Quote Originally Posted by Richard
I forwarded this link to Mike at pm. Hopefully he'll get time to help you out before to long. He gets pretty busy during the week.
Thanks Richard!

From further searches I think it's probably a CV626. What I have read says that it comes with a valve that goes between the two inlets but I do not know what kind, if there is anything missing and what for....

Perhaps counter current? If so, I wonder why it was all removed?

Again......a mystery....