S/SH Split Case Pump
Product Description
The S and SH split case pumps are a single-stage, double-suction, horizontal centrifugal pumps used for the transportation of clean water or other liquids with similar properties, with maximum temperatures of 80˚C.
The suction and discharge ports of S and SH pumps are both located below the pump’s shaft centerline, the horizontal direction is perpendicular to the axis, and the pump casing and center are opened. There is no need to disassemble the water inlet, discharge pipe, or the motor during maintenance. When viewed from the direction of the coupling, the water pump rotates counterclockwise.
The main parts of S and SH centrifugal split case pumps are the pump body, pump cover, impeller, shaft, double-suction seal ring, shaft sleeve, and bearing, all of which are composed of cast iron, except for the shaft, which is made of high-quality carbon steel. The pump body and pump cover form the working chamber of the impeller. Pipe screw holes for installing a vacuum and pressure gauge are made on the water inlet and outlet flanges, and water pipe screw holes are made on the lower part of the water inlet and outlet flanges.
The impeller is statically balanced and fixed with the sleeve and sleeve nuts on both sides. Its axial position can be adjusted by the sleeve nut. The axial force of the impeller is balanced by the symmetrical arrangement of its blades. There may be some leftovers. The remaining axial force is borne by the bearings at the coaxial end. The pump shaft is supported by two single-row radial ball bearings. The bearings are installed in the bearing bodies at both ends of the pump body, and lubricated with “butter.” The double-suction seal ring is used to reduce water leakage from the pump pressure water chamber back to the water suction chamber.
The circulation pump is directly driven by the motor through the coupling. The shaft seal is a soft packing seal. In order to cool and lubricate the seal cavity and prevent air from leaking into the pump, there is a water seal ring between the fillers. When the pump is in operation, a small amount of high-pressure water flows into the packing cavity through the water seal tube to serve as a water seal.
Product Features
Main Application
- Large flow capacity, high efficiency.
- Easy operation and maintenance.
- Long operational life- The life of the pump casing should extend to at least 30 years, with a pressure threshold of up to 10MPa.
- The location of the inlet and outlet flange of the split case pump can be custom placed upon request.
- The shaft, impeller, shaft sleeve, and sealing ring can be composed of a selection of different materials according to the working conditions, including cast iron, cast steel, and stainless steel (SS304, SS410, etc.).
- Seal method: machinery seal and packing seal varieties available.
This model centrifugal split case pump is suitable for use in power plant, mining, city, and coal-water feeding and discharging, farmland irrigation and drainage, and all hydraulic engineering.
The Main Parameters
| Flux | 112~2600 m³/h |
| Lift | 9~140m |
| Motor Power | 18.5~850kw |
| Product Standard | GB/T5656-94 |
Split Case Pump Live Application
Pump Selection Guide
Export Slurry Pump, Chemical Pump, Split Case Pump, Sand Pump
Real Results from Real Mining Operations
FGD System — Thermal Power Plant (800MW Unit)
Flue Gas Desulfurization (FGD) slurry service is widely recognized as one of the most demanding applications in power plant operations, involving highly corrosive and abrasive limestone-gypsum slurries under continuous-duty conditions.
An 800MW thermal power unit required a reliable pumping solution capable of withstanding long-term exposure to aggressive FGD environments while maintaining stable performance and minimizing maintenance frequency.
The client selected Minerco rubber-lined slurry pumps for critical FGD circulation duties.
Application Scope:
FGD slurry circulation in thermal power generation
Handling corrosive limestone slurry with fine abrasive particles
Continuous operation in large-scale (800MW) unit
Performance After 18+ Months of Operation:
Excellent resistance to corrosion and abrasion due to advanced rubber lining
Stable and reliable operation under continuous load conditions
Extended service life with reduced wear on internal components
Lower maintenance frequency compared to previous solutions
Operational Benefits:
Improved reliability in one of the harshest slurry environments
Reduced total cost of ownership through extended wear life
Enhanced system stability for uninterrupted power generation
Client Feedback:
“FGD slurry service is one of the most demanding applications. Minerco’s rubber-lined pumps have performed excellently in our 800MW thermal unit for 18+ months.”
