Posted: 8/31/2015 10:10:57 AM EDT
Every set of fittings or connections I buy leak air. ALL OF THEM!!!
What brand or where do you buy your chucks?? Done with big box store sets. Metal or brass. |
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We use the Milton "M" style couplers at work. They hold up well to all most of the abuse the idiots technicians do to them. Buy these and be done with it. Cheap enough compared to some of the other options out there. Good enough to live in repair shops. Be sure and get the male end same brand also. |
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They are "ok" |
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How bad of a leak? A very slight hiss is normal IMO. I wouldn't expect an absolutely air-tight seal. We have a few at work that are used with a nitrogen bottle to service tires (about 300 psi) that do not hiss at all. An air tight seal is possible with quality QDs. I've even seen an idiot crank the bottle regulator up to 2000 psi and the steel QD fittings held up. They are most likely from Grainger; no idea what brand. |
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Quoted: Real men use chicago fittings.  http://67.208.120.72/wp-content/uploads/2012/11/Chicago-Couplings.png |
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Be sure to use whip stops. Crow feet don't have valving and they like to come apart on their own. Quoted:
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Real men use chicago fittings.
http://67.208.120.72/wp-content/uploads/2012/11/Chicago-Couplings.png Yup. The results can be less than pleasant. |
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Quoted: Be sure to use whip stops. Crow feet don't have valving and they like to come apart on their own. Quoted: Quoted: Real men use chicago fittings. http://67.208.120.72/wp-content/uploads/2012/11/Chicago-Couplings.png When they come apart it is because they have been installed incorrectly with out the cotter pins and such .... |
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Quoted: Yup. The results can be less than pleasant. Quoted: Quoted: Quoted: Real men use chicago fittings. http://67.208.120.72/wp-content/uploads/2012/11/Chicago-Couplings.png Yup. The results can be less than pleasant. Until your rattle gun has stopped working and before you realize it a chicago fitting has whacked you in the nuts YOU HAVEN'T LIVED! It will also make you never forget the pin ...  |
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This is what the OP seeks.
http://www.mscdirect.com/product/details/01432566?src=pla&cid=PLA-Google-PLA+-+Test&CS_003=7867724&CS_010=01432566 I work as the alignment tech/mechanic at a tire shop and this is the best fitting I have used in 25+ years. The last one lasted 4 years before it started to leak,the air nipples on the tools wore out fairly often though causing leaks 
ETA I use the type T fitting though. |
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Milton "V" series, S-764 couplers. Have converted ALL my shop equipment, portable tanks, hoses and tools. Only had 2 lose an O-ring so far, repaired one, keep a couple spares on hand. http://ecx.images-amazon.com/images/I/31tG1D7c5hL._SX425_.jpg Same here. I got all mine from Northern Tools. I need some more though. |
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Same here. I got all mine from Northern Tools. I need some more though. Quoted:
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Milton "V" series, S-764 couplers. Have converted ALL my shop equipment, portable tanks, hoses and tools. Only had 2 lose an O-ring so far, repaired one, keep a couple spares on hand. http://ecx.images-amazon.com/images/I/31tG1D7c5hL._SX425_.jpg Same here. I got all mine from Northern Tools. I need some more though. Another +1. No leaks like the Sears/HF fittings I use to have. |