Discover the epitome of advanced engineering with our SOW series horizontal single-stage split-casing double-suction centrifugal pump. As the latest iteration in split-casing double-suction pumps, this series boasts a plethora of exceptional features. Experience the harmonious blend of an impeccably crafted spectrum, refined models, and outstanding performance. Our pumps are engineered with an innovative and reliable structure, ensuring easy maintenance and a remarkably long life. Choose from 46 meticulously designed models and 390 fundamental specifications, featuring a prime impeller, modified impeller, and cutting type options. These deliver an extensive spectrum of high efficiency and outstanding performance, catering perfectly to user requirements at any point in the flow and head. Each pump is crafted with precision and subjected to rigorous quality control, propelling it to the forefront of domestic standards. Compliant with ISO2548C, GB3216C, and GB/T5657 standards, this series stands as a paragon of excellence.
Our pumps are equipped with a double-suction impeller to minimize axial force, ensuring optimal performance with CAD-optimized hydraulic models. These innovations deliver superior performance by including a prototype impeller and the flexibility of a modified impeller, allowing adaptation to diverse working conditions and enhancing efficiency to remarkable levels.
Designed for excellence, our pump incorporates a double volute form to minimize radial force, resulting in minimal bearing stress and extended longevity. Installation is effortless with automatic pump cover calibration. The adaptable relative positioning of the motor and pump in relation to the pipeline meets diverse user site requirements. The pumps operate smoothly with swirl-free inlets, ensuring low loss and steady function. Precision casting bestows the pump casing and impeller surfaces with unparalleled smoothness, significantly boosting anti-cavitation performance and optimizing 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: Our expertly crafted split-case pumps are ingeniously designed as 'between-the-bearings' pumps. This unique setup allows the impeller to be gracefully mounted on a robust shaft, comfortably supported by bearings on both sides. This strategic design ensures optimal performance and enhances the durability of the pump, making it a pinnacle of engineering and reliability.
Double-suction impeller: Discover the unmatched efficiency of our split-case pumps, renowned as the sole COMMON pump type featuring a double-suction impeller. This innovative impeller design significantly reduces the loads exerted on the bearings compared to conventional single-suction impellers, which draw water from only one side. Experience remarkable stability and longevity with our advanced double-suction technology.
High-precision casting impeller: Our high-precision cast impellers are meticulously engineered to guarantee exceptional performance. Available in durable materials such as cast iron, stainless steel, and bronze, these impellers are crafted to withstand rigorous operating conditions while delivering consistent results. Trust in our precision to elevate the quality and efficiency of your operations.
Packing seals: For years, packing seals have been the go-to sealing solution, using rope-like materials to snugly wrap around the pump shaft, effectively filling dead space and minimizing fluid loss. However, as time progresses, the gland packing material naturally wears down, potentially increasing fluid loss and compromising lubrication or ease of replacement needed for optimal function. Choose packing seals for traditional reliability with an understanding of their maintenance needs.
Mechanical seals: In various applications where preventing leakage is critical, mechanical seals are preferred over traditional packing seals. Their robust design offers superior durability, handling demanding conditions with ease. By employing multiple sealing points, these advanced mechanical seals virtually eliminate leakage concerns, ensuring a seamless operation and peace of mind.
Flexible couplings
Flexible couplings: Unlike their rigid counterparts, flexible couplings adeptly handle movement such as vibrations and thermal expansion without sustaining damage. Ideal for setups where slight misalignments between drive and pump shafts are unavoidable, they absorb vibrations effectively, thereby reducing operating noise. While they feature a more intricate, costly design, their ability to shield shafts and bearings from damage and wear ultimately leads to maintenance savings over time.
Couplings: Our selection includes wear-resistant disc couplings or pin couplings, designed to provide you with the ultimate balance of resilience and efficiency. Choose from our expertly engineered options to fulfill your pumping needs with confidence.
Our Heavy Duty Diesel Engine Double-Suction Split-Casing Pump for Stationary Use stands as a beacon of engineering excellence, seamlessly integrating into a myriad of vital applications. This remarkable pump is a cornerstone in urban water supply and drainage operations, ensuring the lifeline of cities flows without interruption. It is pivotal in central heating systems, delivering warmth and efficiency with unparalleled precision. In the robust environments of iron and steel metallurgy companies, oil refineries, and paper mills, our pump excels, providing indispensable support for heavy industrial processes. Beyond industry, its applications extend to power plants and airports, vital for maintaining infrastructure and operational excellence. The chemical, textile, and sugar industries benefit from its reliable performance, ensuring smooth processes and productivity. Our pump is also instrumental in plant mines' consumer drainage systems, air conditioning systems for water supply, and agricultural irrigation. Its versatility and robustness make it a trusted partner in diverse water projects, transforming challenges into triumphs.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring and synergistic partnerships with a selection of prominent, large-scale domestic pump-testing institutions, including:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of the Machinery Industry, situated in Zhenjiang City,
The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, based in the dynamic Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, situated in the bustling metropolis of Shanghai.
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