Hi jet experts

I have a pro hv double action valve for the retracts.
it is the proportional valve or no???
when i push the switch for open or close the wheels ..retracts open or close it very fast (explodes.)
How can i setup the valve to have a smoth slow efect..

Greatings

You could put some air restricters in the lines, downstream of the valve.

I did this i put robart air restricters in the lines....then the valve on the 3 air outlet leaking air