Qdlf Vertical Stainless Steel Multistage Pump Stainless Steel Vertical Centrifugal Pump
Road Roller, also known as soil compactor, is a kind of road repairing equipment. The road roller belongs to the category of road equipment in Construction Machinery. It is widely used in the compaction of high-grade highways, railways, airport runways, dams, stadiums and other large-scale engineering projects. It can roll sand, semi-cohesive and cohesive soil, Subgrade stabilized soil and asphalt concrete pavement layer. The roller is suitable for various compaction operations by the gravity of the machine itself, so that the layer to be rolled is permanently deformed and compacted. Road rollers are divided into steel wheel type and tire type. Road Roller Road Roller,Double Drum Road Roller,Vibratory Road Roller,Construction Road Roller Zhengzhou Dongfeng Mid-south Enterprise Co., Ltd. , https://www.cn-dfmtruck.com
1. Medium temperature: -15°C~+120°C.
2. Large ambient temperature: +40 °C.
3, the pressure of the environment: 10bar.
4. The pressure on large imports is limited by the pressure of the environment.
5. When the density or viscosity of the transport medium is greater than water, consider using a motor with a higher power.
Vertical stainless steel multistage pump overview
      The QDLF vertical stainless steel multistage pump is designed according to the advantages of our ISG vertical centrifugal pump and DL vertical multistage centrifugal pump. The structure adopts vertical and segmented forms, and the suction and discharge ports of the pump are designed in a straight shape below, and a good hydraulic model is adopted. The axial force of the pump is solved by the hydraulic balance method, and the residual axial force is received by a ball bearing, so the operation is stable, the noise is low, the floor space is small, and the decoration is convenient. The outer cylinder of the vertical stainless steel multi-stage pump is made of stainless steel and has beautiful appearance. It is especially suitable for parallel use of multiple pumps in high-rise buildings to reduce the power of the single-pump unit and simplify the electronic control equipment. It is suitable for fire protection, domestic water supply, air conditioning unit circulation, cooling water transportation, etc. for houses, hospitals, hotels, department stores, office buildings, etc. in high and low-rise buildings.
Stainless steel multi-stage pump product features
1. Adopt excellent hydraulic model and advanced manufacturing process to greatly improve the performance and service life of the pump.
2. Since the shaft seal is made of a mechanical seal of cemented carbide and fluororubber, the reliability of the pump operation and the temperature of the transport medium can be improved.
3. The over-flow part of the pump is stamped and welded with stainless steel plate, which makes the pump suitable for mild corrosive media.
4. The overall structure is compact, small in size, light in weight, low in noise, remarkable in energy saving effect, and convenient in maintenance.
5. The water inlet and outlet of the pump are on the same horizontal line of the pump base and can be directly used in the pipeline.
6, using a standard motor, the user can easily equip the motor as needed.
7. It can be equipped with intelligent protector according to the user's needs to effectively protect the pump from dry running, phase loss and overload.
Vertical stainless steel multi-stage pump product use water supply
Water plant filtration and transportation, water plant district water supply, supercharged supercharged, high-rise building supercharged.
Industrial pressurization: process water system, cleaning system, high pressure flushing system, fire fighting system.
Industrial liquid transport: cooling and air conditioning systems, boiler feed water and condensing systems, machine tool packages, and acidic and alkaline media delivery.
Water treatment: water treatment systems for ultrafiltration systems, reverse osmosis systems, distillation systems, separators and swimming pools.
Irrigation: irrigation, sprinkler irrigation, drip irrigation.
Vertical stainless steel multistage pump conditions
1. Medium temperature: -15°C~+120°C.
2. Large ambient temperature: +40 °C.
3, the pressure of the environment: 10bar.
4. The pressure on large imports is limited by the pressure of the environment.
5. When the density or viscosity of the transport medium is greater than water, consider using a motor with a higher power.
Conveying medium
1. A non-flammable and explosive medium that is thin, clean, and free of solid particles or fibers.
2. Such as mineral water, softened water, pure water, clear oil and other light chemical media.
3. The main material of the vertical stainless steel multi-stage pump is stainless steel, which can be used to pump mild corrosive media.
