SH/S Double-Suction Split Centrifugal Pump

SH, S double-suction split centrifugal pumps
Products overview

SH/S series are single-stage double-suction horizontal split centrifugal pumps for distribution of water and liquid similar to water in physical and chemical properties. The highest temperatures of the liquid should not exceed 80 Celsius degree, and allowable inlet pressure is ≤ 0.3Mpa. The performance meets JB/1050-93 standard, that is Single-stage Double-suction Water Centrifugal pumps and basic parameter standard. The pump is suitable for waterworks; Air-condition recycling water, building water supply, farmland drainage and irrigation, grain age pump station, power station water supply system, fire-fighting system and other occasions need liquid conveying.
View from motor, SH pumps make anticlockwise rotation and S pumps make clockwise rotation. The shaft seal of the pump is generally soft packing seal. Mechanical seal can be adopted as well if there are special requirements.
Performances range
Flow volume: 30-6500m3/h
Head: 8-140m
Medium temperature: -20º C-+80º C
Environment temperature: ≤ 40 º C

Design characteristics
The inlet and outlet are all below shaft axis of the water pump and in horizontal direction with vertical axis. The pump casing is split in middle. When check and repair the pump, the sucking and discharge pipes, motor and other prime motor are not necessary to be dismantled.
The main components are: Pump casing, pump cover, impeller, shaft, double suction seal ring, shaft sleeve, bearings etc. The shaft material is high-quality carbon steel and others are cast with cast iron which can be replaced by different material according to different medium.
Pump casing and pump cover from the impeller working chamber; There's pipe thread of vacuum gauge and pressure gauge in the inlet and outlet flange; Pipe thread of discharging water is under the flange.
By static balance testing, the impeller is fixed by shaft sleeve and sleeve nuts on both sides. Its axial position can be adjusted by sleeve nuts. The axial force of impeller can reach balance by the symmetrical arrangement of blades, and the remainder axial force can be supported by bearings on shaft end.
Pump shaft supported by two separate radical ball bearings; Bearings are installed in the bearing bodies in the two ends of pump, lubricated by grease. Double suction seal ring can be used to decrease the leakage of impeller water.
The pump rotates by connecting with motor directly via an elastic coupling and need set another support when adopting V-belt rotation.
Shaft seal is packing seal; In order to cool and grease seal cavity and avoid air leaking in, there's packing ring amount the packing ring among the packing. When the water pump is working, a little water with high pressure can be conveyed to the seal cavity by the trapezoid groove in the split surface on the pump cover and have the water seal effect.