How to safely fill a tank from a home compressor

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FlexWagtail

FlexWagtail

Member
Aug 11, 2016
130
17
MD, United States
I couldn't get a message to the vendor, so let me try the voices of experience here.

I just pulled the trigger on a Yong Heng, and now need to get a bottle system to mate with it, since I don't always want to direct fill guns from the machine. My question is, how to fill a backpack bottle such as this AirHog 14cu kit safely? 

The Yong Heng has a microbore hose out with female foster. Bottle sets are microbore out female foster as well. Does this mean I can safely fill using a male/male quick connect fitting to mate the two in the middle - OR - is there a lot I need to learn?

For instance: 1) Connect microbore hoses; 2) Start compressor; 3) carefully open valve on tank; 4) monitor tank guage and shut off compressor at desired pressure (4500psi); 5) close tank valve. 6) bleed off air: 7) enjoy filling guns? 

Thanks for the advice

 
You seem to have the gist of it. I like to bring the pressure in the hose up until it trips the cutoff and then check for leaks before I open the tank valve. Instead of the male to male fitting, I use an inline manometer with a non-return check valve on the tank side just in case I have a blowout when I'm not nearby. It takes 13-14 hours to refill my 6.8-litre bottle from empty with my Altaros booster and I have learned by experience not to trust Orings.
 
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I have a double end male quick connect fitting I connect compressor to 106 cu ft air tank both compressor and tank hose have female foster fittings.I fill my tank when pressure gets down around 225 bar.After i cone ct compressor to tank i close bleeder from tank hose and open tank,...compressor bleed down on high and or low pressure is open but the pressure of the tank does not exit the compressor. I turn on compressor and close bleeders on compressor.. about 20mins to top off fill to 4500psi then open top or bottom bleeder on compressor and shut off compressor close bottle valve bleed line between them wa la! I use a bag of ice and enough water to barely cover ice with pump in a 5gal bucket to keep compressor cool works great and aslo use a royobi tile saw water pump 14bux at home depot as the pump that came with it suked.
GL sonny
 
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I couldn't get a message to the vendor, so let me try the voices of experience here.

I just pulled the trigger on a Yong Heng, and now need to get a bottle system to mate with it, since I don't always want to direct fill guns from the machine. My question is, how to fill a backpack bottle such as this AirHog 14cu kit safely? 

The Yong Heng has a microbore hose out with female foster. Bottle sets are microbore out female foster as well. Does this mean I can safely fill using a male/male quick connect fitting to mate the two in the middle - OR - is there a lot I need to learn?

For instance: 1) Connect microbore hoses; 2) Start compressor; 3) carefully open valve on tank; 4) monitor tank guage and shut off compressor at desired pressure (4500psi); 5) close tank valve. 6) bleed off air: 7) enjoy filling guns? 

Thanks for the advice

 
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"Eaglebeak"You seem to have the gist of it. I like to bring the pressure in the hose up until it trips the cutoff and then check for leaks before I open the tank valve. Instead of the male to male fitting, I use an inline manometer with a non-return check valve on the tank side just in case I have a blowout when I'm not nearby. It takes 13-14 hours to refill my 6.8-litre bottle from empty with my Altaros booster and I have learned by experience not to trust Orings.
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Do you have part #'s or pics you could post. I'm guessing you built this using hydraulic parts?

Thanks
 
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You should add to the output on the pump a filter like the Alpha from airtanksforsale otherwise the moisture you but in your tank or rifle will cause pserious problems down the road. 
I don’t if this applies to you compressor as I have the Carette but I always let my compressor run for a minute with no load at the startup and after tanks full I let it run for a few minutes with the optput open to blow moisture out to minimize corrosion in compressor. If you can’t or won’t go for a filter I would have tank inspected on a regular basis. They sell flexible scopes were you can do it yourself but you have to know what to look for.

https://www.amazon.com/gp/product/B0778XT2VN/ref=s9_acsd_topr_hd_bw_bRAymh_c_x_w?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-3&pf_rd_r=GV9H2RP6R41BQ0DTP5W6&pf_rd_t=101&pf_rd_p=c1ea0a09-0550-5fa3-b76c-f75fbaa6acac&pf_rd_i=401578011

if you get good at using this you can become a proctologist.
 
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Hi BigTinBoat
I used a 1/8npt high-pressure female T. A manometer that I scavenged from the SCBA backpack that my bottle came with. The stop valve is a simple 1/8 npt male to male foster with a non-return valve screwed into a 1/8 npt female to male foster. This can be used in either direction as a male to male adaptor. Be careful to only use this if there is a bleed valve on the uphill side or you won't be able to disconnect the hose. The T piece came from a hydraulic hose shop for a couple of bucks and the foster fittings from eBay. On the T I have a male foster one end and female the other. With this combination, I can connect male to male, male to female and female to female in any direction. I think the whole lot cost me about $18.00 AUD.
 
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"FlexWagtail"On the moisture issue: Would simply holding the filled tank valve-down for a few minutes, then bleeding a little air, clear any condensation that might trickle down to the neck and valve in bottle? Or is that just plain stupid?
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That would get rid of some of the moisture but not enough. Unfortunately there is no way around it. You need a sieve filter. 
 
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"FlexWagtail"On the moisture issue: Would simply holding the filled tank valve-down for a few minutes, then bleeding a little air, clear any condensation that might trickle down to the neck and valve in bottle? Or is that just plain stupid?
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That is not stupid. I don't know about if your valve has a snorkle or not. If it dosn't, doing that should purge most of the moisture. SCBA tanks, because they are mounted valve side down, have a tube 2-3 inches long to stop any moisture being inhaled by the user. I think scuba valves use them as well. I will be removing mine when the time comes that I need to take a look inside.
 
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"Brian10956"You should add to the output on the pump a filter like the Alpha from airtanksforsale otherwise the moisture you but in your tank or rifle will cause pserious problems down the road. 
I don’t if this applies to you compressor as I have the Carette but I always let my compressor run for a minute with no load at the startup and after tanks full I let it run for a few minutes with the optput open to blow moisture out to minimize corrosion in compressor. If you can’t or won’t go for a filter I would have tank inspected on a regular basis. They sell flexible scopes were you can do it yourself but you have to know what to look for.
https://www.amazon.com/gp/product/B0778XT2VN/ref=s9_acsd_topr_hd_bw_bRAymh_c_x_w?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-3&pf_rd_r=GV9H2RP6R41BQ0DTP5W6&pf_rd_t=101&pf_rd_p=c1ea0a09-0550-5fa3-b76c-f75fbaa6acac&pf_rd_i=401578011
if you get good at using this you can become a proctologist.

i just spit out my coffee !!!!!
Click to expand...
 
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