The motor is motorized as a fully enclosed, air-cooled two-pole standard motor protection class: IP55 Insulation class: F Standard voltage (50Hz): single-phase 220V, three-phase 220V/380V
Model meaning
For example: QDLF8-160*10
QDLF-vertical multi-stage ram pump
8-rated flow
160-level *10
 Â
Â
Â
Â
Â
Â
(m)
(m3/h)
(KW)
(r/min)
CDL1-2
11.5
1
0.37
2900
CDL1-3
17
1
0.37
2900
CDL1-4
22.5
1
0.37
2900
CDL1-5
28
1
0.37
2900
CDL1-6
33.5
1
0.37
2900
CDL1-7
39
1
0.37
2900
CDL1-8
45
1
0.55
2900
CDL1-9
51
1
0.55
2900
CDL1-10
57
1
0.55
2900
CDL1-17
95
1
1.1
2900
CDL1-19
106
1
1.1
2900
CDL1-21
117
1
1.1
2900
CDL1-23
128
1
1.1
2900
CDL1-25
139
1
1.5
2900
CDL1-27
150
1
1.5
2900
CDL1-30
166
1
1.5
2900
CDL1-33
183
1
2.2
2900
CDL1-36
200
1
2.2
2900
CDL2-2
15
2
0.37
2900
CDL2-3
22
2
0.37
2900
CDL2-4
30
2
0.55
2900
CDL2-5
37
2
0.55
2900
CDL2-6
45
2
0.75
2900
CDL2-7
52
2
0.75
2900
CDL2-9
67
2
1.1
2900
CDL2-11
82
2
1.1
2900
CDL2-13
98
2
1.5
2900
CDL2-15
112
2
1.5
2900
CDL2-18
136
2
2.2
2900
CDL2-22
165
2
2.2
2900
CDL2-26
198
2
3.0
2900
CDL3-2
9
3
0.37
2900
CDL3-3
14
3
0.37
2900
CDL3-4
19
3
0.37
2900
CDL3-5
23
3
0.37
2900
CDL3-6
28
3
0.55
2900
CDL3-7
32
3
0.55
2900
CDL3-8
37
3
0.75
2900
CDL3-9
42
3
0.75
2900
CDL3-10
47
3
0.75
2900
CDL3-11
51
3
1.1
2900
CDL3-12
55
3
1.1
2900
CDL3-13
60
3
1.1
2900
CDL3-15
69
3
1.1
2900
CDL3-17
79
3
1.5
2900
CDL3-19
88
3
1.5
2900
CDL3-21
98
3
2.2
2900
CDL3-23
107
3
2.2
2900
CDL3-25
116
3
2.2
2900
CDL3-27
124
3
2.2
2900
CDL3-29
133
3
2.2
2900
CDL3-31
142
3
3
2900
CDL3-33
151
3
3
2900
CDL3-36
168
3
3
2900
CDL4-2
15
4
0.37
2900
CDL4-3
24
4
0.55
2900
CDL4-4
32
4
0.75
2900
CDL4-5
40
4
1.1
2900
CDL4-6
48
4
1.1
2900
CDL4-7
56
4
1.5
2900
CDL4-8
64
4
1.5
2900
CDL4-10
81
4
2.2
2900
CDL4-12
95
4
2.2
2900
CDL4-14
112
4
3
2900
CDL4-16
129
4
3
2900
CDL4-19
153
4
4
2900
CDL4-22
178
4
4
2900
CDL8-2/1
9
8
0.75
2900
CDL8-2
18
8
0.75
2900
CDL8-3
27
8
1.1
2900
CDL8-4
36
8
1.5
2900
CDL8-5
45
8
2.2
2900
CDL8-6
54
8
2.2
2900
CDL8-8
73
8
3.0
2900
CDL8-10
92
8
4.0
2900
CDL8-12
111
8
4.0
2900
CDL8-14
130
8
5.5
2900
CDL8-16
148
8
5.5
2900
CDL8-18
167
8
7.5
2900
CDL8-20
186
8
7.5
2900
CDL12-2
20
12
1.5
2900
CDL12-3
30
12
2.2
2900
CDL12-4
40
12
3
2900
CDL12-5
50
12
3
2900
CDL12-6
60
12
4
2900
CDL12-7
70
12
5.5
2900
CDL12-8
80
12
5.5
2900
CDL12-9
91
12
5.5
2900
CDL12-10
101
12
7.5
2900
CDL12-12
121
12
7.5
2900
CDL12-14
141
12
11
2900
CDL12-16
162
12
11
2900
CDL12-18
183
12
11
2900
CDL16-2
22
16
2.2
2900
CDL16-3
34
16
3.0
2900
CDL16-4
46
16
4.0
2900
CDL16-5
58
16
5.5
2900
CDL16-6
70
16
5.5
2900
CDL16-7
82
16
7.5
2900
CDL16-8
94
16
7.5
2900
CDL16-10
118
16
11
2900
CDL16-12
141
16
11
2900
CDL16-14
166
16
15
2900
CDL16-16
189
16
15
2900
CDL20-1
10
20
1.1
2900
CDL20-2
23
20
2.2
2900
CDL20-3
35
20
4.0
2900
CDL20-4
47
20
5.5
2900
CDL20-5
58
20
5.5
2900
CDL20-6
70
20
7.5
2900
CDL20-7
82
20
7.5
2900
