Lack of CV limit and what to do about it

[Jeffy]

How should one go about selecting a solenoid valve that has a higher cv limit?
What things should you look for when buying one?

I imagine, most teams have a similar knowledge base on this as I do. Which is, this is the solenoid we use because we have to. Now that we can select our own, what do we do?

[DonRotolo]

First, what function does it need? Single, double, whatever.
Second, does it comply with the rules (e.g., 1/8" NPT input)?
Third, can you afford it?

Note that the 'regular valves we always used' are pretty good for the 0.160" ID tubing we get to use, having a significantly larger Cv isn't going to do much.

[Dad1279]

Originally Posted by DonRotolo

First, what function does it need? Single, double, whatever.
Second, does it comply with the rules (e.g., 1/8" NPT input)?
Third, can you afford it?

Note that the 'regular valves we always used' are pretty good for the 0.160" ID tubing we get to use, having a significantly larger Cv isn't going to do much.

True, but there was an inexpensive valve (less than $40) that I recall finding a few years ago that we could not use because of Cv either being slightly higher or the spec was unavailable..... now if I could only remember where it was.....

This opens up a larger selection, and simplifies the documentation for teams and inspectors, with minimal change in performance.