06-26-2015, 01:38 PM
(06-26-2015, 11:23 AM)EdK Wrote: Mike,
Sorry for all of the questions but I'm not very knowledgeable when it comes to pneumatics. Can you describe those two valves that you called "needle valves" in your video? What are they used for?
Thanks,
Ed
Ed, they are check valve/needle valves. They are designed to block air flow in one direction and adjust air flow volume in the other. These are required so that air does not try to flow to both sides of the butterfly gun when air is flowing to the air cylinder for lowering onto the drawbar.
The ones needed are the ones that meter on the exhaust of the valve.
Here is a link to McMaster Carr's product page with the part number 4076K22.
http://www.mcmaster.com/#catalog/121/1029/=xslyu0
Mike.