Introducing the SOW series: the pinnacle of modern engineering in horizontal single-stage split-casing double-suction centrifugal pumps, crafted by Shanghai Semhai Pump Co., Ltd. Experience the revolutionized pump design that flaunts a perfect spectrum and an impeccable model, promising unparalleled performance. With an innovative and reliable structure, maintaining this pump is effortless, ensuring a prolonged operational life. Our SOW pump range includes an impressive array of 46 models and 390 basic specifications. Marvel at the prime and modified impeller designs that facilitate high efficiency and a comprehensive performance range, adeptly meeting user requirements across various points in the work flow and head. Manufactured with precision and rigorous quality controls, this top-tier product proudly stands at the forefront of domestic technology. Complying with the prestigious ISO2548C, GB3216C, and GB/T5657 standards, this series embodies excellence.
Optimized for ultimate efficiency, our double-suction impeller is ingeniously designed to minimize axial force. Employing advanced CAD hydraulic modeling, we have achieved the optimal design for superior performance. The inclusion of a prototype impeller allows for the use of a modified impeller, expertly accommodating different working conditions and further enhancing efficiency. This is precision engineering at its finest.
Built to withstand the rigors of demanding conditions, our pump features a double volute form, tactically reducing radial force and bearing pressure, thereby extending its lifespan. Installation is a breeze with automatic calibration of the pump cover. Flexibility is key, as the relative positions of the inlets and outlets of the pipeline, motor, and pump can be adjusted to suit user site requirements. Enjoy smooth, swirl-free pump inlets, ensuring low loss and seamless operation. Precision casting delivers a pump casing and impeller surface that are exceptionally smooth, offering outstanding anti-cavitation performance and remarkable 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: Experience the extraordinary with split-case pumps, celebrated as "between-the-bearings" pumps. This innovative design ensures the impeller is mounted on a robust shaft, masterfully supported by bearings on both sides, enhancing performance and reliability.
Revolutionary Double-Suction Impeller: Split-case pumps stand out as the quintessential choice with their unique double-suction impeller. This design elegantly minimizes the loads on bearings, unlike single-suction impellers that draw water from just one side. Enjoy heightened efficiency and reduced wear and tear.
Impeccable High-Precision Casting: Our impellers, crafted with meticulous precision, deliver unparalleled performance. Available in premium materials such as cast iron, stainless steel, and bronze, each impeller ensures durability and excellence.
Enduring Packing Seals: Time-tested packing seals have long been the cornerstone of sealing solutions. These rope-like materials snugly embrace the pump shaft, expertly minimizing fluid loss. Although wear may eventually occur, advanced maintenance can sustain their operational prowess.
Advanced Mechanical Seals: Elevate your expectations with mechanical seals, the superior alternative to traditional packing seals. Engineered for durability, they excel in preventing leakage, utilizing multiple sealing points for nearly flawless performance. They are indispensable in applications where leakage must be meticulously avoided.
Innovative Flexible Couplings
Dynamic Flexible Couplings: Unlike their rigid counterparts, these couplings adapt to movement, such as vibrations and thermal expansion, ensuring seamless operations even with slight misalignments between drive and pump shafts. They effectively dampen vibrations, reducing noise, and, despite their sophisticated design and cost, they offer significant maintenance savings by safeguarding shafts and bearings.
Wear-Resistant Disc or Pin Couplings: For optimal performance and longevity, we implement wear-resisting disc or pin couplings, ensuring durability and reliability in every application.
Our Premium Stainless Steel Fire Pump with Double-Suction Technology is expertly engineered to cater to a vast array of water management needs. Its unparalleled versatility makes it an essential asset in urban water supply and drainage systems, central heating infrastructures, and sophisticated urban hydro networks. This robust pump is a stalwart player in iron and steel metallurgy, providing indispensable support in oil refineries, paper mills, and power plants. It is the backbone of airport construction projects, seamlessly integrating into chemical manufacturing plants, textile mills, and sugar mills. Elevate your projects with its reliable performance in power plant applications, deftly managing drainage, and optimizing plant mine consumer systems. It ensures a consistent supply in air conditioning systems and is a cornerstone in agricultural irrigation, drainage, and various critical water projects. This pump is your go-to solution for virtually every water supply challenge, offering unmatched reliability and efficiency.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring alliances with several premier domestic pump-testing organizations. These esteemed partnerships include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in the dynamic Tiexi District, Shenyang City,
The Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, located in the thriving Zhenjiang City,
The Ministry of Agriculture's Water Pump Quality Supervision and Testing Center, residing in the strategic hub of Chongqing City,
And the renowned Shanghai Mechanical and Electrical Products Quality Inspection Center, situated in the heart of Shanghai City, among others.
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