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Difficulty with plastic valves

Difficulty with plastic valves

Difficulty with plastic valves

(OP)
I am from Australia and am having problems sourcing plastic check valves and three way valves which are suitable for 8 x 5 hose.  I am using these components for a dosing system whereby the three way valve will allow me to divert flow from two different source tanks (each with a different pump) to a common discharge point.  The chemicals I'm using are nitric acid and palladium.  Any suggestions as to where I could get valves these small or if there is an alternative set-up.  Thanks Guys

RE: Difficulty with plastic valves

8x5 hose?  Is that 8mm o.d. x 5mm i.d.?

Nitric acid?  What strength?  This may limit your choices significantly.

Lastly, palladium is not a fluid - unless its powdered?  You probably mean some kind of palladium solution, such as chloride or fluoride?

That said, try:

www.mcmaster.com - look at their catalog page 389 for check valves that might work.

3-way valves?  Why not two two-way valves and a Y-fitting, that might be easier to find.

RE: Difficulty with plastic valves

(OP)
8x5 hose?  Is that 8mm o.d. x 5mm i.d.?
-Yup

Nitric acid?  What strength?  This may limit your choices significantly.

-40 % nitric acid solution


Lastly, palladium is not a fluid - unless its powdered?  You probably mean some kind of palladium solution, such as chloride or fluoride?

-Yup it is palladium chloride

3-way valves?  Why not two two-way valves and a Y-fitting, that might be easier to find.

-Thanks for the suggestion.  The main difficulty is finding a supplier here in Australia which stocks valves for hoses as small as what we're using

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