250QW Series Submersible Water Pump for Raw Water Intake and Drainage
QW/WQ series submersible water pump, it is widely used in the raw water in-taking, irrigation, drainage applications, and also widely used in the civil water supply, industrial water delivery, sewage discharge, construction site, mining, etc. It is easy using, simple installation and easy movable.
Submersible pumps are used for a wide range of applications. If you have a small pump around your property or a well pump it is probably a submersible pump. Submersible pumps are also common in sewage applications, raw water pumping applications, and to remove storm water from structures like parking garages.
While submersible pumps are designed to be operated while submerged, in some applications the units are installed in a dry environment called a dry-pit. Since the motors are designed to be water-cooled, in a dry pit application an external source of water must be used to cool the motors.
Sump pumps are used in locations expected to collect water such as in a small basin located in the mechanical room of a large facility, the bottom of a parking garage, or in a small basin in a residential basement. Sump pumps are also sometimes used for irrigation applications where water is drawn out of a lake or river and used for watering.
Performance Range of 200QW Submersible Water Pump
Main Parts Configuration
The pump could be applied to transfer different kinds of liquid by customized wet parts, here followed our recommendation of main configuration:
| Parts Name | For Clean Water | For Sewage | For Corrosive Liquid |
| Pump Case | Cast Iron HT250 | Ductile Iron/Cast Steel | S.S304 |
| Impeller | Cast Iron HT250 | Ductile Iron/Cast Steel | S.S304 |
| Shaft | Carbon Steel 45# | S.S420(2Cr13) | S.S304 |
| Shaft Sleeve | Carbon Steel 45# | S.S304 | S.S304 |
| Bearing | China Make/NSK/SKF | China Make/NSK/SKF | China Make/NSK/SKF |
| Seals | Mechanical Seals | Mechanical Seals | Mechanical Seals |
We offer a variety of service activities
* Installation & Commissioning of complete mechanical and electrical installations on turnkey basis.
* Repair & Maintenance - incidental service visits on location to breakdown repairs and maintenance on a 24-hour contract basis for products made by Sanchang or by any other manufacturer.
* Original spare parts - we provide stock control of spare parts for groups of pumps (total care maintenance). We are able to respond quickly and flexibly thanks to the availability of our own foundry.
* Inspection on site on an incidental or periodic basis.
* Training of our worldwide customers in the field of installation, operation and maintenance.
