Introducing the SOW series horizontal single-stage split-casing double-suction centrifugal pump: a marvel of engineering excellence. This latest generation pump boasts a perfect spectrum of features, complemented by an outstanding model design and superior performance. Enjoy an innovative, reliable structure that promises ease of maintenance and a long service life. Our SOW pump line-up includes an impressive 46 models and 390 base specifications. Utilizing both prime and modified impellers, as well as cutting-edge designs, it offers an extensive range of high efficiency and adaptable performance across various specifications, catering precisely to user requirements across diverse flow and head conditions. Meticulously manufactured under stringent quality controls, our pump has set a benchmark, achieving a leading position within domestic markets. This distinguished series adheres to ISO2548C, GB3216C, and GB/T5657 standards.
Experience minimized axial force with our double-suction impeller, an epitome of CAD hydraulic model optimization delivering peak performance. Enhance adaptability to varying working conditions with the integration of both prototype and modified impellers, thereby boosting overall efficiency.
Engineered with precision, our pumps feature a double volute structure to significantly reduce radial forces, ensuring minimal bearing stress and prolonged operational life. Simplified installation and automatic pump cover calibration make setup effortless, while adaptability to specific site requirements is ensured by flexible inlet and outlet configurations. Benefit from swirl-free pump inlets that foster smooth operation with minimal losses. Through precision casting, the pump casing and impeller surfaces are exquisitely smooth, offering remarkable anti-cavitation properties and exceptional efficiency.
| Pump Speed |
298,372,490,585,740,990,1480 and 2950rpm; |
| Motor Voltage |
380V/415V, 3.3KV, 6KV and 10KV; |
| Caliber |
80-1600mm;(flange dimensions conform GB/T17241.6-1998) |
| Flow range |
68-30000m3 / hr |
| Head range |
6-230m; |
| Temperature range |
Medium maximum temperature ≤80'C, ambient temperature ≤40'C; |
| Maximum operating pressure (inlet pressure + pump pressure) |
1.0Mpa (G) (Hsp75m) or 1.6Mpa (G) (Hsp75m);Special configuration of up to 2.5Mpa (G); |
| Transmission medium |
Water or other liquids physical and chemical properties similar to water; |
| Seal plumbing parts |
No installment when inlet pressure above 0.03Mpa (G) |
| Structural Design |
Single-stage double-suction volute axial centrifugal pump, horizontal installation, driver (motor or engine) may be set on the left or right side of the pump (ie, outlet-oriented, the driver is counterclockwise in the left side, clockwise in the right side). |
Between-the-bearings: Discover the engineering mastery of split-case pumps, renowned for their 'between-the-bearings' design. This innovative construction positions the impeller on a shaft, which is expertly supported by bearings on either side. This sophisticated arrangement ensures stability and optimal performance, making it a standout choice in pump technology.
Double-suction impeller: Unique in its class, split-case pumps boast a double-suction impeller, a design feature that distinguishes it from other common pumps. This double-suction design significantly reduces the load on bearings compared to single-suction impellers, which draw water exclusively from one side, ensuring longer-lasting durability and efficiency.
The high-precision casting impeller guarantees unparalleled performance, available in robust materials such as cast iron, stainless steel, and bronze. This precision ensures reliability and efficiency in every operation.
Packing seals remain the cornerstone of sealing solutions, thanks to their rope-like materials that snugly wrap around the pump shaft, filling gaps and minimizing fluid escape. However, over time, wear and tear can increase fluid loss, affect lubrication, and challenge maintenance ease, posing potential operational hurdles.
Mechanical seals have eclipsed traditional packing seals in a host of applications, especially where leakage must be thwarted. Known for their durability and resilience, mechanical seals employ multiple sealing points to practically eradicate leakage, offering superior reliability and longevity.
Flexible couplings
Flexible couplings, unlike their rigid counterparts, are engineered to handle movement, such as vibrations and thermal expansion, without sustaining damage. This makes them perfect for scenarios with unavoidable misalignment between drive and pump shafts. Their ability to absorb vibrations also reduces operational noise. While they feature a more complex and costly design, their protective benefits for shafts and bearings translate into significant maintenance savings over time.
Our design incorporates wear-resistant disc or pin couplings, ensuring durability and optimal performance in demanding environments.
Discover the diverse and essential applications of our Robust Diesel Engine Water Pump for Fire Fighting Applications, offered by Shanghai Semhai Pump Co., Ltd. This exceptional product is adeptly engineered for extensive use across a myriad of sectors. It efficiently serves urban water supply systems, ensuring reliable drainage and supply for modern cities. Additionally, it is an integral component in central heating and drainage systems, and further finds its place in the rigorous environments of iron and steel metallurgy companies. Oil refineries, paper mills, and power plants can greatly benefit from its robust performance. It plays a pivotal role in airport construction, chemical plants, textile and sugar mills, as well as in agricultural irrigation and drainage. Our diesel engine water pump is also a crucial element in plant mines consumer drainage systems, air conditioning systems, and a variety of water-intensive projects, delivering the unmatched efficiency and dependability that your enterprise demands.
Professional Cooperation Agencies
Our esteemed company, Shanghai Semhai Pump Co., Ltd., has forged enduring partnerships with numerous esteemed domestic pump-testing institutions, ensuring unparalleled quality and performance. These collaborations include prominent organizations such as:
The renowned National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City,
The prestigious Ministry of Agriculture's Water Pump Quality Supervision and Testing Center, situated in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, located right here in Shanghai City, among others.
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