Introducing the SOW series horizontal single-stage split-casing double-suction centrifugal pump - a state-of-the-art innovation that represents the pinnacle of modern pump design. As the latest evolution in split-casing double-suction technology, this pump boasts a superbly comprehensive model spectrum, impeccable design, and extraordinary performance. Its innovative and reliable construction ensures ease of maintenance and extended lifespan. The current SOW pump series offers an impressive lineup with 46 models and 390 fundamental specifications. Thanks to the advanced prime impeller, modified impeller, and precise cutting types, it achieves an expansive spectrum of high efficiency and performance, perfectly tailored to meet specific user requirements across various operational flows and heads. Each pump is meticulously crafted under stringent quality controls, setting the benchmark for domestic superiority. This series adheres to stringent standards, including ISO2548C, GB3216C, and GB/T5657, ensuring unparalleled quality and reliability.
The innovative double-suction impeller is engineered meticulously to minimize axial force, while the CAD hydraulic model optimizes design for exceptional performance. By incorporating a prototype impeller, along with the flexibility to use modified variations, it seamlessly adapts to diverse working conditions, significantly enhancing efficiency and reliability.
Crafted with precision, the pump features a double volute form specifically designed to mitigate radial force, resulting in minimal bearing stress and an extended lifespan. Installation is effortless, with automatic pump cover calibration ensuring seamless setup. The pump's adaptable design allows for customizable inlet and outlet pipeline positioning to suit specific site requirements, guaranteeing a smooth, swirl-free operation with minimal loss. High-precision casting ensures an exceptionally smooth surface finish for both the pump casing and impeller, delivering outstanding anti-cavitation performance and superior 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: Immerse yourself in the engineering finesse of split-case pumps, known as 'between-the-bearings' marvels. These sophisticated pumps house the impeller on a shaft, elegantly cradled by robust bearings on either side, ensuring unparalleled balance and stability for optimal performance.
Double-suction impeller: Discover the unrivaled efficiency of split-case pumps, the only common type featuring the innovative double-suction impeller. This design marvel significantly reduces the load on bearings compared to single-suction impellers, which draw water from just one side, offering enhanced reliability and longevity.
Crafted with precision, our high-precision casting impeller promises superior performance. Available in durable materials such as cast iron, stainless steel, and bronze, it assures resilience and strength in every application.
Packing seals: For years, packing seals have provided a reliable sealing solution, wrapping their rope-like material snugly around the pump shaft to fill dead spaces and minimize fluid loss. However, as time progresses, they may wear down, leading to increased fluid loss and potentially affecting lubrication and replacement efficiency.
Mechanical seals: In applications where leakage is a concern, mechanical seals have become the preferred choice over traditional packing seals. These advanced seals boast enhanced durability and are engineered to withstand greater adversity, incorporating multiple sealing points to virtually eliminate leakage.
Flexible couplings
Flexible couplings: Offering adaptability that rigid couplings cannot, flexible couplings elegantly accommodate movements such as vibrations and thermal expansion without causing damage. Ideal for scenarios with unavoidable misalignment between drive and pump shafts, they expertly absorb vibrations to reduce excessive noise. Though their design is more complex and costly, the long-term maintenance savings and protection against shaft and bearing damage make them an invaluable investment.
Our selection includes premium wear-resisting disc or pin couplings, designed for durability and excellence.
Our Robust Horizontal Pump with Mechanical Seal for Flood Protection by Shanghai Semhai Pump Co., Ltd. is a versatile solution designed to excel in a multitude of demanding environments. It is extensively utilized in urban water supply and drainage systems, ensuring seamless water flow and enhanced safety. This exceptional product is indispensable in central heating systems, providing efficient drainage solutions. It is the backbone of heavy industries such as iron and steel metallurgy, oil refineries, and paper mills, contributing to their operational excellence. The pump's reliability is unmatched in power plants and airport construction, where performance is critical. Additionally, it serves the needs of chemical plants, offering robust support in textile and sugar mills, enhancing productivity and sustainability. Its presence is vital in diverse power plant applications and drainage systems within plant mines. It ensures effective consumer drainage, sustains air conditioning systems' water supply, and supports agricultural irrigation with superior efficiency. Our pump also meets the challenges of various water projects, offering unmatched durability and performance.
Esteemed Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged enduring partnerships with some of the nation's premier pump-testing institutions. Our commitment to excellence is reflected in collaborations with renowned entities, including:
The esteemed National Quality Supervision and Inspection Center for Industrial Pumps, located in Tiexi District, Shenyang City,
The prestigious Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in Zhenjiang City,
The reputable 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, right here in Shanghai City, among others.
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