Introducing the SOW series - a masterpiece in engineering from Shanghai Semhai Pump Co., Ltd. This horizontal single-stage, split-casing, double-suction centrifugal pump represents the pinnacle of our innovation and excellence. It stands out with a meticulously crafted design, wide-ranging model options, and exceptional performance. With a robust structure that's built to last, our SOW series promises effortless maintenance and enduring reliability. Boasting 46 diverse models and 390 base specifications, it is engineered with both prime and adaptable impellers. This guarantees versatility across a comprehensive spectrum, ensuring high efficiency and optimal performance tailored to any requirement. Our SOW pump is not only a product of precise manufacturing but also rigorous quality control, securing its position as a leader domestically. Compliant with ISO2548C, GB3216C, and GB/T5657 standards, it sets a benchmark in the industry.
Engineered for excellence, our pump features a double-suction impeller that significantly minimizes axial force, ensuring smooth operation. The integration of a CAD-optimized hydraulic model reflects our commitment to superior design and outstanding performance. With its adaptability, the pump can incorporate both prototype and modified impellers to suit various operational needs, enhancing overall efficiency.
This pump is designed with a double volute form to effectively reduce radial forces, resulting in minimal bearing stress and extended longevity. Installation is a breeze with its automatic pump cover calibration. Moreover, the alignment of the motor and pump can be adjusted to accommodate specific site requirements, providing unmatched flexibility. Featuring a non-turbulent pump inlet, it ensures seamless operation with reduced energy loss. The precision casting of the pump casing and impeller surface enhances smoothness, delivering superior anti-cavitation capabilities 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: Split-case pumps are marvels of engineering, designed as "between-the-bearings" pumps. This innovative construction means that the impeller is mounted on a shaft, supported by robust bearings on both sides, ensuring smooth and efficient operation.
Double-suction impeller: Split-case pumps stand out with their unique double-suction impeller design. This design significantly reduces the load on bearings compared to single-suction impellers, which draw water from only one side, enhancing longevity and reliability.
High-precision casting impeller: Crafted with precision, our impellers guarantee top-tier performance. Available in durable materials such as cast iron, stainless steel, and bronze, they ensure reliability and efficiency in every application.
Packing seals: Traditional yet effective, packing seals have been the go-to solution for decades. Comprising rope-like materials that snugly wrap around the pump shaft, they minimize fluid loss by filling dead space. However, wear over time may increase fluid leakage, impacting lubrication and ease of replacement.
Mechanical seals: A modern upgrade to traditional packing, mechanical seals are the preferred choice for applications where leakage is a concern. They boast greater durability and are engineered to endure harsh conditions, utilizing multiple sealing points to virtually eliminate leakage issues.
Flexible couplings
Flexible couplings: Unlike their rigid counterparts, flexible couplings are designed to accommodate movements such as vibrations and thermal expansion, making them perfect for applications with some unavoidable misalignment between the drive and pump shafts. They also help in reducing excessive noise, though they feature a more complex and costly design. However, by safeguarding the shaft and bearings from damage, they promise significant maintenance savings over time.
We use durable wear-resisting disc or pin couplings, ensuring longevity and reliability in our systems.
Discover the ultimate solution for your high-pressure water needs with the Heavy Duty Cast Iron Fire Pump, brought to you by Shanghai Semhai Pump Co., Ltd. This extraordinary pump is engineered for excellence, making it an invaluable asset across a diverse array of industries. Seamlessly integrate it into urban water supply and drainage systems, ensuring the smooth flow of water for metropolitan needs. Enhance central heating systems and experience unmatched efficiency in fluid management. The pump's robust construction and superior performance make it indispensable for iron and steel metallurgy firms, optimizing their operational capacities. Perfect for oil refineries, paper mills, and power plants, it assures reliability under the most demanding conditions. Whether you're involved in airport construction, chemical plant operations, textile or sugar mills, this pump rises to the challenge, consistently delivering peak performance. Tailored for agricultural irrigation and diverse water projects, it provides the essential support needed for efficient water management in drainage systems, plant mines, and air conditioning systems. Elevate your water supply solutions with a pump that's designed to meet and exceed your expectations.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged prestigious and enduring partnerships with a multitude of prominent domestic pump-testing institutions, ensuring our commitment to quality and excellence. Our strategic collaborations include:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City, which stands as a paragon of industry standards,
The cutting-edge Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City, renowned for its rigorous quality assessment,
Chongqing City's Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, a distinguished authority in comprehensive pump evaluations,
And the illustrious Shanghai Mechanical and Electrical Products Quality Inspection Center in Shanghai City, among others.
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