Introducing our groundbreaking SOW series — a stunning evolution in horizontal single-stage split-casing double-suction centrifugal pumps. This latest generation marvel is distinguished by its impeccable spectrum, sleek model, and unparalleled performance. With a design that marries innovation and reliability, it promises effortless maintenance and enduring longevity. Currently, our SOW series boasts an impressive lineup of 46 models and 390 foundational specifications, ensuring a comprehensive selection to suit every need. Harnessing the power of both prime and modified impellers, alongside cutting-edge designs, our pumps deliver a wide-ranging spectrum of high efficiency and performance. Carefully crafted and subjected to stringent quality control, this series not only meets but surpasses domestic leading standards. Proudly aligning with ISO2548C, GB3216C, and GB/T5657 standards, these pumps are engineered to exceed expectations in every operational aspect.
Embrace the innovation of our double-suction impeller, meticulously crafted to minimize axial force, thereby ensuring exceptional stability and performance. Utilizing advanced CAD hydraulic modeling, we have optimized the design for superior efficiency. The choice of prototype or modified impellers allows for seamless adaptation to varying operational conditions, enhancing overall efficiency and performance.
Our pumps are designed with a double volute to effectively diminish radial forces, resulting in minimized bearing stress and extended lifespan. Installation is a breeze, with automatic pump cover calibration ensuring consistent alignment. The flexible design allows for adaptable positioning of motor and pump relative to the pipeline to meet specific site requirements. Thanks to precision casting, the pump casing and impeller boast an impeccably smooth surface, delivering exceptional anti-cavitation properties and high efficiency. Experience seamless, swirl-free operation, and enjoy the benefits of low energy loss and unparalleled 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 marvel: Split-case pumps proudly stand as the quintessential example of 'between-the-bearings' engineering. This innovative design ensures the impeller is securely mounted on a shaft, which is expertly supported by bearings on both sides. This configuration guarantees optimal balance and stability, enhancing the pump's performance and longevity.
Double-suction impeller brilliance: Amongst pump types, split-case pumps shine uniquely with their exceptional double-suction impeller. This design innovation imposes significantly less stress on the bearings compared to a single-suction impeller, which draws in water from only one side. The result is a graceful reduction in operational strain, promising a longer lifespan and enhanced reliability.
Our high-precision casting impeller assures unmatched performance, crafted meticulously in materials such as robust cast iron, sleek stainless steel, and elegant bronze. This attention to detail guarantees exceptional durability and effectiveness.
Packing seals, a time-tested sealing solution, have long been a staple for minimizing fluid loss by ingeniously wrapping rope-like materials around the pump shaft. However, over time, as gland packing material wears, fluid loss may increase, potentially affecting lubrication or the ease of replacement necessary for optimal function.
In applications demanding leak-free performance, mechanical seals outshine traditional packing seals. Renowned for their durability, these seals are engineered to withstand significant wear and tear. Utilizing multiple sealing points, basic mechanical seals effectively address leakage issues, ensuring a seamless, reliable operation.
Versatile Couplings
Flexible couplings offer a sophisticated solution over their rigid counterparts, adeptly accommodating movements such as vibrations and thermal expansion while preventing damage. Ideal for scenarios with inevitable misalignment between drive and pump shafts, these couplings absorption of vibrations leads to quieter operations. Although more complex and costly, their ability to shield shafts and bearings from harm results in substantial maintenance savings over time.
Our commitment to durability shines with the use of wear-resisting disc coupling or pin coupling, tailored for peak performance and longevity.
Experience the unmatched versatility of our High Efficiency Fire Pump with Electric Motor for Industrial Use. This exceptional product is expertly engineered to service a wide array of demanding applications, including but not limited to: urban water supply and drainage systems, ensuring your city runs smoothly; central heating systems and drainage, providing comfort and efficiency; iron and steel metallurgy companies and oil refineries, where robust performance is essential; paper mills, oil industries, and power plants, guaranteeing reliable operations; and airport construction, where precision and dependability are crucial. Furthermore, our pump excels in chemical plants, textile mills, sugar mills, and various consumer drainage systems, delivering unparalleled support. Also ideal for air conditioning systems of water supply, agricultural irrigation, drainage, and a myriad of other water projects, this pump is your go-to solution for comprehensive and efficient water management needs.
Strategic Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has cultivated robust, long-term partnerships with an array of eminent domestic pump-testing authorities, fostering an environment of excellence and precision. Our partners include:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps (Tiexi District, Shengyang City), renowned for its rigorous standards and state-of-the-art assessment techniques.
The reputable Irrigation Machinery Products Quality Inspection Center of Machinery Industrial (Zhenjiang City), well-known for its meticulous quality inspections.
The distinguished Ministry of Agriculture, Water Pump Quality Supervision and Testing Center (Chongqing City), recognized for its comprehensive quality assurance processes.
The prestigious Shanghai Mechanical and Electrical Products Quality Inspection Center (Shanghai City), celebrated for its exceptional quality evaluation and assurance practices, among others.
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