Regenerative Blowers

Regenerative BlowersRegenerative blowers are a compact and efficient alternative to large multi-stage or positive displacement blowers. Gasho can meet your application needs with regenerative blowers in numerous configurations, developed to meet specific application requirements.

AMETEK ROTRON® has long been a leading name in regenerative blower technologies, with product benefits including quiet, maintenance-free, and oil-free operation. Whether industrial, chemical processing, or environmental, each variety of regenerative blower has specific features to meet particular application needs.

Regenerative Blowers Features

Industrial

  • Rugged cast aluminum housing, cover, impeller, and muffler tower
  • Removable cast iron flanges bolted to a sheet metal manifold
  • TEFC motors on single-ended models, ODP motors on all double-ended models
  • Carbon steel shaft and zinc plated hardware
  • Permanently sealed motor bearings for 20,000-25,000 hours life

Chemical Processing

  • “Chem-Tough™ Teflon anodize (surface conversion) inside and outside on housing, cover, impeller, and heavy duty cast manifold
  • Teflon® lip seal in a stainless steel case standard for leakage containment to 25 cc/min or less
  • Chemical Duty motors with 303 stainless steel motor shafts
  • Stainless steel hardware throughout
  • Nickel plated flanges and muffler retainers

Environmental Processing (EN)

Same as the industrial blowers with additional features:

  • Heavy duty cast aluminum manifold
  • Our spark resistant housing, cover, impeller, muffler tower, and manifold are vacuum impregnated
  • Teflon® lip seal in a stainless steel case standard for leakage containment to 25 cc/min or less
  • Explosion-proof motors standard and available in a variety of world voltages
  • All metal-to-metal surfaces are sealed with RTV sealant
  • Various UL explosion-proof listings

Regenerative Blowers Product Listing

Regenerative Blowers Performance Curves (View PDF)

Industrial / Chemical Processing Blowers (expandcollapse)

DR 068.125 HP Regenerative Blower
DR 083.125 HP Regenerative Blower
DR 101 & CP 101.33 HP Regenerative Blower
DR 303 & CP 303.33 HP Regenerative Blower
DR 202 & CP 202.33 HP Regenerative Blower
DR 3335.0 HP Regenerative Blower
DR 353 & CP 353.75 HP Regenerative Blower
DR 404 & CP 4041.0 HP Regenerative Blower
DR 43311.5 HP Regenerative Blower
DR 454 & CP 4541.5 HP Regenerative Blower
DR 505 & CP 5052.0 / 3.0 HP Regenerative Blower
DR 513 & CP 5131.5 HP Regenerative Blower
DR 523 & CP 5233.0 HP Regenerative Blower
DR555 & CP 5553.0 / 4.0 HP Regenerative Blower
DR6 & CP 63.0/ 5.0 HP Regenerative Blower
DR 633 & CP 6335.0 / 7.5 HP High Pressure Regenerative Blower
DR 656 & CP 6563.0 / 4.0 / 5.0 HP Regenerative Blower
DR 757 & CP 7574.0 / 5.0 HP Regenerative Blower
DR S77.5 HP High Pressure Regenerative Blower
DR 808 & CP 8085.0 / 7.5 HP Regenerative Blower
DR 833 & CP 8337.5 / 10.0 HP Regenerative Blower
DR 858 & CP 8587.5 / 10.0 HP Regenerative Blower
DR P915.0 / 20.0 HP Regenerative Blower
DR S915.0 / 20.0 High Pressure Regenerative Blower
DR 909 & CP 90910.0 / 15.0 Regenerative Blower
DR 979 & CP 97915.0 / 20.0 HP Regenerative Blower
DR 1233 & CP 123320.0 / 30.0 HP High Pressure Regenerative Blower
DR P1320.0 / 30.0 HP Regenerative Blower
DR S1320.0 /30.0 HP High Pressure Regenerative Blower
DR 14& CP 14 20.0 / 25.0 / 30.0 HP Regenerative Blower
DR P1540.0 / 60.0 HP Regenerative Blower
DR S1540.0 HP High Pressure Regenerative Blower

Environmental / Chemical Processing Blowers (expandcollapse)

EN 101 & CP 101.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 303 & CP 303.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 404 & CP 4041.0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 454 & CP 4541.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 505 & CP 5052.0 / 2.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 513 & CP 5131.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 523 & CP 5233.0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 6 & CP 65.0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN / CP 633 & EN / CP 8337.5 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 656 & CP 6563.0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 757 & CP 7573.0 / 5.0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 757, EN 808 Single-Phase/CP OptionsSealed Regenerative Blower w/ Explosion-Proof Motor
EN 808, CP 808 Three-Phase/CP OptionsSealed Regenerative Blower w/ Explosion-Proof Motor
EN 858 & CP 8587.5 / 10. 0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 909 & CP 90910.0 / 15.0 0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 979 & CP 97920.0 0 HP Sealed Regenerative Blower w/Explosion-Proof Motor
EN 14

Regenerative Blower Accessories (expandcollapse)

Filtration – Inlet Filter (Single Connection)
Filtration – Inline Filter (Dual Connection)
Filtration – Filter Silencers (Single Connection)
Filtration – Filter Element
Filtration – Moisture Separator
Measurement – Air Flow Meter
Measurement – Digital Flowmeter
Noise Reduction – Sound Attenuating Enclosures
Noise Reduction – Inlet/Outlet Muffler (Single Connection)
Noise Reduction – Inline Muffler (Dual Connection)
Protection – Relief Valve – Mechanical
Protection – Pressure Regulating Diaphram Valve
Protection – Gauges
System – Variable Frequency Drive
System – Air Knives
System – 5 Way, 3 Port, 2 Position Diverter Valve
System – Air Flow Switch

Regenerative Blower FAQ

How is a regenerative blower used?

Regenerative blowers are often used in chemical or environmental processes, as well as in lifting, packaging, and conveying applications. They efficiently remove dust and smoke, provide soil vapor extraction, and are also effective sewage aeration.

Is the regenerative blower more expensive than other blower options?

The answer to this question can vary depending on the application. Regenerative blowers can lower maintenance cost compared to other blowers because they do not require oil, and are capable of handling small amounts of material or vapor that might be problematic for other technologies.

Can you describe the device concept of a regenerative blower?

As the impeller blades pass the inlet port, it draws air or other gases into the blower. Then the impeller blades accelerate the air outward and forward through centrifugal force. The regenerative principle happens as the air is turned back by the annular shaped housing to the base of the following blades, where it is again forced outward. Each regeneration increases pressure to the air.

The pressures or vacuums generated by each spinning, non-contacting, oil-free impeller are equal to those obtained by many larger multi-stage or positive displacement blowers.

What key components make regenerative blowers better/worse than other blowers?

Characteristics that make regenerative blowers preferable to other options include minimum maintenance requirements, no friction between blower impellers and blower housing, much quieter operation.

Regenerative blowers can also offer greater efficiency with a longer service life, when properly maintained. They are ideal for low-pressure applications where minimal noise generation is preferred.

Gasho will assist you in developing a regenerative blower system that will best meet your specific application needs. Contact us to discuss your project.