Demin. Water Tank - Top or Bottom Inlet?
Demin. Water Tank - Top or Bottom Inlet?
(OP)
I am building a new demineralized water tank to supplement an existing tank. The existing tank has the inlet at the top. Going into the top of the tank increases cost by adding a long stainless steel riser to the top of the tank. Are there good process reasons for doing this?
The tanks will be fed by ion exchange demineralizer trains. Is it beneficial to have constant back pressure on the demin. trains? Are there other reasons for placing the inlet at the top of the tank? The two tanks will have separate inlet headers which are not hydraulically linked.
The tanks will be fed by ion exchange demineralizer trains. Is it beneficial to have constant back pressure on the demin. trains? Are there other reasons for placing the inlet at the top of the tank? The two tanks will have separate inlet headers which are not hydraulically linked.





RE: Demin. Water Tank - Top or Bottom Inlet?
Matt
RE: Demin. Water Tank - Top or Bottom Inlet?
As I recall we make and take from the lower part of the tank just above the bottom.
RE: Demin. Water Tank - Top or Bottom Inlet?
- Reduce foaming for certain liquids
- Reduce dangerous static charge build-up for other liquids
- Prevent shell erosion (for H2SO4 and similar liquids)
and of course, when combined with a siphon beaker hole backflow can be prevented.
I see no reason for a riser pipe for this services...
Anyone ???
-MJC
RE: Demin. Water Tank - Top or Bottom Inlet?
The biggest concern with the tank is absorption of carbon dioxide and oxygen from the air into the water.
Most systems do not have a top fill. Unless of course, you are filling from a gravity tank, like an old steam engine.