SOW series horizontal single-stage split-casing double-suction centrifugal pump stands as the latest evolution in split-casing double-suction pumps. It boasts a remarkable spectrum, superb design, and unparalleled performance. Its innovative and dependable structure ensures ease of maintenance and longevity. Currently, our SOW pump presents an array of 46 models along with 390 basic specifications. Introducing the prime impeller alongside modified and cutting-edge impeller options, this pump exhibits a diverse, high-efficiency performance range. It caters to user demands at any point along the workflow and head. Meticulously crafted with impeccable quality control, this product has achieved a leading position within domestic markets. This series adheres to ISO2548C, GB3216C, and GB/T5657 standards.
Featuring a double-suction impeller, it minimizes axial force, ensuring peak performance. With the integration of a CAD hydraulic model, the design is optimized for superior efficiency. Additionally, a prototype impeller is available, capable of utilizing modified options to adapt to varying working conditions, thereby enhancing efficiency across the board.
Engineered with a double volute form, this pump minimizes radial force, resulting in reduced bearing stress and extended lifespan. Installation is straightforward, with automatic pump cover calibration. The motor and pump's relative inlet and outlet positions can be adjusted to meet site-specific requirements. The pump inlet is swirl-free, ensuring smooth operation and minimal loss. The precision casting of the pump casing and impeller surfaces yields exceptional anti-cavitation performance and elevated 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 Excellence: Discover the innovative engineering behind our split-case pumps, known for their 'between-the-bearings' design. This advanced configuration ensures the impeller is strategically mounted on a shaft, secured by robust bearings on both sides, promising unparalleled stability and efficiency.
Double-Suction Impeller Innovation: Embrace the uniqueness of our split-case pumps, the unparalleled COMMON pump type that features a double suction impeller. This ingenious design significantly reduces the load on bearings compared to single-suction counterparts, enhancing durability and performance.
High-Precision Casting Mastery: Our cutting-edge cast impeller guarantees exceptional performance with options in cast iron, stainless steel, and bronze, making it a versatile choice for varied applications.
Traditional Packing Seals: The time-honored choice, packing seals, crafted from rope-like materials, snugly wrap around the pump shaft. Although they diligently minimize fluid loss, wear and tear over time may increase leakage, compromise lubrication, and complicate replacement processes.
Advanced Mechanical Seals: Opt for the modern marvels of mechanical seals, renowned for surpassing traditional packing seals. Engineered for endurance, these seals are designed to withstand rigorous conditions, boasting multiple sealing points that virtually eliminate leakage, ensuring optimal operational integrity.
Flexible Couplings
Versatile 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, they efficiently absorb vibrations to reduce noise. While their design is more complex and costly, the long-term savings on maintenance, through protection against shaft and bearing wear, make them a prudent investment.
We employ durable wear-resisting disc or pin couplings to ensure optimal performance and longevity.
This versatile and robust product is a cornerstone in a multitude of sectors, enhancing efficiency and safety across diverse applications. It plays a vital role in urban water supply and drainage systems, ensuring seamless operations in both residential and commercial environments. In central heating systems, it facilitates optimal thermal management, while in the steel and metallurgy industries, it supports the crucial processes with unmatched reliability. Essential to oil refineries and paper mills, it aids in maintaining smooth operations. Additionally, this product is indispensable in the power generation sector, airports, and chemical plants, where precision and safety are paramount. Textile and sugar mills benefit from its durability, and it is integral to agricultural irrigation and drainage, ensuring water is effectively managed across various projects. Furthermore, it supports air conditioning systems by maintaining efficient water supply, proving itself as a vital component in numerous industrial and municipal applications.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged robust and enduring partnerships with numerous prominent domestic pump-testing authorities, ensuring our products meet the highest standards. Our esteemed associates include:
The prestigious National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, 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 situated in Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center based in Shanghai City, among others.
Audited Supplier 
){kind=link}