SIHI side channel pumps

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Overview

The side channel principle was invented in 1920 by Mr Siemen and Mr Hinsch - the founders of SIHI.  Since then, the company has steadily developed and improved the design.  

The process industry demands high operationsal safety levels for its equipment, and SIHI fully meet these standards - offering an extensive range of materials for the highly efficient side channel pump range.

The range of side channel pumps is extensive and is split into four different series - see the below product tabs for more information

Product Information

CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

The CEH-X/CEH series pumps have a segmental type construction with open vane wheel impellers.
The different material possibilities with uniform dimensions and performance characteristics as well as the standard exchangeable components, make the CEH particularly recommendable for applications in the pharmaceutical, chemical or petrochemical market as well as in the plastic or oil industry. Because of its low NPSH and positive suction head the CEH is very suitable for the pumping of liquefied gasses and liquids under vapour pressure like:

  • Condensate
  • Refrigerant
  • Boiler feed water
  • LPG

The pumps of the CEH /7 series have a retaining stage to avoid the dry running by controlling the liquid level in the pump. This design is especially developed for the handling of liquids under vapour pressure or when pumping from underground tanks. The series CEH /5 are used for bottom off-loading of liquids under vapour pressure

 

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
CEH-X 1201 ... 120814502102.5
CEH-X 3101 ... 310814503204.5
CEH-X 3601 ... 360814502307.5
CEH 1200 / CEH 1200/514502102.5
CEH 3100 / CEH3100/514503204.5
CEH 3600 / CEH 3600/514502307.5
CEH 4100 / CEH 4100/5145025012
CEH 5100 / CEH 5100/5145030020
CEH 6100 / CEH 6100/5145035035
CEH 1200/714501802.5
CEH 3100/714502804.5
CEH 3600/714502007.5
CEH 4100/7145022012
CEH 5100/7145027020
CEH 6100/7145031035
CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

The AEH pumps were especially developed for difficult applications in all industry sectors and are thus applied when pure, turbid or aggressive media have to be pumped under difficult conditions without any problems.

The different material possibilities with uniform dimensions and performance characteristics as well as the standard exchangeable components, make the AEH particularly recommendable as universal pump for all possible pumping problems. This results in a wide application range in many sectors such as:

  • Chemical Industry
  • Petro-chemical Industry
  • Pharmaceutical Industry
  • OEM
  • Oil Industry
  • Food Industry

Pumps of the series AEH have a segmental type construction with open vane wheel impellers. The pumps is available in a normal industrial design with one liquid surrounded slide bearing and one Sihi AEH Displayball bearing or in a heavy-duty construction with a double ball bearing design.

The range comprises 6 sizes each with 1-8 stages. The existing material design allows an optimum rating for the respectively desired performance range and the pumping medium.
The applied hydraulic components are from our Modular Side Channel system (interchangeability of parts).

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
AEH 0805...080829004001.8
AEH 1201...120814502002.5
AEH-X 1201...120814502002.5
AEH-X 3101...310814503204.5
AEH-X 3601...360814502257.4
CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

The SIHI AKH-X pump is a self-priming side channel pump capable of handling gas along with the medium and operates at a low noise level.
The AKH-X pumps are used for problem-free pumping of clean liquids at unfavourable suction side conditions.
Their Head-Flow curves are allowing an accurate pressure regulation for a small flow variation.
Different material possibilities with uniform dimensions and performance characteristics as well as the standard exchangeable components are used for the construction.

The AKH and AKH-X pump ranges have been developed for a broad range of medium duty applications in:Sihi AKH Display

  • Chemical industry
  • Petro-Chemical industry
  • Oil industry
  • Machinery and automobile industry
  • Food industry
  • Building trades
  • Plastic and rubber industry
  • Surface treatment,
  • Ship yards.

 

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
AKH 1101...110414501001.5
AKH 1201...120414501052.5
AKH 3101...310414501404.5
AKH 3601...360414501257.5
AKH 4101...4104145012512
AKH 5101...5103145012520
AKH 6101...6103145012535
AKH-X 1201...120614501602.5
AKH-X 3101...310614502404.5
AKH-X 3601...360614501707.5
CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

The pumps of the ADH series are used when liquids and condensates without abrasive admixtures are to be handled trouble-free under high heads.

The pumps are used:

  • in industries running boilers
  • for the handling of condensate and boiler feed water
  • for the construction of washing, cleaning and spraying plants
  • in the construction of fire-extinguishing equipment

The pumps of the ADH/AEH series are segmental type, horizontal side channel pumps self-priming and handling gases during normal liquid duty, operating with unshrouded vane wheel impellers.

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
ADH / CDH 0801...080429002101.8
ADH / CDH 0901...090429002202.2
ADH / CDH 1401...140429002504
ADH / CDH 1501...150429002504.5
ADH / CDH 2401...240429002506
ADH / CDH 2501...250429002507.2
CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

Pumps of the series AOH have a segmental type construction with open vane wheel impellers.

The range comprises of 3 sizes with up to 4 stages for the size 1200 and up to 3 stages for the sizes 3100/3600. The performance curves of the AOH are identical for all material designs.

The applied hydraulic components are from our Modular Side Channel system (interchangeability of parts).SIHI AOH display

The AOH is used in domestic plants and agriculture for:

  • Irrigation
  • Drainage
  • Sprinkling

 

The AOH is well known in domestic plants and agriculture for:

  • Boosting pressure
  • Cooling water
  • Water circulation
  • Boiler feeding
  • Condensate
  • Cleaning plants
  • Ship yards

 

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
AOH 1201...120414501002
AOH 3101...310314501004.5
AOH 3601...36031450857.5
CEH-X / CEH Series AEH-X / AEH Series AKH-X / AKH Series ADH Series AOH Series ASH Series

Pumps of the ASH series were developed for handling liquid gases with vapour pressures of up to 80 bar. The high admissible nominal pressure and the optimum operation properties of the material combinations selected resulted in multiple application of this series, especially for handling - carbon dioxide

They are successfully applied:

  • in processes and installations for the production, storage and transportation of CO2
  • in supply plants, measuring, regulation and decanting equipments
  • fire-extinguishing and inert installations
  • in CO2 drying and CO2 cleaning plants
  • for production of dry ice
  • neutralizing of alcaline waste waters

 

Model / SeriesRPMMax Head (m)Max Flow (m³/hr)
ASH 3105...310814502884.5
ASH 4105...4108145021012