Product Description
Model Meaning
Product Introduction
The WQK/QG non-clogging submersible sewage pump with cutting and shredding blades offers exceptional sewage handling performance. Its efficient cutting system can shred long fibers, plastics, paper, cloth strips, straw, ropes, and similar impurities in wastewater before discharge.
The pump adopts a well-designed hydraulic structure that allows full-head operation. The combination of a high-quality dry motor and the hydraulic pump section ensures overall pump efficiency reaches the performance level of the ABS ASS cutting series from Germany.
The pump uses high-quality hard alloy materials, a dual mechanical seal, and an oil-sealed shaft system. The maximum submergence depth shall not exceed half of the motor height, and the temperature of the pumped liquid must not exceed 40°C.
Product Features
The WQK/QG non-clogging cutting submersible sewage pump is designed for pumping domestic wastewater, sewage, manure, and liquids containing short fiber residues, wood chips, starch, silt, mineral particles, and other solid suspensions or non-corrosive media.
The pumped liquid temperature must not exceed 40°C, density must not exceed 1200 kg/m³, and pH should be 5–9.
This pump adopts a double mechanical seal and a rotating impeller made of stainless steel. It features excellent wear resistance, non-clogging performance, anti-winding capability, compact size, and easy portability.
Applications
The WQK/QG non-clogging cutting submersible sewage pump is mainly used for engineering wastewater and domestic sewage discharge.
Examples include:
(1) Construction sites, foundation projects, municipal facilities, and waterworks.
(2) Basement drainage of high-rise buildings, civil-defense shelters, subways, and other underground structures.
(3) Sewage treatment and circulation water systems of small and medium-sized enterprises.
(4) Slurry transfer in food processing, papermaking, brewing, steel and non-ferrous industries, leather, textile, pharmaceuticals, and cement plants.
(5) Poultry farms, pig farms, aquaculture, fish ponds (for drainage, cleaning, aeration), septic tanks, and similar wastewater applications.
Note: The performance and data of WQK models are the same as WQK/QG models except for the absence of the cutting device; the internal structure remains identical.
Working Conditions
(1) Before using the pump, check whether the power cable is damaged. Avoid pulling or dragging the cable during transportation and installation to prevent cable breakage and water leakage accidents. Replace the cable immediately if hardening or cracks occur. Use a megger to check insulation resistance (must be ≥ 1 MΩ).
(2) Identify the grounding wire (usually yellow-green or with a grounding symbol) and connect it according to standard procedures.
(3) Use an appropriate protection device (such as leakage protector, air switch, phase-loss and overload protector). Do NOT connect directly with a knife switch.
(4) Connect the power cable properly and perform a test run to confirm correct rotation. If rotation is incorrect, swap any two phases of the three-phase power supply (test run must not exceed 30 seconds).
(5) Install the discharge connector and hose (or iron pipe). Tie a rope to the pump handle (never use the power cable as a lifting rope). Lower the pump into the liquid and turn on the power to operate.
(6) For safety, do NOT perform underwater operations (moving, checking, repairing, etc.) while the pump is powered on, to avoid electrical hazards in case of leakage.
(7) The pump must NOT operate for long periods (or even short periods) when fully exposed above the water surface. Avoid excessively frequent start-stop cycles to prevent motor overheating.
(8) Continuous pumping of liquids with high sand content will cause significant wear to the hydraulic components of the WQK/QG cutting sewage pump. For such conditions, it is recommended to use our vortex submersible sewage pump.
(9) If the pump runs abnormally—such as failure to start, tripping of protection devices, blown fuses—immediately disconnect the power supply. Check wiring and protective devices.
If all external devices function normally, the pump may have internal faults. Continued operation is strictly prohibited to avoid accidents!
Performance Parameters
|
Model
|
Diameter
|
Maximum Flow Rate
|
Maximum Head |
Motor Power (kW)
|
Voltage
|
|
mm
|
m3/h
|
m
|
KW
|
v
|
|
|
WQK10-15-1.1
|
50
|
23
|
17
|
1.1
|
380
|
|
WQK15-9-1.1
|
65
|
30
|
15
|
1.1
|
380
|
|
WQK15-15-1.5
|
50
|
25
|
20
|
1.5
|
380
|
|
WQK20-12-1.5
|
65
|
35
|
18
|
1.5
|
380
|
|
WQK9-22-2.2
|
50
|
32
|
25
|
2.2
|
380
|
|
WQK25-12-2.2
|
65
|
45
|
21
|
2.2
|
380
|
|
WQK35-10-2.2
|
80
|
56
|
15
|
2.2
|
380
|
|
WQK15-25-3
|
50
|
35
|
30
|
3
|
380
|
|
WQK25-18-3
|
65
|
48
|
24
|
3
|
380
|
|
WQK35-13-3
|
80
|
60
|
18
|
3
|
380
|
|
WQK50-9-3
|
100
|
68
|
12
|
3
|
380
|
|
WQK15-32-4
|
50
|
40
|
36
|
4
|
380
|
|
WQK25-28-4
|
65
|
50
|
32
|
4
|
380
|
|
WQK40-18-4
|
80
|
65
|
27
|
4
|
380
|
|
WQK50-12-4
|
100
|
85
|
18
|
4
|
380
|
|
WQK18-34-5.5
|
50
|
43
|
40
|
5.5
|
380
|
|
WQK30-26-5.5
|
65
|
55
|
35
|
5.5
|
380
|
|
WQK40-24-5.5
|
80
|
70
|
30
|
5.5
|
380
|
|
WQK70-10-5.5
|
100
|
95
|
22
|
5.5
|
380
|
|
WQK100-7-5.5
|
150
|
120
|
12
|
5.5
|
380
|
|
WQK45-24-7.5
|
80
|
85
|
35
|
7.5
|
380
|
|
WQK70-18-7.5
|
100
|
110
|
30
|
7.5
|
380
|
|
WQK100-12-7.5
|
150
|
152
|
20
|
7.5
|
380
|
OEM & Custom Solutions
We provide OEM/ODM services for global clients, including stainless-steel versions, special voltages (220/415/460V), explosion-proof motors, extended cable lengths, and control panels. Custom pump configurations, branding, and packaging are available for export projects. All products are tested to ISO and CE standards for quality and reliability.
FAQs for Oversea Buyers
Q: What makes the WQK/QG pump different from regular sewage pumps?
A: It integrates a cutting mechanism that grinds long fibers, plastics, and paper into small pieces before discharge, preventing clogging in pipes.
Q: What materials are used for the cutter and impeller?
A: The cutting blades and impellers are made of stainless steel with high hardness and wear resistance for long service life.
Q: Can it handle high-viscosity or sand-containing wastewater?
A: Yes, but for heavy sand content, we recommend using our vortex-type sewage pumps to reduce wear.
Q: What kind of power supply is required?
A: Standard 380V three-phase, 50Hz. Other voltages and frequencies can be customized for export markets.
Q: How should the pump be installed and operated?
A: Use a safety rope to lower the pump; do not lift by the cable. Ensure proper grounding and avoid dry running or long-term operation above water.
Q: Is OEM labeling available?
A: Yes, we support private label, custom nameplates, and packaging for distributors and project buyers.
Q: Which markets are these pumps exported to?
A: Our WQK/QG grinder pumps are exported to Southeast Asia, the Middle East, Africa, and South America, widely used in municipal, industrial, and agricultural systems.