The SOW series horizontal single-stage split-casing double-suction centrifugal pump represents the pinnacle of innovation, embodying a groundbreaking generation of pumps with unparalleled excellence. With a meticulously crafted model spectrum, stellar performance attributes, and pioneering structural integrity, these pumps are engineered for effortless maintenance and exceptional longevity. Our current SOW pump line boasts an impressive array of 46 models and 390 fundamental specifications. Utilizing both prime and modified impellers, along with cutting-edge technology, these pumps deliver an expansive performance range, ensuring superior efficiency tailored to meet diverse user demands across various operational flows and heads. Exemplifying flawless craftsmanship and rigorous quality assurance, this product attains a leading position within domestic markets. This exemplary series meets the stringent ISO2548C, GB3216C, and GB/T5657 standards.
Designed to perfection, the double-suction impeller on this model effectively minimizes axial force, ensuring stability and prolonged operational life. The integration of a CAD-optimized hydraulic model fosters remarkable performance enhancements. The pump's adaptability shines with an optional prototype impeller and a modified impeller, catering to varied working conditions and substantially boosting efficiency.
Constructed with precision, the pump's double volute form significantly reduces radial force, resulting in minimal bearing stress and extended lifespan. The design facilitates seamless installation and automatic alignment of the pump cover, offering flexibility in the positioning of pipelines and motors to suit user site requirements. The pump inlet is engineered for turbulence-free operation, guaranteeing smooth functionality and minimal energy loss. Featuring precision casting, the pump casing and impeller surfaces are exceptionally smooth, delivering outstanding anti-cavitation properties and enhanced 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: Discover the remarkable engineering of split-case pumps, renowned for their 'between-the-bearings' architecture. This innovative design ensures that the impeller is securely mounted on a shaft, supported by robust bearings on both of its sides, delivering unparalleled stability and performance.
Double-Suction Impeller Excellence: Split-case pumps stand out as the quintessential choice with their unique double-suction impeller. This design marvel significantly reduces the load on the bearings compared to single-suction alternatives, where water is drawn from only one side. Experience the optimal efficiency and reduced wear that our pumps provide.
High-Precision Casting for Superior Performance: Our impellers, crafted with precision casting techniques, guarantee unmatched performance and reliability. Available in durable materials such as cast iron, stainless steel, and bronze, these impellers are engineered to withstand the toughest conditions while delivering exceptional results.
Packing Seals: Trusted and Proven for Years: For decades, packing seals have been the go-to solution in pump sealing technology. Utilizing rope-like materials to snugly wrap around the pump shaft, they effectively fill dead spaces and curtail fluid loss. Over prolonged use, however, the inherent wear may lead to increased fluid loss, potentially affecting lubrication and maintenance efficiency.
Mechanical Seals: The Modern Sealing Solution: In applications demanding minimal leakage, mechanical seals are preferred over traditional packing seals. These modern seals are engineered for durability and to endure significant stress, using a series of sealing points to virtually eliminate leakage concerns.
Innovative Flexible Couplings
Flexible Couplings: Designed for Performance and Adaptability: Unlike their rigid counterparts, flexible couplings are engineered to accommodate various movements, such as vibrations and thermal expansions, without incurring damage. Ideal for scenarios with unavoidable misalignment between the drive and pump shafts, they also excel in minimizing excessive operational noise. While they feature a more intricate and costlier design, the protection they offer to shafts and bearings from premature wear translates into significant maintenance savings over time.
Wear-Resisting Disc or Pin Couplings for Durability: Our selection of wear-resisting disc or pin couplings is designed to provide exceptional durability and performance, ensuring your pump operates smoothly under demanding conditions.
This remarkable High Efficiency Double-Suction Pump with Packing Gland Seal for Flooding is a versatile powerhouse, seamlessly integrating into a multitude of critical infrastructure and industrial applications. It is the go-to solution for urban water management, efficiently ensuring both water supply and drainage in bustling cities. Moreover, it forms the backbone of central heating systems, providing steady and reliable support. Its prowess extends to heavy industries such as iron and steel metallurgy, oil refineries, and paper mills, where robust performance is paramount. Additionally, it adeptly serves the needs of power plants, airports, and chemical plants, enhancing operational efficiency. The pump's exceptional capabilities make it an indispensable asset in textile and sugar mills, agricultural irrigation, and diverse water projects, ensuring optimal functioning of air conditioning systems and consumer drainage systems alike. Truly, its applications are as broad as they are vital, making it an essential component in the modern landscape of infrastructure and industry.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged prestigious long-term partnerships with several leading domestic pump-testing institutions. These collaborations ensure optimal quality and performance verification, enhancing the reliability of our High Efficiency Double-Suction Pump with Packing Gland Seal for Flooding. Our esteemed partners include:
The National Quality Supervision and Inspection Center of Industrial Pumps, located in the dynamic Tiexi District of Shenyang City,
The esteemed Irrigation Machinery Products Quality Inspection Center of Machinery Industrial in Zhenjiang City,
The renowned Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in the vibrant city of Chongqing,
And the prominent Shanghai Mechanical and Electrical Products Quality Inspection Center, nestled in the bustling metropolis of Shanghai, and numerous others.