Flow Indicator/Meter materials

[Sabot]

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]

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]

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.

 

[JasonLion]

A number of people here are using the Blue and White 300 series flow meters without problems.