Introducing the SOW series, a masterpiece in the world of horizontal single-stage split-casing double-suction centrifugal pumps. This state-of-the-art pump dazzles with its impeccable spectrum, superior model, and outstanding performance. Crafted with an innovative and reliable structure, it is designed for effortless maintenance and boasts an impressive lifespan. The SOW pump family comprises 46 distinct models and 390 basic specifications, offering a prime and modified impeller with cutting-edge technology that delivers a comprehensive performance range. This versatility ensures that the pump meets user demands at any point within the workflow and head. Each pump is meticulously manufactured under stringent quality control, positioning it at the forefront of domestic standards. The series adheres to esteemed standards such as ISO2548C, GB3216C, and GB/T5657, setting a benchmark for excellence.
Our pumps feature a double-suction impeller, ingeniously crafted to minimize axial force. This design, optimized through a cutting-edge CAD hydraulic model, ensures exceptional performance. Additionally, the inclusion of a prototype impeller, along with the option for a modified variant, guarantees adaptability to diverse working conditions, significantly enhancing efficiency.
Expertly engineered to withstand various forces, these pumps incorporate a double volute form, effectively reducing radial force for minimal bearing stress and extended lifespan. Installation is a breeze, with automatic pump cover calibration and adaptable pipeline positioning relative to the motor and pump, tailored to user site requirements. The pump inlet is designed to eliminate swirl, ensuring seamless operation with minimal loss. Precision casting yields an impeccably smooth pump casing and impeller surface, delivering remarkable anti-cavitation properties and heightened 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: Discover the engineering prowess of split-case pumps, renowned as 'between-the-bearings' pumps. These marvels of design feature an impeller mounted on a shaft, ingeniously supported by bearings on both sides, ensuring stability and efficiency.
Double-suction impeller: Uniquely engineered, split-case pumps boast the exclusive double-suction impeller. This design innovation dramatically reduces loads on bearings compared to single-suction counterparts, drawing water symmetrically from both sides for enhanced performance.
High-precision casting impeller: Experience unparalleled performance with our high-precision casting impeller, crafted from premium materials including cast iron, stainless steel, and bronze, ensuring durability and superior functionality.
Packing seals: The tried-and-true packing seals have stood the test of time as the prevalent solution for sealing. These rope-like materials wrap snugly around the pump shaft, minimizing fluid loss. Yet, over prolonged use, wear can increase fluid loss and complicate lubrication and replacement.
Mechanical seals: Favored for applications where leakage is a concern, mechanical seals offer a modern and robust alternative to traditional packing seals. Built to endure, they feature multiple sealing points to significantly reduce leakage, offering superior reliability.
Flexible couplings
Flexible couplings: Ideal for situations with unavoidable drive and pump shaft misalignment, flexible couplings withstand vibrations and thermal expansion, preventing damage. Their ability to reduce noise and protect components leads to long-term maintenance savings, albeit at a higher initial complexity and cost.
Wear-resisting couplings: Our selection includes durable wear-resisting disc couplings and pin couplings, ensuring robust performance and longevity in demanding environments.
This exceptional and versatile Durable Centrifugal Pump with Packing Gland Seal for Flood Protection is an indispensable asset across a multitude of sectors. It plays a crucial role in ensuring seamless urban water supply and effective drainage solutions, serving as the backbone of central heating systems. In addition, it finds essential applications in urban development projects, including airports, and supports robust operations in iron and steel metallurgy companies. The pump is pivotal in oil refineries and power plants, enhancing efficiency and reliability. Paper mills, textile mills, and sugar mills also benefit from its integration, optimizing production processes. Its impact extends to chemical plant operations, ensuring smooth functionality and safety. The pump is an essential component in agricultural irrigation and drainage, ensuring optimal water management. Moreover, its deployment in the air conditioning systems of water supply ensures comfort and reliability. This pump stands as a testament to advanced engineering, designed to excel in various water projects and deliver unmatched performance.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with an array of prominent domestic pump-testing institutions, ensuring top-tier quality and reliability. Our collaborators include:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in the heart of Tiexi District, Shengyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City,
The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, situated in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, based in Shanghai City, among others.
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