Duct restrictions at fans
 

Ducts significantly smaller than the fan diameter create turbulence if transitions connect directly to fan.

 

Don't

Don't

An abrupt duct expansion at fan inlet causes air separation from the duct, starves the impeller tips, creates turbulence, reduces performance and generates increased noise.

 
Do

Do

Duct expansions on the inlet to axial flow fans should be avoided where at all possible.

If essential the transition should have an included angle of not more that 15º

 

 

Propriety information courtesy of FANTECH (Australia)
(NOT TO BE REPRODUCED)
History

AMS started trading late in 1994 with Duncan Burl at its helm, ...

History

Our Partners

Kruger products are licensed to ...

Our Partners

Company Profile

Air Movement Supplies provides a range, backed by ...

Profile

Ads

AMS marketing ...

Ads

Certificates

ISO, EC etc ....

Certificates

News

CTN, JHB & DBN news ...

News