The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of pump technology. As the latest generation in split-casing double-suction pumps, it boasts an exceptional array of features including a comprehensive spectrum, superb design, and outstanding operational performance. With a pioneering and reliable structure, these pumps offer easy maintenance and a remarkably long lifespan. Our current SOW pump collection encompasses an impressive 46 models and 390 basic specifications. Employing both prime and modified impellers, alongside cutting-edge technology, this series offers an extensive and efficient performance range, adeptly meeting the unique requirements of users in terms of work flow and pressure head. Meticulously crafted, this product exemplifies superior quality control, achieving a domestic leading level in the industry, and adheres to the highest standards of ISO2548C, GB3216C, and GB/T5657.
Equipped with a double-suction impeller, this pump minimizes axial force, ensuring stable and efficient operation. Harnessing a CAD hydraulic model, it optimizes the design for unparalleled performance. Alongside the prototype impeller, the option of a modified impeller is available, allowing adaptation to various working conditions, significantly boosting efficiency.
Designed with a double volute form to counteract radial force, the pump ensures minimal bearing stress and a prolonged operational life. Installation is straightforward with automatic calibration of the pump cover, and the relative positioning of the pipeline inlets and the motor can be adjusted to meet site-specific requirements. With a swirl-free inlet, smooth operation, and low energy loss, this pump is engineered for high performance. The precision casting of the pump casing and impeller results in smooth surfaces, offering remarkable anti-cavitation properties and enhancing overall 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 Excellence: Discover the ingenious design of our split-case pumps, renowned for their 'between-the-bearings' configuration. This cutting-edge design securely positions the impeller on a shaft, meticulously supported by bearings on both sides, ensuring optimal performance and longevity.
Revolutionary Double-Suction Impeller: Our split-case pumps are distinguished as the only common pump type featuring a double-suction impeller. This innovation dramatically reduces the burden on bearings compared to single-suction impellers, enhancing efficiency and reliability for unparalleled performance.
Precision-Crafted Impellers: Our high-precision casting process ensures superior performance. Choose from robust materials like cast iron, stainless steel, and bronze for impellers engineered to perfection, promising durability and efficiency.
Traditional Packing Seals: A Time-Tested Solution - Packing seals have been the go-to sealing method, employing rope-like materials that wrap snugly around the pump shaft to minimize fluid loss. However, over time, increased fluid loss may occur as the gland packing material wears, potentially affecting lubrication and ease of replacement.
State-of-the-Art Mechanical Seals: For applications where leakage is unacceptable, mechanical seals are the superior choice. With enhanced durability and resilience, these seals utilize multiple sealing points to virtually eliminate leaks, providing a robust and reliable solution surpassing traditional packing seals.
Adaptable and Resilient Flexible Couplings
Enhance Your System with Flexible Couplings: Unlike their rigid counterparts, flexible couplings effortlessly accommodate movements such as vibrations and thermal expansions, safeguarding against damage. Ideal for applications with inevitable misalignment, they expertly absorb vibrations, reducing noise and ensuring quieter operation. Despite a more intricate design and cost, they yield maintenance savings by protecting shafts and bearings from undue wear.
Superior Coupling Solutions: We utilize advanced wear-resisting disc couplings or pin couplings for maximum durability and efficiency.
Unlock the ultimate versatility with our High Efficiency Diesel Engine Split-Casing Pump for Surface Water. This exceptional product caters to a vast array of applications, ensuring seamless operations across diverse sectors. Perfect for urban water supply and drainage, it seamlessly integrates into central heating and drainage systems. It's a staple in iron and steel metallurgy companies, oil refineries, and paper mills. Discover unmatched reliability in oil, power plants, and airport construction projects. Ideal for chemical and textile plants, sugar mills, and beyond, it supports both power plant and drainage systems. Enhance plant mines consumer drainage and optimize air conditioning water supply systems. Trust it for agricultural irrigation, drainage, and a variety of water projects, delivering excellence and efficiency every step of the way.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd has forged long-standing partnerships with several prestigious domestic pump-testing institutions, ensuring the highest quality and reliability. These collaborations include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City, which is renowned for its rigorous standards,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industry in Zhenjiang City, known for its meticulous attention to detail,
The Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, a leader in agricultural pump testing,
And the Shanghai Mechanical and Electrical Products Quality Inspection Center, situated in Shanghai City, which is synonymous with excellence and innovation.