The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of modern engineering in pump technology. This latest generation marvel boasts an exquisite spectrum, superior model, and exceptional performance, paired with an innovative and reliable structure, ensuring easy maintenance and a long lifespan. With 46 distinct models and 390 basic specifications, it offers a comprehensive array of prime and modified impeller options. It features a broad-based spectrum, providing unmatched efficiency and a vast performance range to meet diverse user demands across all operational points and pressures. With meticulous manufacturing and stringent quality control, our SOW pumps proudly stand at the forefront of domestic technology standards, conforming to ISO2548C, GB3216C, and GB/T5657.
Designed with a double-suction impeller, this pump minimizes axial force, ensuring optimal performance through a state-of-the-art CAD hydraulic model. Furthermore, the inclusion of a prototype impeller, with the flexibility for a modified version, allows the pump to adapt seamlessly to varying operational environments, boosting overall efficiency and adaptability.
Engineered with a double volute form, the pump effectively minimizes radial force, resulting in reduced bearing stress and extended lifespan. Its installation is remarkably straightforward, featuring automatic calibration of the pump cover. The pump’s in and out pipeline positions relative to the motor can be customized to fit any user site requirements. With a swirl-free inlet, it promises smooth operation and minimal loss. The precision casting of the pump casing and impeller ensures a highly smooth surface, delivering significant anti-cavitation properties and superior 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 remarkable design of split-case pumps, known as 'between-the-bearings' pumps. This innovative engineering places the impeller on a shaft, expertly supported by bearings on either side, ensuring enhanced stability and efficiency.
Double-suction impeller: Split-case pumps stand out as the leading COMMON pump type featuring a double-suction impeller. This advanced design significantly reduces the strain on bearings compared to single-suction impellers, which draw water from one side only.
Admire the high-precision casting of our impeller, crafted to ensure optimal performance. Available in high-quality materials such as cast iron, stainless steel, and bronze, our impeller meets the demands of various applications with excellence.
Packing seals: For years, these have been the go-to sealing solution, utilizing rope-like materials that encircle the pump shaft to minimize fluid loss. However, as these materials wear, fluid loss may increase, potentially affecting lubrication and replacement ease.
Mechanical seals: Favored in diverse applications, these seals are essential when leakage must be avoided. Mechanical seals offer remarkable durability and utilize multiple sealing points, effectively minimizing leakage to enhance performance.
Flexible couplings
Flexible couplings: Unlike their rigid counterparts, these couplings accommodate movement such as vibrations and thermal expansion, making them perfect for situations involving slight misalignments between drive and pump shafts. They excel in absorbing vibrations, reducing operational noise, and though more costly, their design leads to maintenance savings over time by protecting shafts and bearings.
We employ wear-resistant disc couplings or pin couplings for superior performance and longevity.
This exceptional product serves a crucial role in a diverse array of applications including urban water supply and drainage, central heating systems, and emergency response scenarios. Its robust capabilities make it an essential tool for sectors such as iron and steel metallurgy, oil refineries, and the evolving needs of paper mills. Furthermore, it's indispensable for power plants, airports, and the intricate operations of chemical plants. Perfectly suited for textile and sugar mills, it also shines in agricultural settings for irrigation and drainage. From air conditioning system water supply to the complexities of plant mine consumer drainage, this pump is your reliable partner across various water-related projects.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has meticulously built enduring alliances with several prominent domestic pump-testing institutions, renowned across the country for their excellence and precision, such as:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City,
The highly-regarded Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City,
The prestigious Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center based in Shanghai City, among others.
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