J size (50L) 300 bar Helium problems

Shaunzxr · 7th June 2007, 16:01

Not got a bullnose valve on the bottle.
Has an external thread. Supplier (Air Products ) said has to have a regulator fitted to the cylinder and connect to this. But they can't be sure it will take a bullnose connection.

Anyone else have this problem?

UKSteve · 7th June 2007, 16:29

Sounds like the fitting for Norweigan gas supply bottles...though not sure its a 300 bar fitting.

May be worth calling Sub-Aqua Products as they supply a lot of different adaptors for gas bottles and have proved to be very helpful.

Steve

aquaholic · 7th June 2007, 17:50

Have you tried if a female DIN adapter fits - e.g. a Reg cap? Should give you an idea of type of thread.

I have seen such external threads on CO2 tanks in the UK. You can get adapters for those to Bullnose from welding supply shops in brass.

Good Luck

A

Shaunzxr · 7th June 2007, 18:08

Quote: (Originally Posted by aquaholic)

Have you tried if a female DIN adapter fits - e.g. a Reg cap? Should give you an idea of type of thread.

I have seen such external threads on CO2 tanks in the UK. You can get adapters for those to Bullnose from welding supply shops in brass.

Good Luck

A

The CO2 adaptor is to small

UKSteve · 7th June 2007, 19:52

These are the things I am on about... Look likely?

All about £20 and cross back to 1/4" BSP... The size of the internal seal part is about the same as a conventional bullnose seal for a UK cylinder.

Steve

Shaunzxr · 7th June 2007, 20:22

Quote: (Originally Posted by UKSteve)

These are the things I am on about... Look likely?

All about £20 and cross back to 1/4" BSP... The size of the internal seal part is about the same as a conventional bullnose seal for a UK cylinder.

Steve

Very Hard to tell, I think the one on the right looks promising.
Thanks for your help
Will mail SAP see what they say

Gibbon · 7th June 2007, 22:26

Quote: (Originally Posted by Shaunzxr)

Very Hard to tell, I think the one on the right looks promising.
Thanks for your help
Will mail SAP see what they say

Do you actually have the cylinder with you, a photo would clarify it, but http://http://www.bocmedical.co.uk/product_information/Cylinder_data_chart.pdf

would imply that there is simply some confusion regarding the gender of the fitting, perhaps SAP are differnt.

Shaunzxr · 8th June 2007, 06:44

300 Bar helium brown bottle O2 white bottle

7th June 2007, 16:01	#1 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 80	J size (50L) 300 bar Helium problems Not got a bullnose valve on the bottle. Has an external thread. Supplier (Air Products ) said has to have a regulator fitted to the cylinder and connect to this. But they can't be sure it will take a bullnose connection. Anyone else have this problem?
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7th June 2007, 16:29	#2 (permalink)
UKSteve Still a novice... Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Jul 2005 Location: Weymouth, UK Posts: 557	Re: J size (50L) 300 bar Helium problems Sounds like the fitting for Norweigan gas supply bottles...though not sure its a 300 bar fitting. May be worth calling Sub-Aqua Products as they supply a lot of different adaptors for gas bottles and have proved to be very helpful. Steve
(Offline)

7th June 2007, 17:50	#3 (permalink)
aquaholic hohum Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: UK Posts: 100	Re: J size (50L) 300 bar Helium problems Have you tried if a female DIN adapter fits - e.g. a Reg cap? Should give you an idea of type of thread. I have seen such external threads on CO2 tanks in the UK. You can get adapters for those to Bullnose from welding supply shops in brass. Good Luck A __________________ Trying things different to the norm is the route to a new norm....
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7th June 2007, 18:08	#4 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 80	Re: J size (50L) 300 bar Helium problems Quote: (Originally Posted by aquaholic) Have you tried if a female DIN adapter fits - e.g. a Reg cap? Should give you an idea of type of thread. I have seen such external threads on CO2 tanks in the UK. You can get adapters for those to Bullnose from welding supply shops in brass. Good Luck A The CO2 adaptor is to small
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7th June 2007, 19:52	#5 (permalink)
UKSteve Still a novice... Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Jul 2005 Location: Weymouth, UK Posts: 557	Re: J size (50L) 300 bar Helium problems These are the things I am on about... Look likely? All about £20 and cross back to 1/4" BSP... The size of the internal seal part is about the same as a conventional bullnose seal for a UK cylinder. Steve
(Offline)

7th June 2007, 20:22	#6 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 80	Re: J size (50L) 300 bar Helium problems Quote: (Originally Posted by UKSteve) These are the things I am on about... Look likely? All about £20 and cross back to 1/4" BSP... The size of the internal seal part is about the same as a conventional bullnose seal for a UK cylinder. Steve Very Hard to tell, I think the one on the right looks promising. Thanks for your help Will mail SAP see what they say
(Offline)

7th June 2007, 22:26	#7 (permalink)
Gibbon Southern Monkey Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2005 Location: East Devon Posts: 226	Re: J size (50L) 300 bar Helium problems Quote: (Originally Posted by Shaunzxr) Very Hard to tell, I think the one on the right looks promising. Thanks for your help Will mail SAP see what they say Do you actually have the cylinder with you, a photo would clarify it, but http://http://www.bocmedical.co.uk/product_information/Cylinder_data_chart.pdf would imply that there is simply some confusion regarding the gender of the fitting, perhaps SAP are differnt.
(Offline)

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