[TheForge] Electric Blower question

[Bob Willman]

	I think you will find that most squirrel cage blowers will have
maximum load on the motor with no air restriction and will probably overload
the motor if run wide open. Some back pressure is required to improve
efficiency. 


Bob Willman
Bowling Green, Ohio
The Eagle's Anvil
WB8NQW

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Keith Holmes
Sent: Wednesday, January 11, 2006 9:48 PM
To: Sponsored by ABANA
Subject: Re: [TheForge] Electric Blower question

Try putting your gate on the air intake and not the output. If you are using
a squirrel cage blower and cover the output you increase the load on the
motor and could cause it to overheat.

I had the same situation with a Dayton squirrel cage blower. I have to say
that with the intake covered completely there is still to much air being
moved.

I plan to rework the blower when I construct my side draft hood and exhaust
the "waste" air into the hood

Keith Holmes
Sparky's Forge


----- Original Message -----
From: "TOOL GYPSY" <toolgypsy at hotmail.com>
To: <theforge at mailman.qth.net>; <The_Anvil at yahoogroups.com>
Sent: Wednesday, January 11, 2006 6:16 PM
Subject: [TheForge] Electric Blower question


> Hello all
>    I installed an electric blower with a reostat on my forge. When on the 
> lowest speed it is still running a bit to much air so i added an 
> airgate.this works fine except the motor tries to compensate by speeding 
> up a tad or three like a vacumn clener with your hand over the hose.My 
> question is,  should i ignore this and see what comes of it.will this 
> overheat the motor? or should i reroute the air to exhaust when the gate 
> is closed ?
>   Paddy P the wannabe
>
>                                                          Nova Scotia 
> Canada
>
>
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