Hi Gary:
        What kind of valve do you have? Is it a ball valve, gate valve. Having the right valve that is going to work 100% of the time at high temp is critical. I would say, if it is  possible without much risk of the valve failing, the speediest way to empty the solder tank is by pouring instead of scooping.
        Regards,
        Ramon


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Gary Camac
Sent: Thursday, April 21, 2005 3:24 PM
To: [log in to unmask]
Subject: Re: [TN] Wave Solder Pot Draining Best Practices


Sorry, I been busy and couldn't reply to this.  I have dropped solder
numerous time over the last thirty years.  I agree with using the
aluminum baking pans -real ones not  the one time use foil jobbies.
But, you guys a scaring me with all the ladling and moving of pans.  I
have always adapted a pipe to extend the machine drain to a height that
is slightly greater than the height of the aluminum pan.  Then  you can
slide a pan under - open the drain valve to fill - shut off the valve
and slide the pan out, using pliers to move the pan - repeat ad nauseam.

Caution - the down  spout  pipe should be bigger than the machine's to
prevent its plugging and your plant's flooring material may need to be
considered.

Gary Camac

Anderson, Greg (GE Infrastructure) wrote:

>TechNet:
>
>We are going to drain and clean a wave solder pot in preparation for conversion to lead-free solder.
>
>We have not completely purged a wave solder pot in some time, and the people in the know have moved on.
>
>Does anyone have "best practices" recommendations for draining and handling the solder (other than BE VERY CAREFUL ! ) ?
>
>Greg Anderson
>GE Fanuc Automation
>Charlottesville, VA
>
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