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300 bar J size (50L) cylinder problems 300 bar J size (50L) cylinder problems
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Closed Circuit Rebreathers: Discuss 300 bar J size (50L) cylinder problems in the Rebreathers - General Information forums: Not got a bullnose valve on the bottle. Has an external thread. Supplier (Air Products ) said has to have a ...

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Old 07-06-07, 05:04 PM
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300 bar J size (50L) cylinder 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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Old 08-06-07, 12:48 PM
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Is this because it's 300bar and not the normal 200bar, I've only ever used the 200bar.
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Old 09-06-07, 09:09 PM
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BOC offered me this type of clyinder, which sounded great. However, the 300BAR valve is apparently a NEVOC standard. (something European Valve something something)

I have not found anyone who can sell me a connector, the various calls I had with BOC indicated that the only customer they had for these clyinders was the RAF.

NEVOC have the same outside thread, but 4 different internal cone shapes depending on the gas. SAP offered to make up an adaptor if I could get the drawings, but I've not found those either.

If anyone else can help I would be greatful.
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Old 09-06-07, 11:48 PM
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as per other thread - ignoring cross postings... PM nigel hewitt he has these cylinders.
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Old 10-06-07, 01:00 AM
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I have some what are you looking for?
I live in Stourport on Severn pm me if you are still looking for some
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