CDL20-8
94
20
11
2900
CDL20-10
118
20
11
2900
CDL20-12
142
20
15
2900
CDL20-14
166
20
15
2900
CDL20-17
202
20
18.5
2900
CDL32-10-1
9
32
1.5
2900
CDL32-10
13
32
2.2
2900
CDL32-20-2
20
32
3.0
2900
CDL32-20
27
32
4.0
2900
CDL32-30-2
33
32
5.5
2900
CDL32-30
40
32
5.5
2900
CDL32-40-2
46
32
7.5
2900
CDL32-40
53
32
7.5
2900
CDL32-50-2
60
32
11
2900
CDL32-50
67
32
11
2900
CDL32-60-2
74
32
11
2900
CDL32-60
81
32
11
2900
CDL32-70-2
88
32
15
2900
CDL32-70
95
32
15
2900
CDL32-80-2
102
32
15
2900
CDL32-80
109
32
15
2900
CDL32-90-2
117
32
18.5
2900
CDL32-90
124
32
18.5
2900
CDL32-100-2
131
32
18.5
2900
CDL32-100
138
32
18.5
2900
CDL32-110-2
146
32
22
2900
CDL32-110
153
32
22
2900
CDL32-120-2
160
32
22
2900
CDL32-120
167
32
22
2900
CDL32-130-2
174
32
30
2900
CDL32-130
181
32
30
2900
CDL32-140-2
189
32
30
2900
CDL32-140
196
32
30
2900
CDL42-10-1
16
42
3.0
2900
CDL42-10
20
42
4.0
2900
CDL42-20-2
32
42
5.5
2900
CDL42-20
41
42
7.5
2900
CDL42-30-2
52
42
11
2900
CDL42-30
61
42
11
2900
CDL42-40-2
73
42
15
2900
CDL42-40
81
42
15
2900
CDL42-50-2
93
42
18.5
2900
CDL42-50
101
42
18.5
2900
CDL42-60-2
113
42
22
2900
CDL42-60
122
42
22
2900
CDL42-70-2
134
42
30
2900
CDL42-70
142
42
30
2900
CDL42-80-2
154
42
30
2900
CDL42-80
162
42
30
2900
CDL42-90-2
174
42
30
2900
CDL42-90
183
42
37
2900
CDL42-100-2
194
42
37
2900
CDL42-100
203
42
37
2900
CDL42-110-2
217
42
45
2900
CDL42-110
225
42
45
2900
CDL42-120-2
238
42
45
2900
CDL42-120
247
42
45
2900
CDL42-130-2
259
42
45
2900
CDL65-10-1
13
65
4.0
2900
CDL65-10
20
65
5.5
2900
CDL65-20-2
26
65
7.5
2900
CDL65-20-1
33
65
11
2900
CDL65-20
40
65
11
2900
CDL65-30-2
46
65
15
2900
CDL65-30-1
53
65
15
2900
CDL65-30
60
65
18.5
2900
CDL65-40-2
66
65
18.5
2900
CDL65-40-1
73
65
22
2900
CDL65-40
80
65
22
2900
CDL65-50-2
88
65
30
2900
CDL65-50-1
95
65
30
2900
CDL65-50
102
65
30
2900
CDL65-60-2
110
65
30
2900
CDL65-60-1
117
65
37
2900
CDL65-60
124
65
37
2900
CDL65-70-2
132
65
37
2900
CDL65-70-1
139
65
37
2900
CDL65-70
146
65
45
2900
CDL65-80-2
154
65
45
2900
CDL65-80-1
161
65
45
2900
CDL85-10-1
14
85
5.5
2900
CDL85-10
20
85
7.5
2900
CDL85-20-2
30
85
11
2900
CDL85-20
41
85
15
2900
CDL85-30-2
52
85
18.5
2900
CDL85-30
64
85
22
2900
CDL85-40-2
75
85
30
2900
CDL85-40
86
85
30
2900
CDL85-50-2
98
85
37
2900
CDL85-50
110
85
37
2900
CDL85-60-2
122
85
45
2900
CDL85-60
134
85
45
2900
CDL120-10
18.5
120
11
2950
CDL120-20-1
34.5
120
18.5
2950
CDL120-20
40
120
22
2950
CDL120-30
61
120
30
2950
CDL120-40-1
76
120
37
2950
CDL120-50-1
97
120
45
2950
CDL120-60-1
118
120
55
2950
CDL120-70
145
120
75
2950
CDL150-10-1
12.5
150
11
2950
CDL150-10
18.5
150
15
2950
CDL150-20-1
35
150
22
2950
CDL150-30-2
49
150
30
2950
CDL150-30
63
150
37
2950
CDL150-40-1
77
150
45
2950
CDL150-50-2
92
150
55
2950
CDL150-60
130
150
75
2950 Â Â
