High Pressure Sodium Hyperchlorite injection

[misco41]

Can anyone advise ?

I have a situation where I need to dose sodium hyperchlorite into a trunk main supply with operating pressures in the range 18 - 22bar.

This resticts me from using a standard PVC lance as these are only rated to 16bar. I have been told that a titanium lance would be suitable as this would accommodate the high pressures and is resilient to Cl.

Would this be the solution ? Any guidance would be appreciated.

 

[semo]

Do a lookup for "injection quill" on the web. You will find many companies with many different quills. Saftflo is one of those companies with various injection assemblies/parts.

You can get them in PVC, Polypropylene, S.S., Hastelloy, etc. The S.S. and Hastelloy will hit pressure ranges higher than what you are talking and they should handle the CL.

 

[Tonka73]

Misco 41

Hypo will eat the stainless steel (any grade) injection lance/ Quill

But Hastelloy C as I remember is good for chlorine gas and Sodium Hypochlorite.

Hope this helps

 

[misco41]

semo / Tonka73,

Many thanks for your reply. I have been advised that Hastelloy is extemely difficult to machine, and work hardens terribly ? Any commnets...

 

[guvs]

You could probably find a made-up lance. Try Nalco

 

[hydrae]

misco41
Hastelloy injection quills (ready to go) are available in USABluebook, stock #29384 for the 0.5 inch size for $235

http://www.usabluebook.com

Hydrae