I've been using the Kooltronics blowers
for some time in various amps. I have a
drawer full of Dayton blowers that are
so far out of balance that they will
walk themselves off the bench when
running. The only problem with the
Kooltronics centrifugal blowers is that
the smallest one, (KBB25) is almost
overkill for 1500 watts SSB in low back
pressure designs. On the smaller
blowers the motors may be balanced but
the wheels are plastic and don't appear
to be balanced after manufacture but are
quiet. The price of these blowers IS
painful but not having to worry about
them once installed is worth it.
Paul
PAUL HEWITT
WD7S PRODUCTIONS
QRO HOMEBREW COMPONENTS
http://wd7s.home.att.net
> -----Original Message-----
> From:
> amps-admin@contesting.com
> [mailto:amps-admin@contesting.com]On
> Behalf Of Richard
> Sent: Wednesday, March 27,
> 2002 6:31 AM
> To: Lynn; AMPS
> Subject: Re: [Amps] Dayton fans
>
>
>
>
> >
> >I am going to purchase one
> of the following dayton blowers:
> >
> >4c446 or 4c006
> >
> >Any comments on the noise
> level of these blowers? I am
> replacing a
> >4c004, which is undersized
> for my current application.
> >
> ? Kooltronics®, in Ventura,
> CA, makes two, types of blowers for
> high-pressure applications:
> radial-wheel, and large
> diameter/narrower
> wheel squirrel-cage types.
> The pressure ability of the
> radial-wheel
> type is up to six (6) inches
> of water column, which is
> roughly double the
> ld/nw type. However, the
> trade-off is that
> radial-wheel =s less volume.
> - Unlike consumer-product
> blower manufacturers,
> Kooltronics uses
> high-efficiency capacitor-run
> motors that run cool to the
> touch. Also,
> all moving parts are
> electronically-balanced to
> reduce vibration.
> However, 'mo betta costs 'mo $$.
>
> cheers, Lynn
>
> - R. L. Measures, a.k.a.
> Rich..., 805.386.3734,AG6K,
> www.vcnet.com/measures.
> end
>
> ______________________________
> _________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/ma
ilman/listinfo/amps
|