Hmm new proof test for precharged guns?

[RichardH]

A contact in the trade mentioned the reservoirs for PCP airguns are soon to need proofing at the Birmingham or London proof houses and then regular retesting after a set period?

Anyone have any more information on this?

[Sportsmatch]

How are they going police this and how are the rifles or pistol getting to the proof house as posting of pressure vessels is near impossible
Luckily all mine have detachable cylinders

[RichardH]

How are they going police this and how are the rifles or pistol getting to the proof house as posting of pressure vessels is near impossible
Luckily all mine have detachable cylinders

One would assume that just like powder guns it would be an offence (and a serious one) to sell a gun out of proof, you'd probably need an RFD to ship it....

[Trumpetier]

Personally, I've never heard of a pcp cylinder exploding, anyone ??

[Bjacobs571]

PCP cylinders can explode and have done when extremely mistreated, but the proof houses are not set up to pressure test them or retest them. The places who retest diving cylinders are the ones who could undertake this testing. I don't know how they could enforce it as with diving cylinders they won't refill them unless they have been tested but not many people take a PCP cylinder into a shop or club to refill.

[ZAKDINGEL]

Like already said how could they do this as when they test a dive bottle they look at it outside and inside its then filled in a cage after the inspection is done and is ok ---so I cants see how they can start to take a pcp apart to get a look inside? this will cause some pcps to leak if not put back together correctly ----Could the op not be getting confused with the pcps that used a buddy bottle? I have herd that some shops would not fill "ie a rapid 7" because the date on the bottle was out---- most owners have there own tank to refill so these bottles never get retested and the proof house is always back logged with powder burner barrel tests and mods

[piggy589]

Personally, I've never heard of a pcp cylinder exploding, anyone ??

Only one, apparently it made a right mess of the owner's garage,including a fill valve lodged in a wall.

One of his hands was left looking like a giant cotton bud when the good folks in accident and emergency had finished with him.

[Hsing-ee]

Only one, apparently it made a right mess of the owner's garage,including a fill valve lodged in a wall.

One of his hands was left looking like a giant cotton bud when the good folks in accident and emergency had finished with him.

How did he manage to burst it? Did he fill it with another gas?

[secretagentmole]

Personally, I've never heard of a pcp cylinder exploding, anyone ??

Google GinB stocks.....

[Aimstraight]

Google GinB stocks.....

Wasn't that a specific case where the threads on the cylinder/valve assembly were not quite right?

[JerryD]

Personally, I've never heard of a pcp cylinder exploding, anyone ??

Several eyars ago (90s??) a GC2 production cylinder ruptured during filling.This was not the end plug blowing out, or an aftermarket jobbie, but a mainstream, factory supplied cylinder. I believe the failure was eventually traced to some inclusion from the original alloy melt which caused a weakened grain structure.

Since then, any GC2 going for servicing won't be touched until the cycilnder has been inspected.

So yes, it can happen - and has.




.

[Aimstraight]

Several eyars ago (90s??) a GC2 production cylinder ruptured during filling.This was not the end plug blowing out, or an aftermarket jobbie, but a mainstream, factory supplied cylinder. I believe the failure was eventually traced to some inclusion from the original alloy melt which caused a weakened grain structure.

Since then, any GC2 going for servicing won't be touched until the cycilnder has been inspected.

So yes, it can happen - and has.

Suppose manufacturing defect is possible - was this an aluminium alloy cylinder? I read on here about an issue with the alloy cylinder on an older FWB C02 pistol (Model C25) in regard to fatigue. It seems the strength of some alloy cylinders might not be as good as steel (all dependent on many variables/design stresses/gas in use).

[Steyr]

Personally, I've never heard of a pcp cylinder exploding, anyone ??

You are wrong. The owner of GinB was involved in such an incident. Using alternative gases like pure oxygen can encourwge rapid disassembly too......scuba tanks also fail....remember seeing one that had failed in a Volvo estate. It looked lime a bald puffa fish.

[Aimstraight]

You are wrong. The owner of GinB was involved in such an incident. Using alternative gases like pure oxygen can encourwge rapid disassembly too......scuba tanks also fail....remember seeing one that had failed in a Volvo estate. It looked lime a bald puffa fish.

Post #27 of THIS thread suggests it was not a bog standard cylinder.

[Aimstraight]

A contact in the trade mentioned the reservoirs for PCP airguns are soon to need proofing at the Birmingham or London proof houses and then regular retesting after a set period?

Anyone have any more information on this?

I'd be surprised at that. It would need legislation/regulation and a lot of resource (that does not exist).

For example, dive cylinders are subject to mandatory testing, carried out by IDEST approved centres (Inspectorate for Diving Equipment Servicing & Testing). To apply a similar scheme to PCP cylinders would require investment for test equipment and compatible fill adapters (and possibly their service manuals) for every PCP under the sun.