The IH end-suction pump stands as a pinnacle of engineering excellence, featuring a single-stage, single-suction (axial suction) cantilever centrifugal design. It is tailored for transporting corrosive liquids that maintain a viscosity akin to water, free of solid particles. This marvel adheres to the stringent international standards encapsulated in ISO2858, and boasts an impressive array of performance attributes: a broad operational range, exceptional efficiency, and straightforward maintenance. Remarkably, it surpasses the F-type pump with an average efficiency increase of 5%. Promoted as an international energy-saving benchmark, this pump embodies innovation and sustainability.
The IH chemical pump is engineered to manage transmission mediums with temperatures spanning from -20 ºC to 105 ºC. Should the application demand, it can handle even higher temperatures with enhanced cooling solutions. This versatility makes it ideal for a spectrum of industries, including chemical, petroleum, metallurgy, electric power, paper, food, pharmaceuticals, and synthetic fibers. It proficiently transports various corrosive media that mimic water, all without causing pollution – a testament to its environmental consciousness.
Main Design Features
Engineered to excel in high-pressure scenarios, this pump is equipped with flanges rated for PN 10 and PN 16, ensuring robust performance under demanding conditions.
Its intuitive 'Back pull-out' design facilitates the removal of hydraulic components without detaching the pump body from the plant pipes, streamlining maintenance and minimizing downtime.
The dynamically balanced closed impeller is meticulously crafted to minimize radial loads, ensuring the impeller spins with unparalleled smoothness.
The suction profile is meticulously optimized to reduce NPSH, guaranteeing seamless and trouble-free operations even in the most challenging environments.
A stainless steel shaft is incorporated to deftly withstand bending-torsion loads, enhancing durability and resilience.
Oversized ball bearings are employed to significantly diminish operational noise while extending the service life of the pump, ensuring quiet and reliable performance.
Boasting a wide array of mechanical seals or gland packings (SES), this pump can be customized to meet the precise requirements dictated by fluid characteristics and usage conditions, maximizing versatility and efficiency.
| Pump Speed |
1450 and 2950rpm; |
| Motor Voltage |
380V/415V, 3.3KV, 6KV and 10KV; |
| Caliber |
50-400mm;(flange dimensions conform GB/T17241.6-1998) |
| Flow range |
6-1000m3 / hr |
| Head range |
6-130m; |
| Temperature range |
Medium maximum temperature ≤170'C, ambient temperature ≤60'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 |
29 basic types, of which 22 pairs speed (1450rpm, 2900rpm) through A, B with two forms of the impeller diameter cutting variants, reaching 112 specifications. |
To achieve perfect balance of axial thrust, our innovative design incorporates both front and back wear rings around the majority of the impeller, complemented by a precise balance hole on the impeller's back shroud. For certain pumps, where axial thrust proves minimal, the design cleverly omits the back wear ring and balance hole, maintaining efficiency without unnecessary components.
Our high-precision casting impeller is crafted to ensure optimal performance, available in robust materials such as cast iron, stainless steel, and bronze, meeting diverse operational needs with unparalleled quality.
The meticulously designed packing pump cover is equipped with superior stuffing for a soft packing seal, allowing water to infiltrate at specific pressure for effective seal cooling, lubrication, and cleaning, ensuring seamless operation and longevity.
Our mechanical seals come in two sophisticated varieties: single and double. These seals ingeniously channel water under specific pressure into the seal cavity, efficiently rinsing and cooling the end surface friction. Adaptability to ISO3069 configurations, such as mechanical seals with corrugated pipes and expeller seals, further enhances their versatility and performance.
Ingenious Flexible Couplings
Distinguished from rigid couplings, flexible couplings are engineered to accommodate inevitable movements, such as vibrations and thermal expansions, without sustaining damage. Ideal for situations where there is slight misalignment between drive and pump shafts, they excel at absorbing vibrations, reducing operational noise. While their design is more complex and costly, the protection they provide to shafts and bearings translates into significant maintenance savings over time.
We proudly utilize wear-resistant disc couplings or pin couplings, ensuring durability and reliability.
The Robust Diesel Engine Pull-Back Water Pump with Horizontal Design from Shanghai Semhai Pump Co., Ltd. is engineered to excel in a multitude of demanding environments. Its versatility and power make it an indispensable asset for urban water supply and drainage systems, ensuring seamless operations in cities. This pump provides reliable solutions for central heating systems and industrial sectors such as iron and steel metallurgy, oil refineries, and paper mills. It also serves oil and power plants, facilitating efficient airport construction and chemical plant operations. From textile and sugar mills to plant mines and consumer drainage systems, this pump adapts effortlessly, proving essential for air conditioning water supply systems, agricultural irrigation, and various water projects. Perfectly suited for diverse applications, this pump is a testament to Shanghai Semhai's commitment to innovation and quality in water management technology.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has forged strategic, long-term partnerships with several distinguished domestic pump-testing institutions, including:
The esteemed National Quality Supervision and Inspection Center of Industrial Pumps, located in Tiexi District, Shenyang City,
The prestigious Irrigation Machinery Products Quality Inspection Center of Machinery Industrial situated in Zhenjiang City,
The renowned Ministry of Agriculture, Water Pump Quality Supervision and Testing Center in the vibrant city of Chongqing,
The reputable Shanghai Mechanical and Electrical Products Quality Inspection Center, right in the heart of Shanghai, and many more.
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