WQ Type Non-blocking Submersible Sewage Pump

The WQ type non-blocking submersible sewage pump is the most classic submersible sewage pump in the national standard series. The entire machine's motor and pump are integrated and submerged underwater for operation. There is no need to fill water or build a pump room. It is the main model for municipal sewage, basement of buildings, septic tanks, slaughterhouses and breeding facilities, etc., in "solid + fiber-containing" sewage scenarios.

Copper core motor overheating protection
Low heat generation, high efficiency, enhanced durability
Copper core coil, powerful power, low temperature rise, enabling the water pump to operate smoothly during operation
Intelligent precision machining of high-precision rotor
Extends service life
Dynamic balance adjustment, smooth operation, intelligent precision machining
Double roller high-precision bearings
Silent bearings, stable operation under high load, resistant to wear, long service life
Mechanical seal rubber sealing ring
Rubber sealing, high precision, low resistance, small sealing area, resistant to wear

It does not block the impeller, and all fibers and solids can pass through: The single-flow or double-flow impeller has a wide channel without any entanglement points; the vortex-type impeller allows solids to flow through the central channel of the vortex shell without touching the impeller blades; the cutting-type impeller has a cutter disc and can cut and remove long fibers and soft debris. The three types of impellers are selected based on the medium. The WQ type non-blocking submersible sewage pump can basically cover the common blockage spectra of "domestic sewage + mild industrial wastewater + slaughter and breeding wastewater".
Submersible structure, no need for pump room and saves construction cost: The entire machine is submerged underwater, the motor is self-cooled by the transported medium, no need to build a pump room, no need to fill and draw water, no need to exhaust air. The installation cost is more than 40% lower than that of horizontal sewage pumps, and it is the only solution for scenarios where "a pump room cannot be built" such as underground garages, foundation pits, and catch basins.
Double-end face mechanical seals + oil chamber + triple protection: Two sets of mechanical seals are connected in series (the upper one prevents medium, the lower one prevents the oil chamber), the oil chamber is filled with 32# mechanical oil and serves as both a buffer and leak detection; an underwater water leakage probe is installed in the oil chamber (oil-water emulsification triggers an alarm), and an overheat protection device and winding PT100 are installed in the motor cavity, which can be connected to the control cabinet to achieve "leakage + overheat + overload" automatic protection, and it is feasible without human supervision.

1. The working medium is non-corrosive clear water, and the volume ratio of sand content in the medium does not exceed 0.10%, with a particle size no greater than 0.20mm. 3. The electric pump should be used within the specified range of the rated head. 4. The electric pump should be fully submerged in water, with the diving depth not exceeding 3 meters and the maximum depth not exceeding 5 meters. The electric pump should be 0.5 meters above the water bottom but should not sink into the mud. 5. The power frequency is 50Hz, the single-phase voltage is 220V, the three-phase voltage is 380V, and the voltage fluctuation range is 0.9 - 1.1 times the rated value.
2. The medium temperature does not exceed 40°C, and the pH value of the medium is between 6.5 and 8.5.

Municipal sewage pumping station: Midway elevation of sewage pipelines, combined rain and sewage pumping station, inlet pump rooms of sewage treatment plants (after coarse/fine screens), 50WQ to 300WQ are the main diameter ranges.
Building water supply and drainage: Basement sump of high-rise buildings, drainage of civil defense projects, drainage of underground shopping malls/subway stations, pumps are submerged at the bottom of the pits, float balls automatically control, no need for dedicated personnel.
Sewage tank/separator tank elevation: End elevation of sewage tanks in residential areas, hotels, restaurants, with cutting models, WQK can cut paper, sanitary napkins and other debris and discharge them to avoid blockage downstream.
Slaughterhouse/cattle farm wastewater: Blood and feathers from slaughterhouses, feces and urine from livestock farms contain a large amount of long fibers and suspended solids, WQ vortex or cutting impellers can handle them.

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