Explore our comprehensive selection of regenerative air blowers, also known as side channel blowers, designed to meet demanding performance requirements. Our G-Series blowers offer exceptional flexibility and power, catering to a wide range of industrial applications.
High Performance and Versatility
Our regenerative air blowers deliver impressive performance, with capacities up to 1,766 cfm at 60 Hz and differential pressures of up to 420 in. H₂O. These capabilities make them ideal for applications requiring reliable airflow and pressure.
Robust Design and Worldwide Compliance
The G-Series air blowers feature NEMA Premium motors with voltage ranges suitable for 50 and 60 Hz operations, housed in IP 55 protection class (insulation class F). Approved by UL 507 and CSA 22.2 No. 113, our blowers ensure compliance and reliability for global use.
Trusted Solutions for Demanding Environments
Whether you're in packaging, wastewater treatment, or industrial processing, our regenerative blowers offer the durability and performance necessary to optimize your operations. Backed by our commitment to quality and service, CompreVac provides solutions that meet your specific needs.
How does a regenerative blower work?
The impellers in the G-Series machines are mounted directly on the motor shaft for contact free compression. Maximum operational reliability, even at high differential pressures, is ensured by the arrangement of the bearings outside the compression chamber.Air/gas is taken in through the inlet and enters the side channel. The rotating impeller imparts velocity energy into the air/gas in the direction of rotation. Centrifugal force in the impeller blades accelerates the air/gas outward, increasing pressure.Kinetic energy is imparted with every rotation resulting in further pressure increase. The side channel narrows at the rotor, sweeping air/gas off the impeller blades and discharging it through the outlet silencer where it exits the blower.
The regenerative revolution - Volume flow up to 520 cfm and differential pressure up to 420 in. H₂O. With its significantly expanded range of performance and lower noise levels, the regenerative technology can now be used in completely new fields of application that were previously unimaginable. They deliver 40,000 operating hours between service and are virtually maintenance free.
Please contact CompreVac for application assistance with regenerative blowers and associated equipment.
Please contact CompreVac for application assistance with regenerative blowers and associated equipment.
The regenerative revolution - Volume flow up to 520 cfm and differential pressure up to 420 in. H₂O. With its significantly expanded range of performance and lower noise levels, the regenerative technology can now be used in completely new fields of application that were previously unimaginable. They deliver 40,000 operating hours between service and are virtually maintenance free.
Please contact CompreVac for application assistance with regenerative blowers and associated equipment.
The regenerative revolution - Volume flow up to 520 cfm and differential pressure up to 420 in. H₂O. With its significantly expanded range of performance and lower noise levels, the regenerative technology can now be used in completely new fields of application that were previously unimaginable. They deliver 40,000 operating hours between service and are virtually maintenance free.
Please contact CompreVac for application assistance with regenerative blowers and associated equipment.
Please contact CompreVac for application assistance with regenerative blowers and associated equipment.
Oil-free, contact-free regenerative blowers for industrial pressure and vacuum applications. CompreVac supplies and supports the Elmo Rietschle G-BH range for aeration, conveying, packaging, industrial process and machine applications throughout Canada.
Industrial regenerative blower technology supplied and supported by CompreVac.
Elmo Rietschle G-Series regenerative blowers provide oil-free pressure or vacuum from a contact-free side channel design. CompreVac supplies blowers, application engineering, accessories, controls, replacement equipment and service.
Regenerative blowers, also known as side channel blowers, generate continuous airflow without contact between the rotating impeller and the blower housing.
Air enters through the inlet and is accelerated repeatedly by the rotating impeller. Each pass through the side channel adds energy to the air, progressively increasing differential pressure before discharge.
Because the impeller does not contact the compression chamber, G-Series blowers provide clean, oil-free airflow with very low routine maintenance. The same basic technology can be used for either pressure or vacuum duty.
Elmo Rietschle side channel blowers combine simple construction, continuous airflow and broad operating flexibility.
The impeller operates without mechanical contact inside the compression chamber.
G-Series blowers can be applied to either positive-pressure or vacuum duty.
Contact-free operation minimizes wear and routine maintenance requirements.
Many G-Series machines can use variable-frequency control to match airflow to demand.
From compact electronically controlled blowers to high-flow multi-stage industrial machines, the G-Series covers a broad range of pressure and vacuum duties.
The compact G-BH100 provides controlled low-flow regenerative blower performance for applications where space, efficiency and continuously variable speed are important.
The two legacy G-BH100 individual datasheet links on the existing page currently return 404 errors, so they have not been carried into this rebuild.
The G-BH1 is the established industrial side channel blower family, providing a broad range of airflow and differential pressure options for both pressure and vacuum applications.
The G-BH2 VELOCIS extends regenerative blower technology into demanding high-differential-pressure applications while retaining smooth, pulsation-free operation and a compact industrial package.
G-BH7 blowers combine compact construction with higher differential pressure capability and variable-speed operation for demanding industrial pressure and vacuum applications.
The G-BH8 uses high-speed regenerative technology to provide substantial airflow and differential pressure from a smaller and lighter package than many conventional side channel blowers.
Air enters the blower inlet and passes into the side channel. The motor-driven impeller repeatedly accelerates the air outward, adding energy during each rotation and progressively increasing differential pressure before the air reaches the discharge.
Side channel blowers are particularly useful where continuous high-volume airflow is required at moderate pressure or vacuum.
Continuous low-pressure air for aeration, agitation and treatment processes.
Pressure or vacuum transport of powders, pellets and process materials.
Vacuum and low-pressure air for automated packaging equipment.
Continuous airflow for drying, cooling, cleaning and blow-off applications.
High-flow vacuum for handling porous materials and industrial products.
General-purpose pressure and vacuum generation for OEM and process equipment.
Elmo Rietschle has a long history in regenerative side channel blower technology, supplying industrial pressure and vacuum machines for applications around the world.
CompreVac supplies G-Series regenerative blowers with local application support, accessories, controls, replacement equipment, parts and service.
For a new blower application, CompreVac can evaluate required airflow, pressure or vacuum, duty cycle, ambient conditions, inlet filtration, relief requirements and control method as part of the complete system.
A regenerative blower, also called a side channel blower, uses a non-contacting rotating impeller to repeatedly accelerate air through a side channel and build differential pressure.
The same blower technology can be used for either pressure or vacuum duty. The required operating point must be matched to the blower's published performance curve.
Yes. The compression process does not require lubricating oil in the air path, making regenerative blowers suitable for many applications requiring clean process air.
The overall G-Series includes machines ranging from very small compact blowers to large industrial units. The published CompreVac range extends to approximately 1,766 cfm at 60 Hz depending on model and operating point.
Differential pressure depends heavily on the selected blower and airflow. Higher-performance G-Series designs can reach substantial differential pressures while maintaining continuous airflow.
Many G-Series blowers are suitable for variable-frequency operation, allowing blower speed and airflow to be matched more closely to process demand.
Routine maintenance is generally low because the impeller operates without contact inside the compression chamber. Proper inlet filtration and operating within approved pressure and temperature limits remain important.
Selection should be based on required airflow at the actual differential pressure or vacuum, ambient conditions, inlet restrictions, duty cycle and system pressure losses rather than free-air capacity alone.
Yes. CompreVac can evaluate airflow, pressure or vacuum, duty cycle, piping losses and application conditions to help select the appropriate Elmo Rietschle G-Series blower.
Yes. CompreVac provides industrial blower troubleshooting, replacement equipment, parts, field service and workshop repair support.
Speak with CompreVac about G-BH100, G-BH1, G-BH2, G-BH7 and G-BH8 side channel blowers for pressure and vacuum applications.