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Others BEST Fittings One Way Valve for filling SCBA tanks

PasadenaMike,

I'm confused. Which end of the fill line is the connected to, and why?? Do you need and additional bleed valve anywhere in the string??
Thanks,
Noob
You have arrows that show direction of flow. This is only meant to fill scba tanks that don’t have a one way fill valve. It’s important that there’s a bleed valve on the tank and compressor. Never use this on a gun. Ask me how I know 🤪
 
PasadenaMike,

I'm confused. Which end of the fill line is the connected to, and why?? Do you need and additional bleed valve anywhere in the string??
Thanks,
Noob

It is connected to the fill line of the compressor and then the bottle line is connected 👍🙂

You will need to bleed air on both sides of the one way valve, so you bleed your compressor and also the bottle 👍🙂
 
Save for our illustrious leader's (Steve) knowledge of same, the use of so-called Foster fittings is much scarier than most airgunners realize. The main problem with them is the fact there is no industry standard. In fact, some are so sloppily made, undersized males can blow out of oversized female fittings with predicable results!

Steve Archer, Steve Dampier (Airgun Guild) and yours truly, have campaigned this issue for several years. Unfortunately, manufacturers of airguns and the suppliers of the fittings seemingly don't care. Making matters worse, the materials used, along with the design of the latching ramps and the number of latching balls, makes apparently snug fitting ones (male-to-female) a bit dangerous.

Again, the issue is complex and not centered on one individual factor. Perhaps that is one of the reasons nothing has been done with respect to a standard design.

Making matters worse, there is no airgun standards committee. What's needed is a SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) for the airgun sport. That too is lacking. I've gone on record with this thought: Sooner or later, the Fed will get involved, and we all will lose to some idiotic standard.

For more information, Steve (Archer) has several articles here on H.A.M. covering the details. Perhaps if enough airgunners complain to the powers-that-be, something will eventually be done.

Alan Applegate
 
Save for our illustrious leader's (Steve) knowledge of same, the use of so-called Foster fittings is much scarier than most airgunners realize. The main problem with them is the fact there is no industry standard. In fact, some are so sloppily made, undersized males can blow out of oversized female fittings with predicable results!

Steve Archer, Steve Dampier (Airgun Guild) and yours truly, have campaigned this issue for several years. Unfortunately, manufacturers of airguns and the suppliers of the fittings seemingly don't care. Making matters worse, the materials used, along with the design of the latching ramps and the number of latching balls, makes apparently snug fitting ones (male-to-female) a bit dangerous.

Again, the issue is complex and not centered on one individual factor. Perhaps that is one of the reasons nothing has been done with respect to a standard design.

Making matters worse, there is no airgun standards committee. What's needed is a SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) for the airgun sport. That too is lacking. I've gone on record with this thought: Sooner or later, the Fed will get involved, and we all will lose to some idiotic standard.

For more information, Steve (Archer) has several articles here on H.A.M. covering the details. Perhaps if enough airgunners complain to the powers-that-be, something will eventually be done.

Alan Applegate
Buy Best Fittings from the UK.
 
It doesn't matter. Most of the fittings are made in two places, Japan and China. They're also made in the USA, GB, Germany and Sweden. The long barreled ones (needed for FX airguns) only have 5 mating locking balls, rather than 6 which most have. One off-beat brand has only 4 mating balls, and when matched with an undersized male counterpart, they unglued at about 150 BAR.

While I'm at it, there are examples of probes which don't properly mate. If the dead end of the probe isn't seated due to an improper length, the probes fly out with a lot of force.

All of this sort of reminds me of the foregone aluminum air reservoirs. We just don't hear about the bad things about them unless someone gets maimed.
 
This reminded me that I always did want one of these, but never saw one one at any of the U.S. websites and never got one. This strikes me as kind of funny because I have bought so many magazines from CARM in Croatia. Time to buy, thanks for the reminder Mike!
 
Found a similar check valve on ole Amazone:

https://www.amazon.com/dp/B0CPS9YXWL?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

$16.99 USD delivered second day.

