Grasso screw RVD valves

[RANGER1]

Hoping someone can help with information on RVD valve operation & description.
Cannot seem to find anything detailed.

Thanks

[Grizzly]

Hi Ranger
I have sent some info.
I hope it is of some use?
Grizzly

[cricri]

Hi Ranger,
what do you name RVD? gaz operated suction check valve?
if that's it, there are different type.

[RANGER1]

Hi Ranger,
what do you name RVD? gaz operated suction check valve?
if that's it, there are different type.

Cricri,
I’m referring to “cold start valve” on outlet of oil separator on screw compressor.
Thanks

[RANGER1]

Hi Ranger
I have sent some info.
I hope it is of some use?
Grizzly

Grizzly,
Have not seen anything as yet.
I do have a new email, check on profile.

Thanks

[Grizzly]

I will check out what has happened.
Grizzly

[Tycho]

Anything here you can use?
http://www.valveexpo.com/upload/201608/02/201608021341427294.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/folders/1lrgFwY9j7AQsLtywvx7lqgCzBcDu9BHV?usp=sharing

[cricri]

Hi Ranger
check your Email.
You should find all the answers to your query.

[RANGER1]

Hi Ranger
check your Email.
You should find all the answers to your query.

Cricri,
Thanks for explanation & information.

[RANGER1]

Tycho,
Thanks for your efforts.
Will have to check information out, never can have to much.

[RANGER1]

Grizzly,
Thanks, received & appreciate your help.