Ross & Hyd: Yes, hydofluosilicic acid is nasty with a pH <1. Commonly used to fluoridate potable water.
Good points - the current method of operation is to manually drain the hose/line with a drain valve/check valve arrangement into a waste tank.
Air was suggested to improve safety re the...
BigInch: I will look into some 2-phase flow calcs. Your description is helpful also - I guess at worst the air flow rate can be adjusted by the operator to get the best air to liquid ratio.
Zapster: That will keep me busy, and I was having troubles finding relevant search terms, ta.
JStephen...
Greetings,
We are looking at using compressed air to remove liquid from a transfer line. I'm having some problems working out how much air we will require for this (and hence whether it will work).
The line in question runs between a delivery tanker truck and a storage tank. After delivery...
