[Jewelry making - Article 00229] - Re: [Orchid] Shop Setup and Ventilation

[Neilthejeweler]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

    If you're concerned about too much suction and where to place the
    inlet(s) this comes to mind... 

    Sounds like you've got a pretty big fan, it should pull some big
    CFMs. I might consider mounting the motor and fan away from your work
    area...like near the outlet. Construct ductwork to two (or more)
    major stations, the bench(put the inlet low and in front of you, to
    pull the fumes away from your face, the stove hood won't work for
    this) and your buffing area(if you have a buffer with fan and filter
    you could still have an inlet attached to the filter outlet). 

    You could build into the ducts adjustable bleed-off valves. If you
    have too much suction at point A you just open the bleed off
    vent(which you maybe could use outside air for this to save heating
    and A/C costs. If you find that there is not enough suction to run
    both work stations simultaneously you could shut down one station in
    a similar manner. 

    Sounds complicated I know, but I had a similar setup years ago and
    it worked pretty well. The longer your runs of duct the more
    important it is to have staged duct sizes. for example 8" near the
    fan stepping down to maybe 6 or 4 inch at the outlets or whatever is
    appropriate for the CFM rating and the distance. For dust control
    you'll need smaller diameter ducts (but not too small) to keep a high
    relative velocity so the particles remain in suspension. 

    Before investing in steel or aluminum ducts you might run a test of
    your layout with flexible duct. Its cheaper and you could make
    modifications easily enough to fine tune. I don't know if the flex
    duct will hold up long term. 

Whew! my brain is tired now.
____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________