Benjamin Question for you all
- By AlanMcD
- PCP Airguns
- 8 Replies
It could be that if you are filling fairly quickly from a tank, and are filling a lot - say from 1500 psi to 3000 psi - this would probably be a normal result from heating the air in the tube. The pressure drops as it cools. Feel your tube by hand after a fill - if it is slightly warm 10-20 seconds after you fill then that is what is happening.I have noticed that on my Benjamin marauder that when I am filling it, and the gage on the marauder increases to 3000 psi, and I shut off the air source, the gage on the marauder will drop about 200 psi. It seems to do this every time.
You could fill slower and the impact will be reduced, or just do what you are doing and then top it up the last bit before unhooking. But keeping things cooler is probably for the better in the long run. If your tank valve can't be feathered to go slowly, then I'd break it down into 500 psi portions of fill with a pause between each one by closing the valve for 5-10 seconds.
Upvote 0