CHANGSHA SANCHANG PUMP CO., LTD.
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The D series Multistage Ring Section Centrifugal Water Pump is a utility-grade, high-pressure, ring section pump with heavy duty, segmental ring, diffuser design. Axial thrust balance device with stacked rotor construction. Suitable for boiler feed pump and high building, long distance water transferring.
It is a radially split, segmented casing, multistage pump designed with modular interstage components. These identical components can be assembled to produce pumps of varying numbers of stages, hydraulics, materials, and configurations to meet the customer’s specific requirements. Its multiple suction nozzle and discharge nozzle orientations allow the D to adapt to multiple piping installations and provide the piping designer with flexibility in plant layout.
Structure Design
Horizontal, radially split, ring section pump with radial impellers, single or double flow entry, multistage. The stages are sealed against each other by O rings or by metallic sealing faces and fastened by tie bolts.
Balancing Device
Thrust compensation by the hydraulic balancing device located at the discharge side. Balancing by disc or double piston.
The balancing device on centrifugal pumps is designed to fully or partially compensate axial thrust generated by the pump rotor. Designs incorporating a single balance drum or double drum require a thrust bearing to absorb the residual thrust.
The difference between a balance disk and a balance drum is whether the primary pressure drop is taken across a radial clearance (drum) or an axial face (disk). Some pumps use a combination drum/disk that incorporates both radial and axial clearances.
Parameters
| Flow Capacity | 30-55 m3/h | Delivery Head | 92-666 m |
| Inlet/Outlet Dia. | DN80/DN80 mm | Working Pressure | ≤ 9.99 MPa |
| Liquid Temperature | 0 - 80 ℃ | Driven By | Electric Motor / Diesel Engine |
| Seal Type | Mechanical seal / Gland packing | Liquid | Clean water or similar |
| Material of Construction | Cast Iron / Cast Steel / S.S304 / S.S316 / Duplex S.S2205 | ||
| Parts Name | Clean Water | Sewage | Hot Water | Corrosive Liquid | Oil Liquid |
| Pump Body | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
| Shaft | Cast Iron | S.S420 | S.S420/42CrMo | S.S630 | S.S420/40Cr |
| Shaft Sleeve | Carbon Steel | S.S420 | S.S304 | S.S316/S.S630/S.S2205 | S.S304/S.S316 |
| Impeller | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
| Wearing Ring | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
| Bearing | China Make/NSK/SKF/Customized | ||||
| Seals | Mechanical Seals/Gland Packing 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.
* Upgrades - with our engineering capabilities we can execute pump modifications to customer specifications of pump designs of most manufactures.
* 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.
Sanchang offers world class custom engineered solutions for the global pumping industry. Offering complete system solutions in multiple markets including Civil Water Supply, Wastewater Handling, Flood Control, Power Generation, Desalination, Maritime, Oil and Gas, Industry, Agricultural Irrigation, and Fire Protection. In addition, Sanchang delivers professional services including installation, maintenance, repair, and training.