30 HP Submersible Sewage Pump, 3 Phase

Industrial sewage pump with 30 hp rated power and 380V rated voltage. Motor according to the use of the water jacket external circulation cooling system, to ensure that the submersible sewage pump in the state of no water safe operation.

Features:

• Reasonable design, reasonable matching motor, high efficiency.
• Cast iron sewage pump with compact structure, small volume, easy to move, easy to install, no need to build pump room.
• Double guide rail automatic coupling installation system, to the sewage pump installation and maintenance has brought great convenience.
• Large flow channel anti-clogging hydraulic parts design, greatly improve the ability of sewage through, can effectively through the sewage pump diameter of 5 times the fiber material and the diameter of about 50% of the industrial sewage water pump diameter solid particles.
• Mechanical seal adopts double series seal, material is hard corrosion resistant tungsten carbide, durable, wear-resistant, can make the submersible sewage pump safe continuous operation for more than 8000 hours.

Specification:

• Model: 65WQ30-75-22
• Rated Power: 30 hp (22 kW)
• Rated Voltage: 380V (Please contact us if you need other voltage)
• Rated Flow: 30 m³/h
• Rated Head: 75m
• Inlet Size: 3 inch
• Caliber: 65 mm
• Underwater Penetration (Max): 30m
• Motor Phase: 3 phase
• Body Material: Cast iron
• Rotate Speed: 2900 r/min
• Outlet Pressure: 0.1 MPa
• Weight: 400 kg

Submersible Sewage Pump Structure:

Tips: Sealing Technology of Sewage Pump

The so-called auxiliary impeller hydrodynamic seal refers to the installation of an open impeller in the opposite direction near the rear cover of the impeller of the pump. When the pump works, the auxiliary impeller rotates with the pump spindle, and the liquid in the auxiliary impeller will rotate together. The rotating liquid will produce an outward centrifugal force, which on the one hand resids the liquid flowing to the mechanical seal and reduces the pressure of the mechanical seal.

On the other hand, it prevents the solid particles in the medium from entering the friction pair of mechanical seal, reduces the wear of the grinding block of mechanical seal, and prolongs its service life. In addition to sealing, auxiliary impeller can also play a role in reducing the axial force.