Hi Peter, I would check the venting system and how much draw you are getting
to pull off the fumes. With the wash tank at 135F and with a good venting
system it's not improbable to draw the material out of the wash tank. The
other item I would look at would be the drag out by the product as it is
going through the system.

Not knowing the product configuration, lots of connectors could be a cause
of this lost.

Good Luck

Leo Lambert
EPTAC Corp.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of peter lee
Sent: Thursday, January 24, 2002 12:11 PM
To: [log in to unmask]
Subject: [TN] Noclean process chemistry loss


Hello,

We are trouble shooting our Stolting in-line cleaning
machine and no-clean washing process. We have been
seeing significant solvent (Kyzen) and water loss
(~3.5 gallon per hr) in the wash tank. The wash tank
was running @135F/75 psi. Chemistry concentration
remains relatively constant after wash.

So far we have tried the following to eliminate
possibilities of leakage and drainage: shutting off
all overflow drain valves/ Air knifes were installed
to isolate the wash tank from both sides. Auto
refilling was cutoff during measurement run.

My question: Has anyone experienced and trouble shot
this problem before? How significant is the loss due
to evaporation? Any suggestion would be appreciated.

Rgds,
Peter

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