Horizontal Ring Section Self-Balancing Multistage Centrifugal Mining Water Pump MD200-50X7P(1480rpm)
Description
ZD series self-balancing multistage ring section centrifugal mining water pump is a innovative product which designed to remove the mechanical balance drum, balance disc, balance socket and related parts, and achieve the balancing function by reverse circulation water pipe.
The external bypass reverse pipe system is designed for water re-flushing, it will make the water flowing directly into the end of the pump from the suction side, and then return to the discharge section at the middle of the pump, the axial force will be balanced by water flowing from both sides of the discharge section.
It will balance the axial thrust caused by the high pressure impeller from both sides and escape the mechanical wears out as well as overloaded axial force of the traditional multistage pump, and ensure the stability and endurability of the pumpset.
Features
Improved design
Versatile mechanical configuration and a redesigned fire stage suction impeller make it easy to integrate into high pressure applications, with the high suction capabilities needed for rigorous hot water or condensate demands.
Suction Impeller
The first stage suction impeller that is engineered with a wider inlet diameter reducing of the velocity of the liquid for reduced friction and increased suction capability.
Parameters
| Flow Capacity | 132-240 m3/h | Delivery Head | 198-544 m |
| Inlet/Outlet Dia. | 200mm/200 mm | Working Pressure | ≤ 8.16MPa |
| Liquid Temperature | 0 - 120 ℃ | 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 |

Main Parts Configuration
The MD/ZD series self-balancing multistage ring section centrifugal mining water pump could be applied to transfer different kinds of liquid by customized wet parts, here followed our recommendation:
| 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 |
Applications
* boosting in General Industries of chemical process
* boiler water feeding
* Food & beverage
* Sewage Treatment Plant
* Marine & offshore
* Sea Water Desalination
* Petrochemical processing
* Clear liquids
* Commercial water supply, High building water supply
* Mining water discharge
* Supper long distance water transferring
We offer a variety of service activities:
* Remote online supporting and diagonosis. Onsite consulting before & after sales.
* 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.
* Training of our worldwide customers in the field of installation, operation and maintenance.

