Bottle threads question

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would this work for you?

20230811_121942.jpg
 
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SilentSquirrel said:
I have a new (to me) 45 Minute Bottle
It has female threads in the neck
What are the thread specifications for connection of a fill valve,please?
Is it DIN or M18x1.5,or?

Thanks
Edward
Click to expand...

So far every SCBA tank I have seen has the same threads between the valve and the tank, and of course the same threads on the outlet side of the valve since they are (almost?) all CGA347.

If your tank already has an SCBA valve on it, then all you need is a CGA347 fill station.

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Geezerhood said:
So far every SCBA tank I have seen has the same threads between the valve and the tank, and of course the same threads on the outlet side of the valve since they are (almost?) all CGA347.

If your tank already has an SCBA valve on it, then all you need is a CGA347 fill station.

View attachment 379833
Click to expand...
There is nothing installed in the neck of the bottle.
Simply bare female threads
The id of the threads is 19.6mm/0.771" thread to thread
 
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SilentSquirrel said:
There is nothing installed in the neck of the bottle.
Simply bare female threads
The id of the threads is 19.6mm/0.771" thread to thread
Click to expand...
I have always used the SCBA valve assemblies, but I am 99 44/100's percent sure that the threads are 7/8-14UNF also designated as .875-14UNF.

Here is one thread on this "thread" topic on AGN

You can get an SCBA valve like the one starlingassasin posted for free sometimes at a fire station off an expired tank or buy a used one off ebay for $25+, then get the fill station like what I posted above, or go with one that goes directly into your bare tank like this one:

1691804109817.png
 
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Geezerhood said:
I have always used the SCBA valve assemblies, but I am 99 44/100's percent sure that the threads are 7/8-14UNF also designated as .875-14UNF.

Here is one thread on this "thread" topic on AGN

You can get an SCBA valve like the one starlingassasin posted for free sometimes at a fire station off an expired tank or buy a used one off ebay for $25+, then get the fill station like what I posted above, or go with one that goes directly into your bare tank like this one:

View attachment 379883
Click to expand...
Thanks for the link @Geezerhood
That answered the question and had other good info as well
Edward
 
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As @Scotty1 and @Geezerhood both said, your U.S. SCBA tank is 7/8-14 thread sometimes referred to as .875-14. You can find that valve on Ebay, or Aliexpress for significantly less than Amazon charges for it. Just be sure you get the right thread pitch. Don't get one with M18*1.5 metric thread or you'll be sending it back.
 
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