Coating a soft water tank
Coating a soft water tank
(OP)
1) Coating suggestions for a soft water tank?
We are planning to install a soft water tank in between our water softener and dearator on our boiler feedwater. It will also have a recovered condensate stream coming to it.
I was suggested to go with a carbon steel tank with an interior coating. Tank would be atmospheric, 160F max. Coating would protect from pitting caused by dissolved oxygen in the water.
We are planning to install a soft water tank in between our water softener and dearator on our boiler feedwater. It will also have a recovered condensate stream coming to it.
I was suggested to go with a carbon steel tank with an interior coating. Tank would be atmospheric, 160F max. Coating would protect from pitting caused by dissolved oxygen in the water.





RE: Coating a soft water tank
This material is highly resistant to a range of harsh conditions.
http://www.welding-advisers.com/
RE: Coating a soft water tank
I hope the tank is large enough to allow access for good surface preparation and QA.
RE: Coating a soft water tank
Would teflon also work? The temp is onl 160°F.
RE: Coating a soft water tank
RE: Coating a soft water tank
RE: Coating a soft water tank
I am sure that if you can find an International Paint rep in your area he could look at your application and guide you in the right direction.
RE: Coating a soft water tank
Our steam plant is actually mostly makeup water. We're now going to be recovering condensate from our Alky unit, and so this tank serves as a precautionary measure (in addition to other measures) to avoid process contaminating our steam.
RE: Coating a soft water tank
There are companies that will supply a tank/pump combination for this specific corrosive service. They are commonly called "condensate recievers", replaced about every five years, and you would find them in college, hopsital etc district heating service.
Interesting, corrosive things happen when you combine the returned condensate with the softened make-up......
Common MOC are cast iron, heavy walled carbon steel, 304SS and epoxy coated CS.
See:
http://www.envirosep.com/dload/ECPL-S.pdf
for one...
-MJC