1. During operation, the roller should start before it can start to vibrate, and the internal combustion engine should be placed at medium speed and then adjusted to high speed.
2. Shut down first when shifting and reversing, and reduce the engine speed when shifting.
3. Vibration of the roller is strictly prohibited on solid ground.
4. When rolling the soft subgrade, it should be rolled 1 or 2 times without vibration, and then vibrated.
5. When rolling, the vibration frequency should be consistent. For the vibratory roller that can adjust you, the vibration frequency should be adjusted before operation, and the vibration frequency should not be adjusted without vibration.
6. The adjustment of the reversing clutch, shock clutch and brake should be performed after the main clutch is disengaged.
7. When going up or downhill, you cannot use the fast gear. In sharp turns, including articulated vibratory rollers, it is strictly forbidden to use fast gears when rolling in small turns.
8. The roller must not be engaged in vibration when driving at high speed.
9. When stopping, the vibration should be stopped first, and then the reversing mechanism should be placed in the neutral position, the transmission should be placed in neutral, and finally the handbrake control lever should be pulled up, and the internal combustion engine will stop after a few minutes of idling.
10. Other operational requirements should meet the requirements of the static roller.
â‘ Whether it is uphill or downhill, the layer under the asphalt mixture must be clean and dry, and the asphalt bonding layer must be sprayed to avoid the mixture from slipping during rolling.
â‘¡Whether it is rolling uphill or downhill, the driving wheel of the roller should be behind. This has the following advantages: when going uphill, the rear drive wheel can bear the driving force provided by the ramp and the machine itself, and the front wheel initially compacts the road surface to withstand the large shear force generated by the drive wheel When going downhill, the impact force generated by the roller's own weight is offset by the braking of the drive wheels. Only the mixture after the front wheel is rolled has the ability to support the rear drive wheel to generate shear force.
â‘¢ When rolling uphill, the roller should be stable in starting, stopping and accelerating to avoid excessively high or low speed.
④Before rolling uphill, the mixture should be cooled to the specified lower limit temperature, and then static pre-compression should be carried out. Vibration compaction is used only when the temperature of the mixture falls to the lower limit (120°C).
⑤ Downhill rolling should avoid sudden shifting and braking.
â‘¥When rolling downhill with a steep slope, a light roller should be used for pre-compaction, and then a heavy roller or vibratory roller should be used for compaction.