The SOW series horizontal single-stage split-casing double-suction centrifugal pump stands as a testament to modern engineering excellence. As the latest evolution of the split-casing double-suction pumps, this series comes packed with exceptional features that cater to a wide array of needs. Boasting a perfect spectrum and a robust model lineup, these pumps deliver outstanding performance marked by innovative, reliable structures that promise easy maintenance and an extended lifespan. With an impressive array of 46 models and 390 basic specifications, the SOW pump is engineered to meet diverse requirements. By employing prime and modified impellers, along with cutting-edge design types, it offers a comprehensive spectrum of high efficiency and a broad performance range, tailored to meet user needs at any operational point with precision and excellence. Manufactured with meticulous attention to detail and adhering to strict quality control protocols, this product proudly attains a leading position domestically. This series of pumps are crafted to conform with ISO2548C, GB3216C, and GB/T5657 standards, ensuring quality and reliability.
Equipped with a double-suction impeller, this design minimizes axial force, enhancing pump stability and reliability. Utilizing a CAD hydraulic model, it optimizes the design for superior performance. The inclusion of a prototype impeller, along with the option for modified impellers, allows adaptation to various working conditions, thereby boosting efficiency across different applications.
Designed with precision, the pump features a double volute form to effectively diminish radial forces, consequently reducing the bearing load and extending operational life. Installation is straightforward, with automatic calibration of the pump cover, while the relative positioning of the motor and pump can be adjusted based on user site requirements. The pump ensures smooth, swirl-free inlet flow, contributing to stable operation and minimized losses. Precision casting techniques render the pump casing and impeller surfaces exceptionally smooth, enhancing anti-cavitation performance and ensuring high 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: These split-case pumps are ingeniously designed as 'between-the-bearings' pumps, which means the impeller is mounted on a shaft, elegantly supported by bearings on both sides. This robust construction ensures smooth and efficient operation.
Double-suction impeller: Among the most noteworthy features of split-case pumps is their double-suction impeller, a rarity in pump design. This innovative impeller significantly reduces loads on the bearings compared to a single-suction impeller, ensuring enhanced durability and efficiency.
Our high-precision casting impeller guarantees exceptional performance, available in premium materials such as cast iron, stainless steel, and bronze, each ensuring superior durability and reliability.
Packing seals have long been the cornerstone of sealing solutions, using advanced rope-like materials that wrap around the pump shaft to minimize fluid loss. However, as the gland packing material wears down over time, it may impact the ease of replacement and may compromise the regular lubrication needed for optimal functionality.
Mechanical seals are the modern choice over traditional packing seals, especially in applications where leakage must be minimized. Known for their resilience, these seals boast multiple sealing points, effectively mitigating leakage risks and offering unmatched durability.
Flexible couplings
Unlike rigid counterparts, flexible couplings adeptly handle movements such as vibrations and thermal expansion without sustaining damage. This makes them perfect for scenarios with some unavoidable misalignment between drive and pump shafts. Their ability to absorb vibrations also reduces excessive noise, though this comes with a more intricate and costly design. Nonetheless, the protection they offer to shafts and bearings from damage and early wear translates into long-term maintenance savings.
We proudly utilize wear-resisting disc coupling or pin coupling, ensuring outstanding performance and longevity.
Discover the versatility and reliability of our Electric Motor Driven Horizontal Centrifugal Water Pump, expertly crafted by Shanghai Semhai Pump Co., Ltd. Engineered for excellence, this powerhouse is indispensable in a wide array of industries. Perfect for urban water supply and drainage, our pump ensures efficient water management for cities. It's a stalwart ally in central heating systems and is instrumental in facilitating smooth operations in iron and steel metallurgy companies. Refineries and paper mills trust its robust performance, while it's a critical component in oil and power plants. As airports undergo construction and expansion, this pump guarantees vital water supply. Chemical plants and textile mills benefit from its seamless integration, and sugar mills rely on its precision operations. It's an essential tool for managing consumer drainage systems in plant mines, offering unrivaled reliability in air conditioning water systems. For agricultural irrigation and a myriad of water projects, this pump stands as a beacon of innovation and efficacy, ensuring optimal water distribution and drainage.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with several prestigious and authoritative pump-testing institutions across the nation, ensuring superior quality and performance in our products. Our esteemed collaborators include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, situated in Zhenjiang City,
The Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, based in Chongqing City,
The Shanghai Mechanical and Electrical Products Quality Inspection Center, right here in Shanghai City, among others.
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