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Yongjia County Marine Water Pump Factory
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Yongjia County Marine Water Pump Factory

  • E-mail

    oubeihaiyang.1688.com

  • Phone

    13676799385

  • Address

    No. 245 Linxia Road, Zhangbao Industrial Zone, Sanqiao Industrial Park, Wenzhou

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G-type vertical clear water pipeline shielded pump

NegotiableUpdate on 03/18
Model
Nature of the Manufacturer
Producers
Product Category
Place of Origin
Overview
The G-type vertical clear water pipeline shielded pump adopts a unique structure of fully enclosed and no mechanical seal. The stator and rotor are shielded and sealed with stainless steel sleeves, allowing the conveyed liquid to enter the motor for internal cooling. This solves the problems of medium leakage, environmental pollution, poor operational reliability, and difficult maintenance caused by the use of mechanical seals in ordinary pipeline electric pumps. The rotating part is supported by stone mill bearings and lubricated with conveying medium, which is a low-noise, green and environmentally friendly upgraded product. Due to its advantages of low noise, no leakage, reliable operation, and maintenance free, it has gained the trust of users. The G series shielded electric pump is mainly used for HVAC cold and hot water circulation, industrial and urban building water supply, fire pipeline pressurization, long-distance water delivery and other occasions.
Product Details

Model significance

G型立式清水管道屏蔽泵型号意义

Characteristics and Applications
The G-type vertical clear water pipeline shielded pump adopts a unique structure of fully enclosed and no mechanical seal. The stator and rotor are shielded and sealed with stainless steel sleeves, allowing the conveyed liquid to enter the motor for internal cooling. This solves the problems of medium leakage, environmental pollution, poor operational reliability, and difficult maintenance caused by the use of mechanical seals in ordinary pipeline electric pumps. The rotating part is supported by stone mill bearings and lubricated with conveying medium, which is a low-noise, green and environmentally friendly upgraded product. Due to its advantages of low noise, no leakage, reliable operation, and maintenance free, it has gained the trust of users. The G series shielded electric pump is mainly used for HVAC cold and hot water circulation, industrial and urban building water supply, fire pipeline pressurization, long-distance water delivery and other occasions.

working conditions
1. The flow range of this series is 1-1080m3/h, and the flow range of Yangcheng is 5-105m.
2. The pressure of the electric pump system is 1.0MPa (or 1.6MPa), which is the sum of the pump suction pressure and Yangcheng pressure. When the user requests a system pressure higher than 1.0MPa, it must be separately stated when ordering.
3. The conveying medium is clean water or a liquid with physical and chemical properties similar to water, with a medium temperature of 95 ° C (N and NY types) or 150 ° C (GY type). If the user chooses GY type, an external circulating cooling water system must be separately configured; When the temperature of the medium is below 20 ° C, it must be raised separately when ordering, and our company will take special process measures.

structural diagram

G型立式清水管道屏蔽泵结构示意图
serial number
name
serial number
name
serial number
name
1
Upper Bearing Housing
6
Graphite bearing sleeve
11
axis
2
base
7
Drainage pipe
12
Stator shielding sleeve
3
Wire junction box
8
thrust bearing
13
Rotor shielded pump
4
pump body
9
Axion
14
Lower bearing seat
5
base
10
stator

