QW Series Submersible Sewage Pump

Description of Submersible Sewage Pump Model :

Application

1. Wastewater drainage in factories , construction sites and commercial facities
2. Drainage system in municipal sewage treatment plants Drainage station in residential quarters
3. Municipal projects
4. Methane pools and field irrigation in countryside

Pump

1. Max immersion depth : 5m ( 0.75-5.5kw-4p ) , 20m ( 7.5kw-2p / 5.5-45kw-4p )
2. Cable length : 7m
3. Max liquid temperature : up to + 50℃
4. Liquid PH value : 5-9
5. Max liquid density : 1.3x10³ kg /m³
6. Allowed by the particle diameter : 20-80 mm
7. Voltage : 50HZ/3 phase
8. Water leakage&overload protection is optional

Motor

1. Copper winding
2. Insulation class :F ( 0.75-110kw-4p )
3. Protection class : IP68
4. Motor protection : built in
5. Efficiency Class: default IE3

Models

Performance Graph

Product Features of submersible sewage pump

1. Unique diving cable seal sign to prevent water motor, epoxy resin and rubber sheath stripping copper cable directly sealed to ensure no liquid infiltrated the motor through the cable core intrusion, and wiring for the plug type, wiring fast, convenient and reliable ;But the end of the cable can not contact with water, water into the cable will seriously reduce the insulation resistance of the cable. affecting the safety of the motor:

2. The design of non-clogging impeller has excellent performance, stability, maturity, and strong passing capacity. The impeller has been verified by dynamic and static balance, with low vibration and balanced operation.

3. Motor F class insulation, enclosure protection class IP68 Power,the main shaft of the motor is very short design.that makes the operation of the sewage pump to be steady meanwhile reduced the vibration of the pump  and the loading of the bearing,prolong the service life of the bearing.

4. The shaft seal is two independent single-end mechanical seals, which completely seal and isolate the motor from the pump. It is installed up and down in series, providing double safety, further improving the reliability of the seal and ensuring the long-term reliable operation of the pump.

5. The upper bearing adopts rolling bearing, which can bear axial and radial loads and completely separate from the medium conveyed by the pump;

6. The lower bearing is a maintenance-free heavy-duty double-row angular joint ball bearing, which can reliably withstand the radial and axial forces generated by the operation of the Water Pump, ensure the correct position of the impeller in the volute, and have a long service life. Below 7.5 kw the bearing brand NSK, 7.5KW upper, C&U( Chinese top brand.)