The SOW series represents a cutting-edge advancement in horizontal single-stage split-casing double-suction centrifugal pumps. These pumps are the epitome of excellence with their impeccable spectrum, outstanding model, and superior performance. Noteworthy for their pioneering and robust structure, these pumps guarantee effortless maintenance and extended durability. Our comprehensive SOW pump range includes 46 models with 390 basic specifications, ensuring unmatched versatility. By employing prime and modified impellers, along with precision cutting techniques, these pumps boast a broad-based spectrum that excels in efficiency and performance across the spectrum. Meticulously crafted and subjected to stringent quality control, the product stands at the forefront of domestic technology. This distinguished series adheres to ISO2548C, GB3216C, and GB/T5657 standards, ensuring global competitive edge.
Designed with a double-suction impeller, this pump minimizes axial force, enhancing operational stability. Utilizing advanced CAD hydraulic models, it achieves optimal performance with exceptional efficiency. This configuration is further complemented by a prototype impeller and adaptable modified impellers, enabling it to meet diverse operational conditions and elevate efficiency levels.
Engineered for precision, the pump features a double volute design, strategically reducing radial forces for minimal bearing load and extended longevity. Installation is straightforward, with automatic pump cover calibration to ensure utmost precision. The versatile design allows the motor and pump's inlet and outlet positions to adapt to specific site requirements. The pump operates without swirl, promising smooth, low-loss performance. Advanced precision casting techniques result in a pump casing and impeller surface that are impeccably smooth, offering remarkable anti-cavitation properties and exceptional 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 Design: Our Split-Case Pumps shine with their 'between-the-bearings' architecture, a hallmark of superior engineering. The impeller is meticulously mounted on a robust shaft, securely supported by bearings on both sides, ensuring stability and efficiency.
Double-Suction Impeller: Our Split-Case Pumps boast the distinction of incorporating a double-suction impeller, a rarity among common pump types. This innovative design significantly reduces the load on the bearings compared to single-suction counterparts, ensuring enhanced durability and performance.
High-Precision Casting: Our impellers, crafted through high-precision casting, promise unparalleled performance and reliability. Available in materials such as cast iron, stainless steel, and bronze, they cater to diverse operational needs while maintaining exceptional standards.
Packing Seals: Traditionally acclaimed, packing seals have long served as a reliable sealing solution. Crafted from rope-like materials, they envelop the pump shaft, filling voids and curbing fluid loss. However, as time progresses, wear may increase fluid leakage, potentially complicating lubrication and replacement processes.
Mechanical Seals: For those seeking superior sealing, mechanical seals surpass traditional packing options. Engineered for resilience, they deftly manage application-induced leakage concerns. Designed with multiple sealing points, these seals drastically minimize leakage, offering a robust and enduring solution.
Versatile Flexible Couplings
Flexible Couplings: These are the unsung heroes of pump technology, accommodating movement, such as vibrations and thermal expansion, that would be detrimental to rigid couplings. Ideal for scenarios with misalignment between drive and pump shafts, they also reduce noise and vibration. Though more complex and costly, the long-term maintenance savings and protection for shafts and bearings make them indispensable.
Wear-Resisting Couplings: We prioritize durability with our selection of wear-resisting disc or pin couplings, ensuring long-lasting performance in demanding environments.
The Powerful Double-Suction Pump with Electric Motor for Fire Control by Shanghai Semhai Pump Co., Ltd. is an essential powerhouse engineered for versatility across numerous industries and applications. This robust pump is expertly designed for optimal performance in urban water supply and drainage, ensuring consistent and reliable service. It is an indispensable component of central heating systems, contributing to efficient and sustainable heat management. Its utility extends to the infrastructure of iron and steel metallurgy, providing a critical role in operational efficiency. Oil refineries benefit from its durable build, navigating complex fluid transfer with precision and ease. At paper mills, it supports the seamless flow of production processes. It is a vital asset in oil, power plant, and airport construction, where reliability is non-negotiable. Its application in chemical plants and textile mills underscores its adaptability and effectiveness. Sugar mills, too, rely on its robust performance for streamlined operations. Its significant presence in power plants reinforces its reputation for reliability and excellence. The pump is also invaluable for drainage in plant mines, consumer drainage systems, and air conditioning systems, ensuring seamless water supply and management. In agricultural irrigation and drainage, it's a trusted ally, supporting various water projects with unwavering efficiency and excellence.
Professional cooperation agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with a prestigious array of premier domestic pump-testing institutions, ensuring the utmost precision and reliability in our products, such as:
National Quality Supervision and Inspection Center of Industrial Pumps in Tiexi District, Shenyang City, where meticulous standards define excellence,
Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, a beacon of innovation in testing and analysis,
Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in Chongqing City, heralding agricultural advancements through rigorous assessments,
Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, embodying the pinnacle of engineering excellence and precision.
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