15

impeller


performance parameters

model
Flow rate (m3/h)
Yang Cheng (m)
Power (kw)
Voltage (v)
Frequency (Hz)
Current A
Speed min
Noise dB
Inhalation caliber
Discharge caliber
Weight kg
G5-12-0.75N
5
12
0.75
380
50
2.5
1500
45
40
40
65
G5-15-1.3NY
5
15
1.3
380
50
4.15
1500
45
50
50
82
G5.6-16-1.3NY
5.6
16
1.3
380
50
4.15
1500
45
50
50
82
G6.3-4-0.18NY
6.3
4
0.18
380
50
1.0
1500
45
40
40
36
G6.3-12.5-0.75N
6.3
12.5
0.75
380
50
2.5
1500
45
40
40
65
G6.3-20-1.8NY
6.3
20
1.8
380
50
5.3
1500
50
40
40
105
G9-20-1.8NY
9
20
1.8
380
50
5.3
1500
50
50
50
108
G11-2-0.18N
11
2
0.18
380
50
1.0
1500
45
50
50
35
G11-10-0.75NY
11
10
0.75
380
50
2.6
1500
45
50
50
68
G11.6-28-3NY
11.6
28
3
380
50
8.0
1500
50
50
50
140
G12.5-5-0.45N
12.5
5
0.45
380
50
1.5
1500
45
50
50
46
G12.5-12.5-1.1N
12.5
12.5
1.1
380
50
3.5
1500
45
50
50
70
G12.5-20-2.2NY
12.5
20
2.2
380
50
6.4
1500
50
50
50
110
G12.5-32-4NY
12.5
32
4
380
50
11.3
1500
50
50
50
203
model
Flow rate (m3/h)
Yang Cheng (m)
Power (kw)
Voltage (v)
Frequency (Hz)
Current A
Speed min
Noise dB
Inhalation caliber
Discharge caliber
Weight kg
G18-16-2.2NY
18
16
2.2
380
50
6.4
1500
50
50
50
113
G20-10-1.3N
20
10
1.3
380
50
4.15
1500
45
65
65
80
G20-10-1.3NY
20
10
1.3
380
50
4.15
150
45
65
65
80
G20-20-3NY
20
20
3
380
50
8.4
1500
50
65
65
125
G22-16-2.2NY
22
16
2.2
380
50
6.4
1500
50
65
65
120
G25-12.5-1.8NY
25
12.5
1.8
380
50
5.3
1500
50
65
65
106
G25-20-3NY
25
20
3
380
50
8.4
1500
50
65
65
125
G27-7-1.1N
27
7
1.1
380
50
3.5
1500
45
65
65
73
G40-10-2.2NY
40
10
2.2
380
50
6.4
1500
50
100
100
120
G45-30-9NY
40
30
9
380
50
23.6
1500
60
100
100
300
G50-12.5-3NY
50
12.5
3
380
50
8.4
1500
50
100
100
140
G50-20-5.5NY
50
20
5.5
380
50
14.3
1500
55
100
100
225
G50-32-9N
50
32
9
380
50
23.6
1500
60
100
100
300
G60-32-9NY
60
32
9
380
50
23.6
1500
60
100
100
300
model
Flow rate (m3/h)
Yang Cheng (m)
Power (kw)
Voltage (v)
Frequency (Hz)
Current A
Speed min
Noise dB
Inhalation caliber
Discharge caliber
Weight kg
G75-17.5-7.5NY
75
17.5
7.5
380
50
19.8
1500
55
125
125
262
G75-27-11NY
75
27
11
380
50
28.8
1500
60
125
125
350
G80-20-7.5NY
80
20
7.5
380
50
20
1500
55
125
125
262
G80-32-13NY
80
32
13
380
50
33.8
1500
60
125
125
373
G80-40-18.5NY
80
40
18.5
380
50
46.2
1500
65
125
125
420
G100-20-9NY
100
20
9
380
50
23.6
1500
60
125
125
310
G100-27-11NY
100
27
11
380
50
28.8
1500
60
125
125
350
G100-32-15NY
100
32
15
380
50
38.4
1500
60
125
125
380
G100-40-22NY
100
40
22
380
50
54.2
1500
65
125
125
450
G100-50-25NY
100
50
25
380
50
61
1500
65
125
125
495
G125-20-13NY
125
20
13
380
50
33.7
1500
60
125
125
373
G125-32-22NY
125
32
22
380
50
54.2
1500
65
125
125
480
G125-40-25NY
125
40
25
380
50
61
1500
65
125
125
495
G125-50-37NY
125
50
37
380
50
89
1500
70
125
125
580
GG140-24-18.5NY
140
24
18.5
380
50
46.2
1500
65
125
125
470
G140-30-18.5NY
140
30
18.5
380
50
46.2
1500
65
125
125
450

Installation Instructions
1. Before installation, check if the fasteners of the unit are loose and if there are any foreign objects blocking the flow inside the pump body to prevent damage to the impeller and pump body during pump operation.
2During installation, the weight of the pipeline should not be added to the water pump, and there should be separate supporting bodies to prevent pump deformation from affecting operational performance and service life.
3In order to prevent impurities from entering the pump and blocking the flow channel, a filter with a cross-sectional area 3-4 times larger than the suction pipe should be installed in front of the pump inlet.
4When a pump is used to transport hot water liquids, in order to prevent the pump from being subjected to thermal deformation of the pipeline, the pump may not be fixed with foot bolts. When the pipeline system expands and contracts due to heat, the pump and pipeline can move simultaneously.
5For the convenience of maintenance and safety of use, a regulating valve should be installed on the inlet and outlet pipelines of the pump, and a pressure gauge should be installed near the inlet and outlet of the pump to ensure normal operation and service life of the pump within the rated range.

Fault causes and troubleshooting methods

Fault phenomenon
Possible causes
exclusion method
1. The water pump is not producing water
1. The import and export valves are not open, and the inlet and outlet pipelines are blocked. The impeller flow channel is also blocked.
2. The motor is running in the wrong direction and has a slow speed due to phase loss.
3. The suction pipe is leaking air.
4. There is air inside the pump chamber.
5. Insufficient imported water supply.
6. Excessive pipeline resistance and improper pump selection.
1. Check and remove blockages
2. Adjust the motor direction and tighten the motor wiring
3. Tighten all sealing surfaces and eliminate air
4. Open the exhaust valve on the top of the motor and exhaust all the air.
5. Shutdown inspection and adjustment.
6. Reduce pipeline bends and reselect pumps.
2. Insufficient water pump flow
1. First, check according to the above reasons.
2. Partial blockage of pipeline and pump impeller, deposition of scale, and insufficient valve opening
3. The voltage is too low and the speed is too low.
4. The impeller mouth ring is worn and there is excessive leakage.
1. First, exclude according to the above
2. Remove the obstruction and readjust the valve opening.
3. Voltage stabilization
4. Replace the impeller
3. Excessive power
1. Exceeding the rated flow usage.
2. The impeller or rotating components are rubbing against each other.
3. The sliding bearing is worn or broken.
4. The specific gravity of the medium is too high.
1. Adjust the outlet valve to reduce the flow rate
2. Check, eliminate or replace components
3. Replace the sliding bearing
4. Modification
4. Noise vibration
1. Unstable pipeline support
2. Medium mixed with gas
3. Generating cavitation phenomenon
4. Friction between rotating parts
1. Stable pipeline
2. Increase suction pressure and exhaust.
3、 降低真空度
4. Check, adjust or replace
5. Motor overheating
1. Excessive traffic and overloaded operation
2. The stator and rotor are rubbing against each other.
3. Insufficient voltage
4. Blockage of cooling system pipeline
1. Adjust the outlet valve to reduce the flow rate
2. Check and exclude
3. Voltage stabilization
4. Clearing blockages