The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of modern engineering excellence. As the newest generation in split-casing double-suction pumps, it boasts a flawless spectrum, impeccable design, and remarkable performance. Its structure is both innovative and trustworthy, ensuring effortless maintenance and exceptional longevity. Our current SOW pump is available in an astonishing 46 models and 390 foundational specifications. Utilizing prime impellers, modified variations, and cutting-edge types, it covers a vast spectrum with high efficiency and delivers outstanding performance across a wide range. This ensures that user requirements are met precisely at any desired point in terms of flow and head. Crafted with meticulous precision and subjected to rigorous quality control, this product has attained a leading domestic position. The entire series complies with ISO2548C, GB3216C, and GB/T5657 standards.
Featuring a double-suction impeller, this pump significantly minimizes axial force, enhancing its operational efficiency. The integration of a CAD-optimized hydraulic model ensures the design is superior, delivering excellent performance. Furthermore, the addition of a prototype impeller allows for the use of modified versions to suit varying operational conditions, thereby boosting efficiency and adaptability.
Designed to accommodate various forces, the pump incorporates a double volute form that reduces radial force, resulting in minimized bearing stress and extended lifespan. Installation is straightforward, with automatic pump cover calibration. The relative positioning of the motor, pump inlet, and outlet can be modified to meet specific site requirements. The pump inlet is swirl-free, ensuring smooth operation with minimal losses. Through precision casting, the surfaces of the pump casing and impeller are exceptionally smooth, offering remarkable anti-cavitation properties and enhanced 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 Brilliance: The split-case pumps epitomize the 'between-the-bearings' design, expertly mounting the impeller on a robust shaft, gracefully supported by bearings on either side. This strategic positioning ensures balanced operation and enhances longevity.
Ingenious Double-Suction Impeller: Experience the excellence of split-case pumps, uniquely renowned for their double-suction impeller. This advanced design significantly reduces bearing loads compared to single-suction models, resulting in smoother, more efficient performance.
High-Precision Casting Excellence: Our meticulously crafted impellers, available in cast iron, stainless steel, and bronze, guarantee superior performance and durability through precision casting techniques.
Timeless Packing Seals: The classic packing seal remains a prevalent choice, employing rope-like materials to envelop the pump shaft, filling voids to minimize fluid escape. Although wear may lead to increased fluid loss and hinder lubrication or ease-of-replacement, these seals have been a reliable solution for decades.
Advanced Mechanical Seals: Favored for applications where leakage prevention is paramount, mechanical seals offer unparalleled durability. Engineered to withstand rigorous conditions, these seals utilize multiple sealing points to virtually eliminate leakage concerns, surpassing traditional packing seals.
Dynamic Flexible Couplings
Innovative Flexible Couplings: Unlike their rigid counterparts, flexible couplings adeptly accommodate movement such as vibrations and thermal expansion, preventing damage. Ideal for applications with unavoidable misalignment, they absorb vibrations to reduce operational noise. Although more complex and costly, their protective nature against shaft and bearing damage yields significant maintenance savings over time.
Wear-Resistant Coupling Solutions: We employ wear-resisting disc or pin couplings, ensuring exceptional durability and reliability.
This exceptional product has been masterfully crafted to meet the needs of a diverse range of industries, providing unparalleled performance in urban water supply and drainage systems, central heating operations, and complex industrial environments. Ideal for a plethora of applications, it is a preferred choice for iron and steel metallurgy companies, oil refineries, and paper mills, ensuring seamless operations across various sectors. The versatility extends to power plants, airports, and chemical plants, adapting effortlessly to the demanding requirements of textile mills, sugar mills, and beyond. With its robust design, it excels in consumer drainage systems, integrated air conditioning, and agricultural irrigation, making it an indispensable asset for various water projects.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has fostered enduring and robust partnerships with several prestigious domestic pump-testing institutions, reinforcing our commitment to quality and excellence. These esteemed collaborations include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shengyang City,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, situated in Zhenjiang City,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center, based in Chongqing City,
The Shanghai Mechanical and Electrical Products Quality Inspection Center, nestled in the heart of Shanghai City, among others.
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