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Performance Range

Max. Flow: 300m³/h 

Max.Head: 20 m

 

Application Limits

1. Ambient temperature: 0-40℃

2. Maximum liquid temperature +40℃

3. PH level from 4-10

4. Maximum liquid density 1.2*10kg/m³

5. Power frequency is 50Hz. Nominal voltage is 220VAC for single phase

                                                 And 380VAC for three phase with the range from -100% to 10%.

6. Immersion depth from 0.5m-5m

 

Application Fields

WQGS series non-clog submerged motor pumps are applicable for the discharge of seriously polluted waste water in factories and commercial sites,sewage draining station in residential area, drainage system in city waste water treatment plant,draining station for civil defense, water supply in tap water plant, sewage discharge in hospitals and hotels,construction sites of municipal projects, exploration,mines, rural methane pool,agricultural irrigation etc. To deliver waste water and pollutants containing granules, as well as clean water and corrosive mediums. 

 

Features

1.Insulation class:F

2.The water-resistant impeller of QT 450-10 material.

3.Stainless steel shaft extension, carbide double -sides mechanical sealing.

4.Double channel impeller, good flow capacity, excellent hydraulic performance.

 

Optional Available on Request

Other voltage or frequency is 60HZ

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Number Type Flow Hydraulic   head RPM Voltage Power Height
(m³/h) (m) (r/min) (V) (kW)
1 50WQGS10-10-0.75 10 10 2900 380 0.75 43CM
2 50WQGS10-12-1.1 12 10 2900 380 1.1 43CM
3 50WQGS15-15-1.5 15 15 2900 380 1.5 58CM
4 65WQGS20-10-1.5 15 15 2900 380 1.5 58CM
5 50WQGS15-20-2.2 15 20 2900 380 2.2  
6 65WQGS25-15-2.2 25 15 2900 380 2.2  
7 80WQGS30-12-2.2 30 12 2900 380 2.2  
8 50WQGS20-25-3 20 25 2900 380 3  
9 65WQGS25-22-3 25 22 2900 380 3  
10 80WQGS35-15-3 35 15 2900 380 3  
11 65WQGS35-18-4 35 18 2900 380 4  
12 80WQGS45-15-4 45 15 2900 380 4  
13 100WQGS50-12-4 50 12 2900 380 4  
14 65WQGS40-20-5.5 40 20 2900 380 5.5  
15 80WQGS60-18-5.5 60 18 2900 380 5.5  
16 100WQGS65-15-5.5 65 15 2900 380 5.5  
17 80WQGS80-18-7.5 80 18 2900 380 7.5  
18 100WQGS100-15-7.5 100 15 2900 380 7.5  
19 100WQGS120-18-11 120 18 1450 380 11  
20 150WQGS150-15-11 150 15 1450 380 11  
21 100WQGS150-18-15 150 18 1450 380 15  
22 200WQGS200-15-15 200 15 1450 380 15  
23 150WQGS180-20-18.5 180 20 1450 380 18.5  
24 200WQGS250-15-18.5 250 15 1450 380 18.5  
25 150WQGS200-20-22 200 20 1450 380 22  
26 200WQGS300-15-22 300 15 1450 380 22  

 

WQGS (GWQ) Series:

Installation dimensional drawing of WQGS (GWQ) series non-close fixed submerged motor pump.

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Installation, Operation and Maintenance Instructions:

● It is forbidden to pull cables with force in the installation and removal of electric pump to avoid wires breaking and joint delinking which lead to normal operation failure and even burns;

● Please ensure correct and reliable cable earthing in the installation of electric pump. It is forbidden for humans or animals to approach operational water area or touch the electric pump when it is working. In order to reduce electric shock risks, it can only be connected with earthing plug;

● Overload operation is forbidden;

● The cables associated with pumps should not be less than 1.2 times of the electric pump area;

● The electric pump must be fastened in the installation. But the cables can not be stressed or rotate together with the electric pump once it is started;

● Once the pump does not produce water in the operation, the electric pump should be checked for any reverse rotation or the check valve at the water outlet mouth should be checked for any residual air;

● Phase-to-phase and relative ground-to-ground insulation resistance of the motor of electric pump should be inspected on a regular basis with the resistance no lower than 2MΩ. Otherwise, the equipment should be disassembled for inspection and repair;

● After half a year of normal operation under stipulated working conditions, the electric pump should be checked for oil room sealing condition. Once the oil is emulsified or sedimented water comes out, 10# machine oil and mechanical seal parts should be replaced in a timely manner;

● One large-scale repair work should be conducted after normal operation for one year: worn parts should be replaced, fasteners should be inspected and lubricant should be supplemented and replaced to ensure excellent lubrication in the normal operation;

● Please clean the electric pump and wipe out beads if not in use.

 

Malfunction Analysis and Elimination

Malfunction Cause analysis Elimination methods
inadequate flow  or no water 1.mistaken blade item adjust any two phase sequence of the power circuits
2.openness and completeness of outlet valve inspect valve
3.left air in the pipes between valve and pump  makes it difficult to open the valve discharge air in the pipes
4.too low rotation speed check the power supply for voltage degree
5.excessive seal ring abrasion replace
6.high density or viscosity in the liquid change the density and viscosity of liquid
7. pipe and blade blockage eliminate obstacles in the pipes and blades
unstable electric  pump operation 1.blade imbalance replace or operate wheel balancing
2.bearing damage replace
3.overload operation adjust valve to avoid electric pump overload
4.sliding installation installation again
low insulation  resistance 1.leakage in the wiring end of cable and power circuits fasten and press nuts tightly
2cable wires damage or water entering from head replace
3.mechanical seal abrasion replace
4.O-shaped seal ring aging and failure replace
excessive current 1.low working voltage adjust working voltage
2.blade blockage or stuck-up clean obstacles in the pipes and liquid
3.high density or viscosity in the liquid change the density and viscosity of liquid
4.excessive valve openness adjust valve openness

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