The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of modern engineering in split-casing double-suction pump technology. This state-of-the-art product offers an unparalleled spectrum, boasting an excellent model and delivering outstanding performance. It features an innovative and reliable structure that ensures easy maintenance and a remarkably long lifespan. Our esteemed SOW pump line includes 46 models and 390 basic specifications. With its prime impeller and optional modified impeller, alongside its cutting-edge design, it covers a broad spectrum and achieves high efficiency and superior performance across its range. It is meticulously crafted and subjected to rigorous quality control, positioning it at the forefront of domestic technology. This exceptional series of pumps adheres to ISO2548C, GB3216C, and GB/T5657 standards.
Featuring a double-suction impeller, this pump is designed to minimize axial force, utilizing a CAD-optimized hydraulic model to achieve the best performance. The original prototype impeller is complemented by a modified version, allowing adaptability to diverse working conditions and enhanced efficiency.
Engineered with a double volute form to efficiently handle forces, this pump minimizes radial force, thereby extending the lifespan of its bearings. It is designed for easy installation and automatic calibration of the pump cover. The relative positioning of the motor's inlet and outlet pipelines can be customized to meet user site requirements. With a swirl-free pump inlet, it ensures smooth operation and minimal loss. Precision casting results in an exceptionally smooth surface for both the pump casing and impeller, amplifying its 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: Discover the engineering marvel of split-case pumps, categorized as 'between-the-bearings' pumps. This innovative design positions the impeller on a shaft, which is expertly supported by bearings on either side, ensuring remarkable stability and performance.
Double-suction impeller: Revel in the uniqueness of split-case pumps, the quintessential pump type featuring an advanced double suction impeller. This ingenious design significantly reduces the load on bearings compared to single-suction impellers, which draw water from only one side, enhancing durability and efficiency.
Our high-precision casting impeller is a testament to excellence, crafted to ensure peak performance. Available in robust materials like cast iron, stainless steel, and bronze, it guarantees reliability and longevity.
Packing seals have stood the test of time as the go-to sealing solution, employing rope-like materials to wrap around the pump shaft, curbing fluid loss. While effective, they may wear down over time, leading to increased leakage and potentially hindering lubrication and easy replacement.
For those seeking a superior alternative, mechanical seals offer unmatched durability and are preferred in situations where leakage must be minimized. These advanced seals feature multiple sealing points, virtually eliminating leakage and surpassing traditional packing seals in reliability and endurance.
Versatile Couplings
Flexible couplings: A sophisticated alternative to their rigid counterparts, flexible couplings are adept at handling movements such as vibrations and thermal expansion without sustaining damage. Perfect for scenarios with inevitable misalignment between drive and pump shafts, they also excel at dampening excessive noise. Although they are more complex and costly, the protection they provide to shafts and bearings from damage and early wear translates to significant maintenance savings over time.
Our selection includes wear-resisting disc coupling or pin coupling, each engineered for durability and performance.
This remarkable product finds its application across a broad spectrum of industries, making it an indispensable component in urban water supply and drainage systems. Its versatility extends to serving central heating systems, ensuring efficient fluid movement in iron and steel metallurgy companies, and optimizing operations at oil refineries. It supports seamless functions in paper mills, power plants, and airport construction projects, while also meeting the demands of chemical plants, textile mills, and sugar mills. Furthermore, it plays a crucial role in consumer drainage systems at plant mines and enhances the performance of air conditioning systems' water supply. Ideal for agricultural irrigation and various water projects, this product is a cornerstone of reliability and efficiency across diverse sectors.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. is proud to have fostered long-standing collaborative partnerships with a selection of renowned domestic pump-testing institutions, ensuring top-tier quality and performance for our products:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shengyang City, known for its rigorous standards.
Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, a benchmark for excellence in machinery inspection.
Ministry of Agriculture's Water Pump Quality Supervision and Testing Center in Chongqing City, a leader in agricultural equipment testing.
Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, a respected authority in electrical product evaluation, among others.
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