What’s the tread size for a dive tank? I have an air storage project that requires a tank with 1/4”-1/2” valve outlet. I’m going to try a dive tank with a 1/4”npt 200psi regulator adapter…but I’m afraid the outlet orifice on the yoke is too small and won’t have the required air flow volume.
Hello Bigislandguy, there are two different sizes. The 7/8's, which is no longer being produced but several tanks are still around is the old school neck measurements. All standard cylinders now use 3/4's for the cylinder necks.
If a valve stem does get bent or damaged, can it be replaced or does it ruin the entire valve? I imagine that may depend on the severity of the damage to the valve stem itself. Is it standard practice for VIP technicians to actually remove the valve correctly, the way you demonstrate?
Great question. When we inspect cylinders, and we find a valve stem that has been bent, we simply replace it with a new one. The valve is rarely damaged, just the valve stem. I can't really speak for all technicians, just us, and we remove the valves the way we were trained to do it.
Do you approve of a common man like myself removing and replacing the valve. I recently bought a new tank and valve. Is there any issues with me assembling the valve to the tank?
We are all just common men. And I personally don't see anything wrong with a diver removing and replacing, and I will throw in servicing a tank valve, with the proper training of course. You don't have to be a service technician to work on your own gear. You just need to have a general idea of how it works. A lot of agencies will teach a course, such as SSI's Equipment techniques, that will go over basic service of an individual's scuba gear.
That is a dip tube, designed to keep any moisture that happened to get into the cylinder, out of the the first stage when a diver goes inverted. As far as lubricant, make sure to use some Cristo-lube around the tank neck when installing the valve.
What about this kind of pipe? Ever tried it? Is it a good ideia or does it put some kind of stress on the threads? ruclips.net/video/k5LgJ-vuDeA/видео.html
In my opinion, this can cause undo stress to the threads on the inside of the orifice. Me personally, I will stick to an adjustable wrench and a rubber mallet. If this was to ever cause damage to the threads, a diver would not be able to attach his regulator, thus he would need to buy another valve.
Purpose of language is to communicate clearly. That’s proper & common usage in NC. You must be from here in CA. But I also speak Texan, so can translate easily. I’m fixen to hop off my soapbox & shut up.
Some people say there is English, that most Americans speak, and then there is North Carolina English. Not sure if our version is right or wrong though.
Wow Linda. You've produced exactly zero YT videos, and contributed even less with that comment. Bryan has made probably hundreds of FREE educational videos that a lot of people have found helpful (almost 3.7 million views of his vids). All that time and energy spent and here you are Linda, to show up and make a grammar correction with nothing else to offer? You must be miserable.
![The Secrecy Of The Fill Station {[Random Thoughts]}](http://i.ytimg.com/vi/J141qzLCGOg/mqdefault.jpg)
Really helpful & practical.
Good to hear.
What’s the tread size for a dive tank? I have an air storage project that requires a tank with 1/4”-1/2” valve outlet. I’m going to try a dive tank with a 1/4”npt 200psi regulator adapter…but I’m afraid the outlet orifice on the yoke is too small and won’t have the required air flow volume.
Hello Bigislandguy, there are two different sizes. The 7/8's, which is no longer being produced but several tanks are still around is the old school neck measurements. All standard cylinders now use 3/4's for the cylinder necks.
Damn good points made! Good video
Thank You
If a valve stem does get bent or damaged, can it be replaced or does it ruin the entire valve? I imagine that may depend on the severity of the damage to the valve stem itself. Is it standard practice for VIP technicians to actually remove the valve correctly, the way you demonstrate?
Great question. When we inspect cylinders, and we find a valve stem that has been bent, we simply replace it with a new one. The valve is rarely damaged, just the valve stem. I can't really speak for all technicians, just us, and we remove the valves the way we were trained to do it.
Do you approve of a common man like myself removing and replacing the valve. I recently bought a new tank and valve. Is there any issues with me assembling the valve to the tank?
We are all just common men. And I personally don't see anything wrong with a diver removing and replacing, and I will throw in servicing a tank valve, with the proper training of course. You don't have to be a service technician to work on your own gear. You just need to have a general idea of how it works. A lot of agencies will teach a course, such as SSI's Equipment techniques, that will go over basic service of an individual's scuba gear.
LakeHickoryScuba what is the small rod in the valve for? Do I just hand tighten it with no lubricant or anything else
That is a dip tube, designed to keep any moisture that happened to get into the cylinder, out of the the first stage when a diver goes inverted. As far as lubricant, make sure to use some Cristo-lube around the tank neck when installing the valve.
LakeHickoryScuba awesome. Thank you very much.
You're welcome
Nice shirt
Thanks Josh S, just about any dive shop that sells Amphibious Outfitters Apparel can get you this shirt.
Metal against metal, I'm sure I would have put something between the two ..... or maybe put the wrench on the lower part of the pillar valve.......
Using the proper wrench, there should be no damage at all.
I wish I knew this today :(
Never carry your tank by the valve and none of these problems (damage) will occur!
Possibly.
What about this kind of pipe? Ever tried it? Is it a good ideia or does it put some kind of stress on the threads?
ruclips.net/video/k5LgJ-vuDeA/видео.html
In my opinion, this can cause undo stress to the threads on the inside of the orifice. Me personally, I will stick to an adjustable wrench and a rubber mallet. If this was to ever cause damage to the threads, a diver would not be able to attach his regulator, thus he would need to buy another valve.
“I’ve taken” not “I’ve took” .
Thank You for the correction
Purpose of language is to communicate clearly. That’s proper & common usage in NC. You must be from here in CA. But I also speak Texan, so can translate easily. I’m fixen to hop off my soapbox & shut up.
Some people say there is English, that most Americans speak, and then there is North Carolina English. Not sure if our version is right or wrong though.
Wow Linda. You've produced exactly zero YT videos, and contributed even less with that comment. Bryan has made probably hundreds of FREE educational videos that a lot of people have found helpful (almost 3.7 million views of his vids). All that time and energy spent and here you are Linda, to show up and make a grammar correction with nothing else to offer? You must be miserable.