The SOW series is our flagship line of horizontal single-stage split-casing double-suction centrifugal pumps, representing the epitome of modern engineering in pump design. This latest generation is crafted with an impeccable spectrum and superior model that promises exceptional performance. Its innovative and dependable structure ensures ease of maintenance and an extended lifespan, making it a prime choice for various applications. Proudly, the SOW series boasts 46 versatile models and 390 basic specifications, offering a wide array of options to perfectly cater to your specific requirements. With its advanced design incorporating both prime and modified impellers, this pump delivers a remarkable performance spectrum, ensuring high efficiency at any desired point of operation. Thanks to meticulous manufacturing and rigorous quality control, this series achieves a domestic leading standard. The pumps align with ISO2548C, GB3216C, and GB/T5657 standards, affirming their global excellence.
The design triumphs with its double-suction impeller, effectively minimizing axial force for enhanced reliability. Utilizing a CAD hydraulic model, the pump is optimized for peak performance, effortlessly adapting with prototype and modified impellers to suit various working conditions, thereby boosting efficiency.
Our pumps feature a double volute structure, meticulously crafted to minimize radial forces, ensuring smaller bearing loads and extended longevity. Installation is a breeze with self-aligning pump covers, while customizable inlet and outlet positions provide flexibility to meet site-specific requirements. Experience smooth, swirl-free pump operation with minimal losses, thanks to precision-cast components featuring exceptionally smooth casings and impellers. This results in outstanding anti-cavitation capabilities and superior 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: Split-case pumps, renowned for their innovative design, are referred to as 'between-the-bearings' pumps. This configuration allows the impeller to be strategically mounted on a shaft, which is ingeniously supported by bearings on both sides, ensuring optimal performance and balance.
Double-suction impeller: Among the most common pump types, split-case pumps stand out with their sophisticated double-suction impeller. This ingenious design minimizes the load imposed on the bearings, compared to traditional single-suction impellers that draw water from only one side. This results in enhanced efficiency and longevity of the pump.
With high-precision casting capabilities, our impellers guarantee outstanding performance. Available in cast iron, stainless steel, and bronze, these materials ensure durability and reliability, meeting the highest industry standards.
Packing seals have long been favored as a reliable sealing solution, utilizing rope-like materials to wrap around the pump shaft, effectively filling gaps and minimizing fluid loss. However, it's important to note that as time passes, the gland packing material may wear down, potentially increasing fluid loss and impairing lubrication or ease of replacement, compromising proper functionality.
In diverse applications where leakage must be avoided, mechanical seals surpass traditional packing seals. These advanced seals are engineered for superior durability, designed to endure extensive use. By employing multiple sealing points, mechanical seals effectively mitigate leakage issues, offering peace of mind and reliability.
Flexible couplings
Flexible couplings, unlike their rigid counterparts, are engineered to accommodate some degree of movement, such as vibrations and thermal expansion, without incurring damage. Ideal for applications requiring a degree of misalignment accommodation, they effectively absorb vibrations, substantially reducing operational noise. Despite a more complex and costly design, flexible couplings provide long-term maintenance savings by protecting shafts and bearings from premature wear.
We implement wear-resisting disc couplings or pin couplings, ensuring robust performance and durability in our pump systems.
The High Efficiency Cast Iron Horizontal Water Pump for Fire Fighting Solutions is a powerhouse of versatility and reliability, making it an indispensable asset across a multitude of industries and applications. Its robust design ensures seamless operation in urban water supply and drainage systems, providing a continuous flow of water with utmost efficiency. Perfectly suited for central heating systems, this pump facilitates optimal temperature regulation while handling drainage needs effortlessly. In the industrial sphere, it serves critical roles in iron and steel metallurgy operations, oil refineries, and paper mills, ensuring smooth and uninterrupted processes. The pump is a trusted choice for intricate water management in oil and power plants, as well as in the construction of airports where precision is key. Chemical plants and textile mills benefit from its durable performance, while sugar mills and other food processing industries rely on its consistent delivery of water. Additionally, it plays a crucial role in complex drainage systems within plant mines and is a vital component in air conditioning water supply networks. Its efficiency extends to agricultural irrigation, providing essential support for crop production and land management. In every application, this pump stands as a beacon of engineering excellence, meeting the diverse water sourcing and drainage demands of various projects with unmatched reliability.
Professional Cooperation Agencies: Partnering with only the best, Shanghai Semhai Pump Co., Ltd. joins hands with top-notch institutions to guarantee unparalleled quality and innovation in our solutions.
This company has established long-term cooperation relationships with a number of large domestic pump-testing institutions, such as: At Shanghai Semhai Pump Co., Ltd., we pride ourselves on robust partnerships with leading domestic pump-testing institutions, fortifying our commitment to quality and innovation.
National Quality Supervision and Inspection Center of Industrial Pumps (Tiexi District, Shengyang city): Our alliance with the renowned National Quality Supervision and Inspection Center ensures that every pump emerges as a symbol of reliability and efficiency.
Irrigation Machinery Products Quality Inspection Center of Machinery Industrial (Zhenjiang City): Collaborating with the esteemed Irrigation Machinery Products Quality Inspection Center, we uphold the highest standards of quality and performance.
Ministry of Agriculture, Water Pump Quality Supervision and Testing Center (Chongqing city): Engaging with the Ministry of Agriculture’s premier Water Pump Quality Supervision and Testing Center, we assure top-tier quality for our sophisticated water pump solutions.
Shanghai Mechanical and Electrical Products Quality Inspection Center (Shanghai city) and so on: Our partnership with the Shanghai Mechanical and Electrical Products Quality Inspection Center and others speaks volumes about our dedication to excellence in engineering and product development.
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