Jiangsu Du'an Environmental Protection WQ100-5-3 Sewage Lift Pump

Bore diameter: 100mm

10-meter YCW type underwater sealed cable

Cast Iron

380V voltage requirement

Duane WQ100-5-3 sewage lifting pump structure and performance description:

· Bearings: SelectedSKF Bearings orNSK Bearings, properly configured bearings, extend the pump's service life.

·Motor: Motor forF Grade A insulation, higher operating temperature155°C, Protection Grade:IP68。

· Mechanical Seals: Utilize two mechanical seals in series, operating independently, to isolate the motor from the pump, providing dual protection for the motor.

·Impeller: Transports liquids with greater efficiency at better flow rates and speeds, preventing clogs.

· Pump Housing: Made ofCAD/CAM Technology ensures the pump body has high efficiency and low wear.

·Shaft: The pump and motor are coaxial, with shaft end sealing devices to prevent the shaft from contacting the pumped medium, thereby protecting the shaft from corrosion.

·The shaft extension design is kept as short as possible to reduce the deflection of the rotating shaft, minimize vibration, extend the service life of the mechanical seals and bearings, and lower operating noise.

· Monitoring System: The stator is equipped with three series-connected thermal control switches.

At room temperature, it is in a "normally closed" state; when the stator temperature reaches125At ℃, the switch is turned on.

· The oil chamber is equipped with a leak detection probe for water leakage detection. In the event of a mechanical seal leak on the pump side, the oil-to-water ratio in the oil chamber

At a certain concentration, the oil-water probe emits an alarm signal (the indicator light illuminates) and automatically cuts off the power, stopping the pump.

· Buoy Switch: In the event of mechanical seal leakage on the motor side, liquid entering the buoy switch chamber, and the infiltrated liquid reaching a certain height, the buoy switch will emit an alarm signal (indicating light) and stop the pump, prompting maintenance personnel to inspect and replace the mechanical seal on the motor side.

·The assembly includes an electric motor, impeller, pump housing, and pump cover, etc.

· The pump housing features a mounting foot for stable installation and operation.

Primary Structure

WQSubmersible sewage pumps feature bold innovation in overall structure and hydraulic model design, incorporating and absorbing advancements from both domestic and international sources.Advanced Technology: Unique cable sealing design with dual-sealed protection for watertight cables and cold-pressed joints, eliminating the risk of water entering the cables. AdvancedMotor cooling design – water jacket cooling system, which implements natural circulation cooling through high and low-pressure water pipes; rotor and impeller are subjected to dynamic balance testing to ensure smooth operation; large-diameter hydraulic component design ensures unobstructed passage of particles of a certain size, featuring certain anti-blocking and anti-tangling functions; high-precision mechanical seals inMinimized mechanical wear while ensuring practical sealing effects; multiple protective features enhance the reliability of the submersible sewage pump's operation.

Wastewater Lift Pump Installation and Commissioning

1Before Installation:

（1You must carefully read the user manual to avoid misuse and damage to the machine. Ensure the pump selection is accurate.

Is the actual usage condition consistent with the specified usage condition?

（2Clear pools or waterways, remove construction debris, and check if the low water level in the intake pool meets the equipment installation requirements.

（3Should be performed by a qualified electrician, using0~500VMegohmmeter(High-voltage electric motor for0~2500VMegohmmeter)Ensure the motor main cable three-core wire-to-ground cold-state insulation resistance is not less than5Megaohm(The insulation resistance of high-voltage motors must not be less than32Megaohm)Prohibit the use of a megohmmeter to inspect control cables to prevent damaging the electrical components inside the pump, and instead, use a multimeter to check the control cable wires.

（4Ensure voltage is checked within the rated voltage ± as indicated on the label.5%Within the specified range. If the power source is located at a distance from the pump's usage area.

At greater distances, account for line losses by increasing the cable's cross-sectional area. Minimize joints as much as possible, and seal the joints for optimal performance.

Waterproof; Additionally, for ease of maintenance and inspection, it is recommended to set up a terminal box adjacent to the machine.

（5The pump is equipped with a dedicated control cabinet. Please carefully read the manual before use and check if the equipment wiring is correct, if the starting mechanism is smooth, if the contacts are good, if the metal housing of the starting equipment is reliably grounded, check for any loose connections at all wiring points, and retighten each one again.

（6The power cable, ground wire, and control cable on the pump should be connected to the terminal blocks of the control cabinet (box) one by one.

（7The grounding wire of the pump is a two-color wire (yellow)./Green), it is mandatory to connect securely for safety assurance.

（8Check the motor's rotation direction. Before the initial installation and start-up of the water pump, or after each reinstallation, the rotation direction should be checked. The method is: momentarily start the water pump and observe if the impeller's rotation direction matches the one indicated on the label. If the rotation direction is not consistent, simply swap the positions of any two phases in the three-phase wiring. If multiple water pumps are connected to the same control cabinet or terminal box, each pump must be checked individually.

（9When using a float switch for automatic control of the pump, the water inflow to the pool and the pump's outflow should be calculated to determine the pump's hourly operation according to regulations.Multiple start-ups determine the on/off position of the float ball pump.

Jiangsu Du'an Environmental Protection Submersible Pump Automatic Coupling Installation:

Jiangsu Du'an Environmental ProtectionSubmersible pumps are typically installed using an automatic coupling (hereinafter referred to as auto-coupling) method. The auto-coupling system mainly consists of quick connectors, drainage bases, guides, and guide mounting brackets. During installation, the pump body and quick connector are tightly connected with bolts. The drainage base is first secured to the pool with anchor bolts, and the quick connector then moves the pump along the guides, automatically coupling with the drainage base through the auto-coupling sealing surface. Once installed, the entire pump body and motor section are connected together via the pump's outlet and inlet flanges. The connection between the pump's outlet and the auto-coupling base is sealed with a rubber gasket. The submersible pump is suspended in the air via the auto-coupling system, and its own weight presses the gasket tightly, ensuring reliable sealing between pipes.