QZ Series Submersible Axial Flow Pumps

The QZ series axial flow pump utilizes the thrust generated by the impeller's rotation in water to lift it. As the water enters and exits the impeller along the axial direction, this type of pump is called an axial flow pump.

Axial flow pumps are categorized into three types based on the installation of the pump shaft: vertical, horizontal, and inclined, with their structures being largely similar. Currently, vertical axial flow pumps are most widely used. The main components include: trumpet pipe, impeller, guide vane body, discharge elbow, shaft and bearing, stuffing box, etc.

Installation method for in and out water channels

Inlet Flow Rate: The pump's minimum immersion depth in the liquid should be greater than the value shown in the recommended installation drawing of the sample's shape.

2. Exit Method: Flap door or other methods.

3. Installation Methods: Bend Tube Suspension, Well Casing Suspension, Concrete Research Well Casing.

Motor

Diving Motor

Power Rating: Electrical performance specifications comply with GB756

Protection Level: IP68

Cooling Method: ICWO8A41

Basic Installation Type: IM3013

Voltage Grades: ≤355kW, 380V or 660V

＞355 kW, voltage 380V, 660V, 6kV, 10kV

Insulation Grade: F

Rated Frequency: 50Hz

Cable Length: 10m

Axial Seal

There are two or three mechanical seals. The first, which comes into direct contact with water, is typically silicon carbide. The second and third are generally graphite on silicon carbide.

Leak Protection

The QZ and QH series pumps are equipped with anti-leakage protection sensors. In case of water leakage into the oil chamber, motor cavity, or junction box, the sensors will trigger an alarm or shut down, retaining the fault signal.

Overheat Protection Device

Overheat protectors are installed in the submersible motor windings, which will trigger a signal or shut down when the temperature exceeds the specified limit.

Steering

Viewed from above the motor, the blades rotate in a clockwise direction.

Section II: Application Range of Axial Flow Pumps

The QZ series submersible axial flow pumps and the QH series submersible mixed flow pumps are widely used in agricultural and industrial water conveyance, urban water supply, mild sewage discharge, and water transfer projects.

Section 3: Operating Conditions of Axial Flow Pumps

Clear water and other liquids similar to clear water, not exceeding 50°C.