Adding a valve, how important is GPM matching pump output.

[xtn]

That does seem to be the whole problem we are having.

Darn semantics.

Yes. Thanks to those who have contributed to this thread I have learned:

1. A reasonably passible layman's understanding of the variety of hydraulic control valves and their functionality, and...

2. That I had better consult a manufacturer's documentation to discover what they're calling the item I want before I place an order!

 

[EMB5530]

Fluid Power Basics | Hydraulics & Pneumatics
This site has a good amount of usefull info for the hydraulicly clueless such as myself.