Flow Indicator/Meter materials

Sabot

LifeTime Supporter
Aug 2, 2007
343
Austin, TX
#1
As I am searching for a flow indicator/meter, I have come across a few meters which use 316 stainless steel ball bobbin. How does 316 stainless steel react to pool chemicals?

Anyone have names for manufacturer whom make flow meters/indicators which will work with the pool chemicals and can be sited outdoors?
 

duraleigh

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In The Industry
Apr 1, 2007
31,333
Sebring, Florida
#2
For almost 8 months, I worked on a chlorine device for pools (that I could never get to work well enough to market). In so doing, I tried to work with 316 stainless and 316 teflon coated stainless.

Chlorine will VERY rapidly corrode those items @ 10% strength.

How well it would hold up at 3ppm is certainly a whole different animal but I would think that might work pretty well given the performance of ladders, etc. found in everyday pools.
 

Sabot

LifeTime Supporter
Aug 2, 2007
343
Austin, TX
#3
Have you tested any which are made out of PVC, PE and other plastics?

Blue-White seems to have a number of flow meters. I know many semiconductor companies but they are high price and for an ultra pure environment. Some have lower cost PVC (and other plastics) with 316L stainless steel ball bobbin.