The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents a pinnacle of engineering excellence. As the latest evolution in split-casing double-suction pumps, it boasts a meticulously crafted spectrum, a superbly engineered model, and unparalleled performance. Its state-of-the-art structure ensures both innovative reliability and ease of maintenance, promising a long and efficient service life. Our SOW pump line offers a diverse array of 46 models with 390 basic specifications, each finely tuned to perfection. By employing both prime and modified impellers, along with a cutting-edge type, it delivers an extensive spectrum of high efficiency and performance across various applications. This versatility ensures that it precisely meets user needs across any flow and head conditions. Crafted with precision and subjected to rigorous quality control, this product stands at the forefront of domestic pump technology. The SOW series complies with ISO2548C, GB3216C, and GB/T5657 standards, marking its excellence in the industry.
Featuring a double-suction impeller meticulously designed to minimize axial force, this pump utilizes advanced CAD hydraulic modeling to achieve optimal design and remarkable performance. The inclusion of a prototype impeller, along with the option to use a modified impeller, allows it to adapt seamlessly to diverse working conditions, thus enhancing efficiency significantly.
Engineered with precision, the pump integrates a double volute form that expertly reduces radial force, ensuring minimal bearing stress and extending the lifespan of the components. Installation is effortless with automatic calibration of the pump cover, and the relative positioning of the motor and pump allows for flexible adaptation to user site requirements. Designed for smooth operation, the pump inlet is free from swirl, ensuring low loss and stability. Through precision casting, the surfaces of the pump casing and impeller are exceptionally smooth, providing outstanding anti-cavitation characteristics 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, a marvel of engineering, fall under the category of "between-the-bearings" pumps. This sophisticated design ensures that the impeller is mounted seamlessly on a shaft, securely supported by bearings on both sides, offering unparalleled stability and performance.
Double-suction impeller: Split-case pumps boast the distinctive feature of a double-suction impeller, a rarity among common pump types. This innovative impeller design significantly reduces bearing loads compared to conventional single-suction impellers, which draw water from only one side. Experience superior efficiency and longevity with our advanced double-suction impeller technology.
Our high-precision casting impeller guarantees exceptional performance and durability, crafted from premium materials such as cast iron, stainless steel, and bronze. This meticulous engineering ensures that our impellers withstand the test of time and rigorous applications, providing unmatched reliability.
Packing seals have been a cornerstone of sealing solutions for numerous years. These seals employ rope-like materials meticulously wrapped around the pump shaft, effectively filling voids and minimizing fluid loss. Although they are traditional, wear over time can lead to increased fluid loss, potentially impairing lubrication and ease-of-replacement, vital for optimal functioning.
Mechanical seals, the modern marvels of sealing technology, are favored over traditional packing seals in a myriad of applications where leakage prevention is paramount. Renowned for their durability, mechanical seals are engineered to withstand significant operational challenges. By utilizing multiple sealing points, they substantially mitigate leakage, ensuring seamless operation.
Flexible couplings
Flexible couplings, a sophisticated alternative to rigid couplings, adeptly accommodate movement such as vibrations and thermal expansion without sustaining damage. Ideal for scenarios with unavoidable misalignment between drive and pump shafts, these couplings excel at reducing excessive noise and protecting the mechanism from premature wear. Their intricate design may come with a higher initial cost, but they promise substantial maintenance savings and enhanced durability.
We incorporate wear-resistant disc couplings or pin couplings, chosen for their superior performance in demanding conditions.
Our Powerful Double-Suction Split-Casing Pump for Emergency Water Supply is an essential cornerstone in a multitude of industries and projects, reflecting its incredible versatility and reliability. Seamlessly integrated into urban water supply and drainage systems, it ensures the smooth operation of central heating and cooling systems, promoting comfort in urban settings. The pump is a vital component for iron and steel metallurgy firms, paper mills, and oil refineries, underscoring its industrial significance. It plays a crucial role in power plants and airport construction, ensuring efficiency and safety. Chemical plants and textile mills benefit from its robust design, while sugar mills and additional chemical facilities rely on it for seamless operations. Versatile enough for plant mines and consumer drainage systems, it also deftly manages the demands of air conditioning systems and agricultural irrigation projects. Its unrivaled performance in various water management projects speaks volumes of its unparalleled reliability and efficacy, making it a trusted choice.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. proudly boasts of forging deeply-rooted and enduring partnerships with some of the most prestigious domestic pump-testing institutions. Our network of collaborations extends to the following esteemed establishments:
National Quality Supervision and Inspection Center of Industrial Pumps, located in the dynamic Tiexi District of Shengyang City, where excellence in pump assessment is a standard,
Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, nestled in the innovative city of Zhenjiang, known for its rigorous quality benchmarks,
Ministry of Agriculture’s Water Pump Quality Supervision and Testing Center in Chongqing City, synonymous with agricultural innovation and precision,
Shanghai Mechanical and Electrical Products Quality Inspection Center, right in the heart of Shanghai City, renowned for its meticulous quality control processes, and more.
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