Tongyi Machinery
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The WQ(D)S stainless steel precision casting sewage submersible pump adopts a stainless steel precision casting shell, which has the characteristics of no pollution and corrosion resistance, expanding the application field of water supply and drainage. The impeller adopts a closed double channel design, which increases its service life due to symmetrical channels, good balance, smooth operation, and low vibration. The flow passage has strong passing capacity, and the measured efficiency is higher than the national standard, which saves energy and reduces consumption.
The designed submersible motor has IP68 protection level and F insulation class, with good diving cooling effect, low temperature rise, and long insulation life. Over-current protectors are installed below 7.5kW to ensure that the motor can automatically cut off power in case of abnormal situations.
It adopts a fluorine rubber double end mechanical seal, with an external skeleton oil seal below 7.5kw, and two to three series mechanical seals for motor shaft seals above 11kW, forming multiple reliable sealing lines. One is in the medium inside the pump, effectively preventing water from entering the oil chamber, and the other is in the oil chamber to prevent oil from entering the motor chamber. The oil chamber is filled with suitable mechanical oil, while lubricating and cooling the friction surfaces of the two independent machine seals, making the machine seal work more reliable.
Some water pumps have special cable manufacturing processes that can completely prevent water from entering the motor through the small gaps between the wires when the cable skin is damaged or the front end of the cable is submerged in water.
According to customer requirements, a mixing device can be equipped, which generates extremely strong mixing force with the rotation of the motor shaft, stirring the sediment in the sewage tank into suspended solids and discharging them.
