Side Channel Blowers


Side channel blowers (also called ring blowers, regenerative blowers, Vortex blowers and sometimes even turbine blowers) are the first choice for applications requiring large volumes of clean, dry air at moderate pressures and vacuums (< 1Bar). We supply the Goorui brand of regenerative blower.

Goorui side channel blowers

Please visit our online store to purchase from a select range of stocked regenerative side channel blowers.

Goorui brand side channel regenerative blowers come from Dongguan Foershen Intelligent M&E Co ltd, an
ISO9001 company, with nearly 72 production technology patents and a long-life, high quality product.

We stock single stage (1R) and double stage (2R) (GHBH models) side channel blowers; single stage for high air flow and multi stage for high pressure (GHBG models). The regenerative action of multi-stage air blowers with two or more impellers enables more air or pressure for the same kilowatt of energy input. The South African-suited blower motors are 50Hz, IP54 F class, CE, and are RoHs certified.

Goorui blowers also offers special customized series and tailor-made products including PCB acid and alkali resistant solution, anti corrosion blower and anti explosion or explosion proof air blowers (ATEX, explosion-proof).

Side channel blowers can also function as vacuum pumps or vacuum blowers. They can generate significantly higher pressures than industrial fans. They are used for both vacuum and pressure applications. A side channel blower generates lower air flow than, for example, centrifugal fans, but delivers over a wide air pressure range. They are a low noise choice (compared to positive displacement blowers).

Factors to consider for blower selection are mainly on the discharge side include outlet pipe diameter and distance, bends and elbows, application (such as medium viscosity (e.g. water) & depth), altitude and air release nozzles or release mechanism.

On the intake side, blocked air filters can affect the blower delivery.

Goorui side channel blower curves

Ecotao will select an air blower from the below curves according to your specific need and application. 100mbar is the same as aerating to one meter of water.

Click on the image to enlarge

Two stage versus single stage blowers

The “2R” coded blowers are two-stage blowers. They have two impellers, that enable the blower to maintain pressure over a wider pressure range. A two stage blower is more efficient at higher pressure ranges compared to a similar kilowatt single phase blower. Two-stage regenerative blowers deliver more pressure or vacuum than a single-stage blower of the same kilowatt – at  the generally used upper end of their performance curve. Open the Series 7 range of blowers and compare the performance of the various 2.2kw blowers. Above 150mbar pressure, the 2R7 outperforms every other blower on this chart, so it the the range we tend to stock.

The various air pressure conversions are from the site,

millibars [= hPa]
pascals [Pa]
kilopascals [kPa]
megapascals [MPa]
inches of water
mm of water
inches of mercury
mm of mercury
feet of water
kg / cm2
pound/inch2 [psi]


Complete model list for Goorui regenerative side channel blowers

Model data sheet links:

Files to download


CE Certificate GOORUI
ISO 9001:2015 Certificate GOORUI
RoHS Certificate GOORUI
TUV Rheinland Certificate GOORUI
Int. Trademark Certificate GOORUI


GHBH 0D3 12 1R1
GHBH 0D5 12 1R2
GHBH 0D5 12 AR2
GHBH 001 12 2R2
GHBH D73 12 1R3
GHBH 001 12 1R3
GHBH 0D5 34 1R2
GHBH 0D5 34 AR2
GHBH 001 34 AR2
GHBH 001 34 2R2
GHBH D73 34 1R3
GHBH 001 34 1R3
GHBH D73 34 AR3
GHBH 001 34 AR3
GHBH 1D2 34 2R3
GHBH 1D7 34 2R3

Tech datasheet serie 4-5

GHBH 001 12 1R4
GHBH 1D2 12 1R4
GHBH 1D7 12 1R4
GHBH 1D2 12 AR4
GHBH 1D7 12 AR4
GHBH 002 12 2R4
GHBH 1D7 12 1R5
GHBH 002 12 1R5
GHBH 1D7 12 AR5
GHBH 002 12 AR5
GHBH 001 34 1R4
GHBH 1D2 34 1R4
GHBH 1D7 34 1R4
GHBH 001 34 AR4
GHBH 1D2 34 AR4
GHBH 1D7 34 AR4
GHBH 002 34 2R4
GHBH 003 34 2R4
GHBH 1D2 34 1R5
GHBH 1D7 34 1R5
GHBH 002 34 1R5
GHBH 003 34 1R5
GHBH 1D2 34 AR5
GHBH 1D7 34 AR5
GHBH 002 34 AR5
GHBH 003 34 AR5
GHBH 004 34 2R5
GHBH 5D5 36 2R5


GHBH 002 34 1R6
GHBH 003 34 1R6
GHBH 004 34 1R6
GHBH 002 34 AR6
GHBH 003 34 AR6
GHBH 004 34 AR6
GHBH 002 34 1R7
GHBH 003 34 1R7
GHBH 004 34 1R7
GHBH 5D5 36 1R7
GHBH 002 34 AR7
GHBH 003 34 AR7
GHBH 004 34 AR7
GHBH 5D5 36 AR7
GHBH 003 34 2R7
GHBH 004 34 2R7
GHBH 5D7 36 2R7
GHBH 7D5 36 2R7
GHBH 010 36 2R7
GHBH 5D7 36 BR7
GHBH 7D5 36 BR7
GHBH 010 36 BR7
GHBH 003 12 1R7


GHBH 5D7 36 1R8
GHBH 7D5 36 1R8 IE3
GHBH 010 36 1R8 IE3
GHBH 5D7 36 AR8
GHBH 7D5 36 AR8 IE3
GHBH 010 36 AR8 IE3
GHBH 7D5 36 2R8
GHBH 015 36 2R8
GHBH 020 36 2R8
GHBH 010 36 BR8
GHBH 015 36 BR8
GHBH 011 36 1R9
GHBH 017 36 1R9 IE3, IP55
GHBH 025 36 1R9 IE3, IP55
GHBH 011 36 AR9
GHBH 017 36 AR9 IE3, IP55
GHBH 025 36 AR9 IE3, IP55
GHBH 017 36 2R9
GHBH 022 36 2R9
GHBH 027 36 2R9
GHBH 034 36 2R9
GHBH 020 36 BR9
GHBH 027 36 BR9
GHBH 034 36 BR9
GHBH 020 36 BW9
GHBH 027 36 BW9
GHBH 034 36 BW9
GHBH 010 36 2R8


GHBG D73 12 1R2
GHBG 002 12 2R2
GHBG 1D2 12 1R3
GHBG 002 12 2R3
GHBG 1D7 12 1R4
GHBG D73 34 1R3
GHBG 1D2 34 1R3
GHBG 1D7 34 2R3
GHBG 002 34 2R3
GHBG D73 34 1R2
GHBG 1D2 34 2R2
GHBG 002 34 2R2
GHBG 1D7 34 1R4
GHBG 002 34 2R4
GHBG 4D4 34 2R4
GHBG 002 34 1R5
GHBG 003 34 1R5
GHBG 003 34 2R5
GHBG 5D5 36 2R5
GHBG 003 34 1R6
GHBG 4D4 34 1R6
GHBG 4D4 34 2R6
GHBG 7D5 36 2R6
GHBG 010 36 3R6