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Product Overview:
The QX‑N series submersible electric pump is an energy‑efficient, dry‑type, three‑phase induction motor–pump unit in which the motor and a multi‑stage centrifugal pump are coaxially integrated. Its internal‑mounting design features two independent, hard‑wearing, double‑seal mechanical seals between the pump and the motor, while oil‑resistant rubber O‑rings provide static sealing at all mating surfaces. Water flows from the impeller, through the guide vanes, into the annular space between the motor housing and the pump casing, and then exits via the top discharge port, providing effective cooling for the motor. Consequently, the pump must not operate with its shaft above the water surface; it can even be used to pump out all the water. The pump’s rotating shaft is chrome‑plated to resist wear and corrosion and to facilitate impeller maintenance and removal. The motor employs Class B insulation, and models rated at 5.5 kW or less are equipped with protective devices that automatically disconnect the power supply in case of phase loss, overload, or overheating, thereby safeguarding the motor. A robust cable waterproof entry ensures that even if the cable is damaged or its ends become submerged, water cannot penetrate the motor; moreover, ambient moisture or condensation cannot be drawn into the motor through gaps in the cable conductors, preventing insulation degradation.
Product用途:
This series of electric pumps offers an exceptionally broad range of flow rates and head capacities, making them suitable for extracting groundwater from wells as well as for water‑lifting projects in rivers, reservoirs, and other applications. They effectively address the needs of agricultural irrigation and domestic water supply in low‑water‑level areas across northern and western China, including plateaus and mountainous regions. Additionally, they can be used for drainage in non‑explosive‑hazardous mine tunnels and for general water supply and drainage purposes.
Terms of Use:
1. The medium temperature shall not exceed 40°C.
2. The pH of the medium is between 6.5 and 8.5.
3. The volume fraction of solid impurities in the medium shall not exceed 0.1%, and the particle size shall be no greater than 0.2 mm.
4. The AC power supply has a rated frequency of 50 Hz and rated voltages of 220 V single-phase and 380 V three-phase, with voltage…
5. The diving depth shall not exceed 5 m.
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