Filling larger tanks with a GX CS3 PCP if you increase the duty cycle?

[Babaganoush]

 

I just picked up two used steel scuba tanks from a cool local dive guy.

After explaining what I needed he said he had some oddball tanks that he would probably never

use again to dive and that the where in good shape. So for $400 I got a 100cf and a 133cf +10% rated for 3850psi fills.



They say with a duty cycle of 30/20 on/off the GX3 can fill up to 1.5L.

Do think with and extended duty cycle, something like 20/60 I could fill these tanks?

 

[Brent]

Just keep in mind you will get 20 maybe 30rs if your lucky of run time on a non oil and water cooled compressor before you have to rebuild it. Heat is your enemy on these things so give it ample time to cool between cycles and you can fill anything you want. You will only get x amount of hours of run time before it needs rebuild service. Run time is run time, but if you give it time to cool between cycles you won't kill it. I am thinking of getting a Yong hang in hopes that the oil and water cooling will give me more run time hours before rebuild by keeping the short run cycles cooler. Heat speeds up wear damage on your o rings, and a rebuild kit on a Yong hang is in the ballpark of 35 to 45 dollars. I may be wrong but I'm thinking at 250 to 300 for the compressor and 50 max on a rebuild I hope to get 60 or 70 hrs of run time on my unit vs maybe 30 on a unit like yours for a higher up front cost. My son got a unit similar to yours umarex ready air, so I've been studying how they work and when to expect a rebuild. I've also been looking at the top shelf compressors for myself but I think I'm going to get more bang for my buck out of a yh compressor. That's just my 2 cents worth but I hope it helps with looking at the big picture. I'm new to pcp but I come from a thirty five plus years of industrial maintenance. 

 

[nobody1]

I will buy a compressor soon.

Yong Heng was at the top of my list based on price and reviews.

I only want to fill the air guns directly, which should be about 1 minute or less per air gun (200 cc air tank or less).

If you get 50 hours of run time befor e a rebuild and assuming it takes 1 minute (on average) per airgun, that means that you have 50 (hours runtime) x 60 (minutes in an hour) = 3000 fills, which should last a long time.

 

[Humdinger]

I just picked up two used steel scuba tanks from a cool local dive guy.

After explaining what I needed he said he had some oddball tanks that he would probably never

use again to dive and that the where in good shape. So for $400 I got a 100cf and a 133cf +10% rated for 3850psi fills.



They say with a duty cycle of 30/20 on/off the GX3 can fill up to 1.5L.

Do think with and extended duty cycle, something like 20/60 I could fill these tanks?

Can I put a trailer hitch on my VW Beetle to pull my boat trailer if I stop every 10 minutes? Yes. But your VW will die soon. Bottom line is that you use the right tool for a job. That compressor is made to fill air rifles and very small tanks, not scuba tanks over extended sessions. These types of compressors are fragile and die quickly anyway. Filling big tanks will just accelerate their demise.