1728861815233.webp


Now some might be put-off by the 600 psi working pressure. No problem. PayPal is ready when you are. $21.88 plus $18.27 freight from over the pond at BF for the 300 bar.

BEST Fittings One Way Valve Quick Coupler Compressor Connector Male-Female – Best Fittings

You do get two QD's with it for $40.15.

If you are feeling extra adventurous (or frugal) there's this one:

https://www.amazon.com/dp/B0C8NZ18S6?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Two valves for $6.69

1728862871707.webp
 
Found a similar check valve on ole Amazone:

https://www.amazon.com/dp/B0CPS9YXWL?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

$16.99 USD delivered second day.

View attachment 9007


Now some might be put-off by the 600 psi working pressure. No problem. PayPal is ready when you are. $21.88 plus $18.27 freight from over the pond at BF for the 300 bar.

BEST Fittings One Way Valve Quick Coupler Compressor Connector Male-Female – Best Fittings

You do get two QD's with it for $40.15.

If you are feeling extra adventurous (or frugal) there's this one:

https://www.amazon.com/dp/B0C8NZ18S6?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Two valves for $6.69

View attachment 9008
Just get the Best Fittings and don’t mess with garbage that can take out your eye or 🥜
 
Last edited:
Found a similar check valve on ole Amazone:

Amazon.com

$16.99 USD delivered second day.

View attachment 9007


Now some might be put-off by the 600 psi working pressure. No problem. PayPal is ready when you are. $21.88 plus $18.27 freight from over the pond at BF for the 300 bar.

BEST Fittings One Way Valve Quick Coupler Compressor Connector Male-Female – Best Fittings

You do get two QD's with it for $40.15.

If you are feeling extra adventurous (or frugal) there's this one:

https://www.amazon.com/dp/B0C8NZ18S6?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Two valves for $6.69

View attachment 9008
600 psi rating for one
150 psi rating for the other
Tell me please!
What do they weigh?
I want to calculate ft/lbs for when they blow at 2000psi and careen out of control at 900 fps
Edward
 
Found a similar check valve on ole Amazone:

https://www.amazon.com/dp/B0CPS9YXWL?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

$16.99 USD delivered second day.

View attachment 9007


Now some might be put-off by the 600 psi working pressure. No problem. PayPal is ready when you are. $21.88 plus $18.27 freight from over the pond at BF for the 300 bar.

BEST Fittings One Way Valve Quick Coupler Compressor Connector Male-Female – Best Fittings

You do get two QD's with it for $40.15.

If you are feeling extra adventurous (or frugal) there's this one:

https://www.amazon.com/dp/B0C8NZ18S6?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Two valves for $6.69

View attachment 9008
600 psi won't hold a candle to the Best Fittings 4500 psi check valve! Don't get yourself hurt or killed using the Amazon product.
 
Hey fellas here’s a product I’ve been using for a long time to fill tanks with my compressor to not have to “pressure match” the tank and compressor (it’s not for guns because it’ll lock itself on, ask me how I know lol). Anyway depending on your setup you can use one with a qd or one with two made adapters. I always wonder why US dealers don’t carry these and no one ever talks about these but it makes a lot of sense to use one. I just connect everything and get ready to fill the tank but instead of pressure matching I just open the tank valve which fills the adapter and is now ready to accept the compressor air. Once the compressor pressure over powers the tank pressure it’ll open the check valve and fill your tank. Once you fill the tank just disconnect everything as normal just make sure to bleed the tank side and compressor side. I had made one a few years ago until I learned about Best Fittings over seas so I ordered both of the ones pictured below. The Best Fittings fellas are very friendly and helpful. I understand you can make these from cheap Chinese parts but do I want to trust 4500 psi to unproven brands ? Even when I made my own I got parts from the guys at Air Tanks Plus. I’m not sponsored by anyone just FYI I’m just a regular dude who loves Airguns and helping fellow air gun nuts and if there’s something that’s been good for years I share it.
Thank you sir. appreciate your input very much. Good information 👍
 

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