Introducing the SOW series, the pinnacle of horizontal single-stage split-casing double-suction centrifugal pumps. As the latest advancement in split-casing double-suction technology, this pump boasts an impeccable spectrum of models, masterful design, and unmatched performance. Crafted with an innovative and dependable structure, it ensures effortless maintenance and enduring longevity. Our SOW pump range encompasses 46 sophisticated models and 390 fundamental specifications. Employing both prime and modified impellers, along with cutting-edge type variations, this pump covers an extensive performance spectrum with remarkable efficiency, precisely catering to user demands across diverse work flow and head scenarios. Meticulously manufactured with rigorous quality control, this state-of-the-art product achieves a leading position domestically. It adheres to the prestigious ISO2548C, GB3216C, and GB/T5657 standards.
Engineered for excellence, the double-suction impeller is crafted to significantly minimize axial force, enhancing the pump's reliability. Utilizing a state-of-the-art CAD hydraulic model, it is designed to deliver optimal performance. With the inclusion of a pioneering prototype impeller, alongside the option of a modified impeller, the pump adeptly adapts to varying conditions, thereby elevating efficiency to new heights.
Expertly designed according to force conditions, the pump features a double volute form that significantly reduces radial force, resulting in minimal bearing stress and prolonged lifespan. Its installation is a breeze, with automatic calibration of the pump cover. The adaptable relative positioning of the motor and pump's inlet and outlet pipelines allows customization to match user site specifications. With a swirl-free pump inlet, it ensures seamless operation and minimal loss. Through precision casting, the pump casing and impeller surfaces are incredibly smooth, offering exceptional anti-cavitation performance and 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 Advantage: Our split-case pumps showcase the sophisticated 'between-the-bearings' design. This innovative concept involves mounting the impeller on a robust shaft, meticulously supported by bearings on both sides, ensuring stability and enhanced performance.
Double-Suction Impeller Marvel: Split-case pumps stand apart as the primary pump design featuring a cutting-edge double-suction impeller. This advanced configuration imposes significantly lower loads on the bearings compared to traditional single-suction designs, which only draw water from one side. Experience superior efficiency and reliability.
High-Precision Casting Excellence: The impellers are crafted using high-precision casting techniques to guarantee unmatched performance. Available in cast iron, stainless steel, and bronze, these impellers are designed to deliver peak performance and durability.
Traditional Packing Seals: For years, packing seals have been the go-to sealing solution. They utilize rope-like materials to snugly wrap around the pump shaft, effectively filling dead space and minimizing fluid loss. However, as time progresses, fluid loss may increase due to wear of the gland packing material, potentially impairing lubrication and complicating replacement processes critical for optimal function.
Mechanical Seals: The Superior Choice: In applications where leakage cannot be compromised, mechanical seals surpass traditional packing seals. Renowned for their durability, these seals are engineered to withstand intense conditions. Utilizing multiple sealing points, they almost completely eradicate leakage issues, ensuring your operations run smoothly.
Versatile Flexible Couplings
Adaptive Flexible Couplings: Unlike their rigid counterparts, flexible couplings are adept at accommodating movement, such as vibrations and thermal expansion, without sustaining damage. Ideal for scenarios with unavoidable misalignment between drive and pump shafts, they excel in absorbing vibrations, thereby reducing operating noise. While their design is more complex and costly, the protective benefits they offer to shafts and bearings lead to significant long-term maintenance savings.
We employ robust wear-resisting disc or pin couplings for optimal performance.
Discover the unparalleled versatility of the Strong Double-Suction Pump with Packing Gland Seal for Irrigation by Shanghai Semhai Pump Co., Ltd. This exceptional product is expertly crafted to cater to an extensive range of applications. It is an ideal choice for urban water supply and drainage, ensuring seamless water management in bustling cities. The pump excels in central heating systems and drainage, providing reliable service for efficient temperature control and waste management. Perfect for iron and steel metallurgy companies, as well as oil refineries, this pump supports industrial operations with unmatched reliability. Elevate the productivity of paper mills, oil facilities, and power plants with a pump designed to meet the rigorous demands of these sectors. Its applications extend to airport construction, chemical plants, and textile mills, where precision and dependability are crucial. Furthermore, it is a superb fit for sugar mills, plant mines consumer drainage systems, and chemical plant operations, offering robust performance across diverse environments. Whether it's for air conditioning systems of water supply or agricultural irrigation, the pump ensures optimal delivery and drainage for various water projects. Experience the excellence of a pump engineered for diverse applications and efficient operation.
Professional cooperation agencies
Shanghai Semhai Pump Co., Ltd. is proud to have forged enduring partnerships with several premier domestic pump-testing authorities, ensuring the utmost quality and performance of our products. These prestigious institutions include:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps located in the vibrant Tiexi District of Shengyang city,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial situated in Zhenjiang City,
The Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, a leading authority based in Chongqing city,
The highly respected Shanghai Mechanical and Electrical Products Quality Inspection Center, prominently positioned in the bustling city of Shanghai, and many more.
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