Introducing the SOW series horizontal single-stage split-casing double-suction centrifugal pump, the pinnacle of modern engineering in the world of pumps. This latest generation marvel boasts a flawless spectrum, excellent model, and extraordinary performance. It features an innovative, reliable structure that ensures effortless maintenance and an extended lifespan. Our current SOW pump lineup includes 46 models and 390 basic specifications, designed with cutting-edge impeller technology. By utilizing both prime and modified impellers, along with advanced cutting types, this range offers a comprehensive spectrum of high efficiency and performance. It is meticulously crafted to cater precisely to user demands at any point along the flow and head spectrum. Thanks to rigorous manufacturing standards and impeccable quality control, our product stands at the forefront of domestic innovation. The series adheres to ISO2548C, GB3216C, and GB/T5657 standards, assuring you of its esteemed quality and reliability.
Equipped with a double-suction impeller that minimizes axial force, this pump employs a CAD hydraulic model to optimize design for superior performance. It includes a prototype impeller and can be fitted with a modified impeller to suit various operational conditions, thus enhancing its efficiency.
Designed with precision, the pump features a double volute form to minimize radial force, resulting in reduced bearing load and increased longevity. Installation is a breeze with automatic calibration of the pump cover, and the relative positioning of the motor and pump can be easily adjusted to meet user site requirements. The pump inlet is engineered for smooth operation without swirl, ensuring minimal loss and seamless performance. Through precision casting, both the pump casing and impeller surfaces are rendered exceptionally smooth, delivering impressive anti-cavitation capabilities and heightened 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 marvel of our split-case pumps, known for their exceptional design as 'between-the-bearings' pumps. In this configuration, the impeller is strategically mounted on a shaft, expertly supported by bearings on both sides, ensuring stability and optimal performance.
Double-suction impeller: Our split-case pumps boast a unique advantage with their double-suction impeller, a hallmark feature not commonly found in other pump types. This innovative design significantly reduces the load on the bearings compared to single-suction impellers, where water is drawn in from only one side. Experience the efficiency and reliability of double-suction technology!
High-precision casting impeller: Ensuring impeccable performance, our impeller is crafted with high-precision casting techniques. Available in materials such as cast iron, stainless steel, and bronze, these impellers promise durability and exceptional efficiency.
Packing seals: Historically, packing seals have been the go-to sealing solution, utilizing rope-like materials that envelop the pump shaft to minimize fluid escape. However, over time, as the gland packing wears down, fluid loss may rise, potentially hindering proper lubrication and ease of replacement. Our advanced design addresses these challenges for sustained efficiency.
Mechanical seals: When it comes to preventing leakage, mechanical seals are the superior choice over traditional packing seals in various demanding applications. These modern seals are built to withstand greater challenges, employing multiple sealing points to virtually eradicate leakage concerns, offering durability and enhanced reliability.
Flexible couplings
Flexible couplings: Unlike their rigid counterparts, flexible couplings are engineered to tolerate and adapt to slight movements, such as vibrations and thermal expansion, without sustaining damage. Ideal for scenarios where minor misalignment between drive and pump shafts is present, these couplings can effectively absorb vibrations, thereby reducing operational noise. Although they feature a more intricate and costly design, the long-term maintenance savings due to enhanced protection of the shaft and bearings make them a worthwhile investment.
We utilize wear-resistant disc coupling or pin coupling for enhanced durability and performance.
The Efficient Diesel Engine Powered Centrifugal Pump from Shanghai Semhai Pump Co., Ltd. is a versatile powerhouse designed to excel in a multitude of demanding scenarios. It offers unparalleled performance in urban water supply and drainage systems, providing essential support for both residential and municipal water needs. Its robust capabilities extend to central heating systems and drainage for enhanced comfort and safety in urban environments. This exceptional pump serves iron and steel metallurgy companies, ensuring the seamless flow of essential liquids crucial for industrial processes. It is indispensable in oil refineries and paper mills, where its reliability ensures smooth operation and maximized productivity. The pump is a trusted ally in the energy sector, supporting power plants and airport construction projects with unwavering efficiency. In the realm of chemical production, textile manufacturing, sugar processing, and more, this pump stands out, delivering consistent and precise performance. From plant mines to consumer drainage systems, it is the linchpin of effective fluid management. It is equally adept at serving air conditioning systems, agricultural irrigation, and diverse water projects, making it an integral solution across a wide array of applications.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged prestigious and enduring partnerships with a multitude of prominent domestic pump-testing institutions. These esteemed collaborations ensure unparalleled quality and reliability for our offerings. Our partners include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in the renowned Tiexi District of Shengyang City, where standard excellence is a tradition,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, situated in Zhenjiang City, a beacon of precision and trust,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center, based in the dynamic city of Chongqing, is synonymous with stringent quality assurance,
The Shanghai Mechanical and Electrical Products Quality Inspection Center, nestled in the vibrant heart of Shanghai City, stands as a paragon of mechanical and electrical excellence, among others.
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