The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of contemporary pump engineering. As the latest generation, it boasts an impeccable spectrum, an exemplary model, and exceptional performance. Its innovative and robust structure promises easy maintenance and remarkable longevity. The current SOW pump offers an impressive array of 46 models and 390 basic specifications. Featuring both prime and modified impellers, this pump delivers a wide-ranging performance spectrum, achieving high efficiency tailored to meet every user's needs in terms of flow and head specifications. Crafted with precision and upheld by stringent quality control, it stands as a beacon of domestic excellence. This series adheres to ISO2548C, GB3216C, and GB/T5657 standards, ensuring top-tier performance.
Designed with a double-suction impeller, the pump minimizes axial force, ensuring superior hydraulic performance. Utilizing a CAD-optimized hydraulic model, it achieves an exceptional design and unmatched efficiency. The addition of a prototype impeller and the option for a modified version make this pump adaptable to various operational demands, further enhancing its efficiency and versatility across different conditions.
Engineered with precision, the pump features a double volute form, reducing radial force and extending bearing lifespan. Installation is a breeze, with automatic pump cover calibration, and adaptable pipeline positions for both motor and pump, accommodating site-specific requirements. The pump inlet ensures a swirl-free, smooth operation with minimal losses. Precision casting ensures a sleek pump casing and impeller surface, delivering remarkable anti-cavitation performance and peak 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 Marvel: Our split-case pumps are epitomes of innovation, known as "between-the-bearings" pumps. This engineering marvel strategically mounts the impeller on a shaft, which is meticulously supported by bearings on both sides, ensuring superior balance and stability.
Double-Suction Impeller Excellence: Unique to split-case pumps, the double-suction impeller is a hallmark of engineering ingenuity. Unlike its single-suction counterparts, this design dramatically reduces load on the bearings by drawing water in from both sides, ensuring seamless operation and enhanced durability.
Precision-Crafted Impellers: Our high-precision casting impellers guarantee unmatched performance. Available in sturdy cast iron, sleek stainless steel, and robust bronze, these impellers are designed to meet and exceed rigorous standards.
Reliable Packing Seals: Traditionally, packing seals have dominated sealing solutions, using resilient rope-like materials to wrap around the pump shaft, minimizing fluid loss. However, as these materials wear, increased fluid loss might impair lubrication or ease of replacement, requiring timely maintenance for optimal performance.
Advanced Mechanical Seals: Favored in varied applications to prevent leakage, mechanical seals stand out for their durability and resilience. Engineered to withstand more stress, these cutting-edge seals utilize multiple sealing points to virtually eliminate leakage, ensuring reliable and efficient performance.
Versatile Flexible Couplings
Innovative Flexible Couplings: Unlike their rigid counterparts, flexible couplings excel in accommodating movements such as vibrations and thermal expansions without damage. Ideal for applications with inevitable misalignment, they effectively dampen vibrations and reduce noise. Though complex and costlier, they offer long-term savings by safeguarding shafts and bearings from premature wear.
We Incorporate Wear-Resistant Disc or Pin Couplings for Durability.
This versatile product finds extensive application across a diverse range of industries and services. It is an invaluable asset for urban water supply and drainage systems, central heating systems, and is pivotal in urban infrastructure development. It serves the needs of major industrial sectors including iron and steel metallurgy companies, oil refineries, and paper mills, ensuring seamless operations. Additionally, it supports the vital functions of power plants, airport construction projects, and chemical plants. Textile mills, sugar mills, and other chemical facilities also benefit from its efficiency. The pump plays a crucial role in air conditioning water supply systems and bolsters agricultural irrigation and drainage efforts. It is an indispensable component in various water projects, providing reliable performance and enhancing productivity across these numerous applications.
Esteemed Cooperation with Professional Agencies
Shanghai Semhai Pump Co., Ltd. has proudly forged enduring partnerships with several prominent domestic pump-testing powerhouses. These collaborations underscore our unwavering commitment to quality and innovation, including:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps located in Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of the Machinery Industry in Zhenjiang City,
The esteemed Ministry of Agriculture's Water Pump Quality Supervision and Testing Center based in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center in the vibrant city of Shanghai, among others.
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