Originally Posted by icemeister
And[y Schoen may know about these...unless they were before his time.
I was TEV product mangler when this valve was developed.

Originally Posted by icemeister
That's what I remember alright.

These Y-valves were only used for cases with Koolgas and no distributor, so the TXV was internally equalized. Here's a pic I found of the Y-920:

The Y936 is an ODF version of this valve, and using the EBF body instead of the BG

Originally Posted by icemeister
I think I'd just cut all that out and replace it with a standard balanced port valve and a bypass check valve.