Anything here you can use?
http://www.valveexpo.com/upload/2016...1341427294.pdf
RVD starts on page 11.11

anything specific you are after?

GEA is notoriously stingy with functional descriptions.
I once spent three days playing e-mail ping pong with them and they all just send the same datasheet even after I attached it and requested that they send something more detailed.

Here is some of the stuff I have scraped together on Grasso units if you need it.
https://drive.google.com/drive/folde...HV?usp=sharing