Behold the SOW series, a marvel in engineering excellence! This horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of modern pump technology. As the latest generation, it boasts a perfect spectrum of capabilities, an impeccable design, and unparalleled performance. The innovative and reliable structure ensures easy maintenance and extends the longevity of the pump. Currently, our SOW lineup includes 46 distinct models and 390 fundamental specifications. With the advanced prime impeller, modified impeller, and cutting-edge designs, this series provides a comprehensive spectrum of high efficiency and unmatched performance to seamlessly meet any operational requirement in terms of flow and head. Meticulously crafted with stringent quality control, our product has achieved a leading position in the domestic market. The SOW pump series rigorously adheres to ISO2548C, GB3216C, and GB/T5657 standards.
Experience an engineering breakthrough with our double-suction impeller, meticulously designed to minimize axial force. Utilizing CAD hydraulic modeling, the pump's design is optimized for superior performance. A prototype impeller enhances adaptability to diverse working conditions, and the option of a modified impeller further boosts efficiency, ensuring peak operational excellence.
Key design elements ensure extraordinary performance: the double volute pump form minimizes radial forces, enhancing bearing longevity and reliability. Installation is a breeze with automatic calibration of the pump cover. The in-and-out pipeline's relative position can be adjusted according to user site requirements, ensuring seamless integration. With a swirl-free inlet, this pump offers smooth, low-loss operation. Precision casting delivers a pump casing and impeller surface that are remarkably smooth, providing exceptional anti-cavitation performance and high efficiency. Every aspect of the pump’s design works harmoniously to exceed user expectations and deliver unrivaled performance.
| 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 Artistry: Behold the engineering marvel of split-case pumps, renowned as 'between-the-bearings' pumps. These exquisite pumps showcase an impeller mounted on a shaft that's expertly supported by bearings on either side, ensuring stability and efficiency throughout operation.
Double-Suction Impeller Excellence: Revel in the distinctiveness of split-case pumps, celebrated for their double-suction impellers. This innovative design significantly minimizes the load on bearings compared to single-suction impellers, offering unparalleled performance and longevity.
High-Precision Casting Impeller: Achieve peak performance with our high-precision casting impellers crafted from superior materials like cast iron, stainless steel, and bronze. This meticulous design guarantees optimal functionality and durability.
Packing Seals: Trusted for Years: Packing seals, with their rope-like materials enveloping the pump shaft, have long been a trusted solution to curb fluid loss. Yet, over time, wear can lead to increased leakage and potential lubrication issues, impacting overall performance and ease of maintenance.
Mechanical Seals: The Superior Choice: In applications where eliminating leakage is crucial, mechanical seals are preferred over traditional packing seals. These robust, multi-point sealing solutions offer enhanced durability and significantly reduce the risk of leakage, making them indispensable for reliable pump operation.
Flexible Couplings: Solutions for Dynamic Conditions
Flexible Couplings: For Dynamic Applications: Distinct from their rigid counterparts, flexible couplings adeptly accommodate movement, such as vibrations and thermal expansions, without sustaining damage. Ideal for settings with unavoidable misalignment between drive and pump shafts, they absorb vibrations and reduce noise, offering maintenance savings despite their complex design.
Exemplary Use of Wear-Resisting Disc or Pin Couplings: Our commitment to durability and performance is evident in our selection of wear-resisting disc or pin couplings, engineered for maximum efficiency and longevity.
This versatile and robust product is extensively utilized across a broad spectrum of industries and applications. It serves as a critical component in urban water supply and drainage systems, ensuring seamless and reliable water management in cities. Additionally, it plays a key role in central heating systems and drainage, providing efficient solutions for residential and commercial buildings. In the industrial sector, the product is indispensable for iron and steel metallurgy companies, oil refineries, and paper mills, where it handles the demanding requirements of fluid transportation. It is a vital asset in oil and power plants, facilitating smooth operation and safety. The product also supports infrastructure development, being integral to airport construction and chemical plants. Moreover, it finds applications in textile mills, sugar mills, and other chemical plants, contributing to effective operations and productivity. Its utility extends to power plants, plant mines, and consumer drainage systems, where it ensures efficient water handling and disposal. The product is also a cornerstone in air conditioning systems, agricultural irrigation, and diverse water projects, underscoring its versatility and reliability in addressing varied water management needs.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. prides itself on forging long-standing partnerships with several premier domestic pump-testing institutions, ensuring the highest quality standards in the industry. Our trusted partners include:
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 Machinery Industry, based in Zhenjiang City,
The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center situated in Chongqing City,
The well-regarded Shanghai Mechanical and Electrical Products Quality Inspection Center, located in the vibrant city of Shanghai, and many more.
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