematic viscosity ≤150 mm²/s.
-
Installation altitude ≤1000 m; for higher elevations, specify when ordering to allow appropriate configuration.
-
Medium temperature range: –15°C to 120°C; maximum system working pressure: ≤2.5 MPa.
-
Ambient temperature ≤40°C; relative humidity ≤95%.
Service Conditions
-
Installation environment should be well-ventilated and free from corrosive gases; indoor installation is preferred.
-
For outdoor installation, protective covers must be used to prevent ingress of rain or debris.
-
The foundation should be stable and vibration-free; resonance should be avoided.
-
Adequate clearance should be maintained around the unit for daily maintenance and inspection.
Protection Functions
-
Motor must be equipped with overload, overheat, and phase-failure protection devices.
-
The system should include check valves, water hammer arrestors, and safety relief valves to prevent backflow and overpressure.
-
Critical systems should be equipped with pressure or flow sensors and alarm functions for enhanced operational safety.
-
The pump must not operate dry or start without liquid; liquid level interlock control is recommended when necessary.
Selection Criteria
-
Select appropriate model and number of stages based on system head and flow rate, ensuring the duty point lies within the high-efficiency range.
-
Choose sealing configuration and material based on fluid temperature and properties.
-
Confirm piping layout and space constraints to determine nozzle orientation and motor size.
-
For continuous-duty systems, consider standby pumps or alternating operation to improve reliability.
-
Prioritize installation and maintenance accessibility, and select standardized parts to reduce long-term operating costs.
Installation & Dimensions
Outline Drawing
Performance Data
|
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 Gland
|
HT200
|
15
|
Final Stage Diffuser
|
HT200
|
|
5
|
Bearing Nut
|
45 Steel
|
16
|
Intermediate Section
|
HT200
|
|
6
|
Bearing Housing
|
HT200
|
17
|
Diffuser
|
HT200
|
|
7
|
Bearing
|
180 Series
|
18
|
Impeller
|
HT200
|
|
8
|
Water-block Sleeve
|
45 Steel
|
19
|
Suction Section
|
HT200
|
|
9
|
Asbestos Gland
|
HT200
|
20
|
Lower Shaft Sleeve
|
45 Steel
|
|
10
|
Asbestos
|
Asbestos
|
21
|
Lower Bearing
|
Copper Alloy
|
|
11
|
Stuffing Box Body
|
HT200
|
22
|
Shaft
|
45 Steel / 2Cr13
|
| Note: 1. This pump type can be customized as a hot water model. 2. The asbestos packing can be replaced with a mechanical seal. 3. Please specify these requirements when ordering; pricing will be adjusted accordingly. |
|||||
Performance Parameters
|
Model
|
Stages
|
Speed
|
Efficiency
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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
|
NPSHr
|
Flow
|
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 Diagram
Performance Data（2）
|
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 Dimensions
|
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||
Installation Diagram（2）
|
|
|||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
OEM & Custom
Chaodun Pump provides OEM and ODM customization for DL and DLR vertical multistage centrifugal pumps, including material options (cast iron, stainless steel), flange standards, and performance adjustments based on customer requirements. Custom labeling and packaging available for global distributors.
FAQs
1. What materials are available for the pump body?
We offer cast iron and stainless-steel options depending on the application.
2. Can this pump handle hot water?
Yes, up to 80°C under standard design or higher with special sealing options.
3. Is OEM or branding customization supported?
Yes, we provide OEM logo, packaging, and color customization for overseas clients.
4. How is the pump shipped?
By sea, air, or express based on quantity and urgency; export wooden crates used for safety.
5. What certifications do your pumps have?
All pumps are ISO9001 certified and tested before delivery.