Cylinder Markings

[Jonwainwright]

Good morning people

Just after a little advice

I recently brought a 2nd hand cylinder which is out of test, risky i know but it looks in great condition and has been stored with air in and came with a few accessory's and was only £20 the boot, protective netting and o ring holder was probably worth the £20.

Anyway I'm about to get it tested and i need to decipher the markings as I've been asked for the make, serial number and size.

The markings I can see are as follows.

Beaver - M25 Din 477 - PS232PT3 - 42 BAR - CE 0090 - TU15 2003/11 - 12L - 15kg - 4, 5MM - D ecs LLB152 UT

*disclaimer thats what i think the markings say ie the 5 might be an s or something like that.

So im guessing it was manufactured by Beaver and its a 12L cylinder and the serial number is PS232PT3

ive googled Beaver cylinder markings but im drawing a blank could anyone confirm im right? or point me in the right direction?

[Spinal]

PS232 sounds like it's the working pressure...

I would suggest that the LLB152 may be the serial...

[Jonwainwright]

good shout i didnt even think 232 would be the working pressure

[Iain Smith]

Good morning people

Just after a little advice

I recently brought a 2nd hand cylinder which is out of test, risky i know but it looks in great condition and has been stored with air in and came with a few accessory's and was only £20 the boot, protective netting and o ring holder was probably worth the £20.

Anyway I'm about to get it tested and i need to decipher the markings as I've been asked for the make, serial number and size.

The markings I can see are as follows.

Beaver - M25 Din 477 - PS232PT3 - 42 BAR - CE 0090 - TU15 2003/11 - 12L - 15kg - 4, 5MM - D ecs LLB152 UT

*disclaimer thats what i think the markings say ie the 5 might be an s or something like that.

So im guessing it was manufactured by Beaver and its a 12L cylinder and the serial number is PS232PT3

ive googled Beaver cylinder markings but im drawing a blank could anyone confirm im right? or point me in the right direction?

Beaver - organisation for whom cylinder was made
M25 DIN 477 - M25x2 neck thread (with a DIN477 connection, rather than EN 144-1. This is significant for the o-ring/washer fitted when the valve is serviced)
PS232 - Pressure, Service: 232 bar (aka "Working Pressure")
PT3 - 42 BAR - Pressure, Test: 342 bar (aka "Test Pressure")
CE 0090 - CE marking
TU15
2003/11 - manufacturing date
12L - Water Capacity
15kg - weight (technically "mass")
4,5MM - wall thickness
ecs - the manufacturer - Eurocylinders
LLB152 - the serial number
UT - not sure about this! (but all of my Euros have it too, so I don't think it's part of the serial number)

So you have a Eurocylinders 12L, serial number: LLB152

TBH - the dive shop should have been able to read this straight off your cylinder and/or explain the markings to you.

Iain

[Jonwainwright]

Yeah im sure they would be able to be honest but i have a friend who gets his dive cylinders tested really cheap because his company has an account and get loads done in bulk. He basicly puts his diving cylinders in the batch along with the work ones and he has said he will add mine to them and send them with the bulk order but he needed the above information.

Nice one for the information though

[Ian_6301]

This knowledge used to be a pass/fail element of the BSAC Novice course.

Is it still in the OD course?

Do PADI teach it as part of OW?

[drysuitdiver]

This knowledge used to be a pass/fail element of the BSAC Novice course.

Is it still in the OD course?

Do PADI teach it as part of OW?

Yes still in the OD course. OT2 slide 12....

I got taught it in OW with PADI. But knew anyway from my engineering background .


Sent from my iPhone using Tapatalk

[Ian_6301]

Yes still in the OD course. OT2 slide 12....

I got taught it in OW with PADI. But knew anyway from my engineering background .


Sent from my iPhone using Tapatalk

Looking back, there was a lot of really useful stuff about being a diver in those early lectures, which a lot of people don't seem to know these days. Never quite sure if it was just because I have a brain that retains the minutiae but rejects big chunks of "irrelevance", or whether it just wasn't being taught any more.

[matt]

TU15 - is the sign for TÃœV Thuringia (Technical Inspection Association)
UT - is the sign for ultra sonic test

Matt.

Beaver - organisation for whom cylinder was made
M25 DIN 477 - M25x2 neck thread (with a DIN477 connection, rather than EN 144-1. This is significant for the o-ring/washer fitted when the valve is serviced)
PS232 - Pressure, Service: 232 bar (aka "Working Pressure")
PT3 - 42 BAR - Pressure, Test: 342 bar (aka "Test Pressure")
CE 0090 - CE marking
TU15
2003/11 - manufacturing date
12L - Water Capacity
15kg - weight (technically "mass")
4,5MM - wall thickness
ecs - the manufacturer - Eurocylinders
LLB152 - the serial number
UT - not sure about this! (but all of my Euros have it too, so I don't think it's part of the serial number)

So you have a Eurocylinders 12L, serial number: LLB152

TBH - the dive shop should have been able to read this straight off your cylinder and/or explain the markings to you.

Iain

[MadUKDiver]

The incompatibility of the DIN 477-6 flange, with both EN 144-1 O-ring grooves, causes ingress of water and corrosion at the top of the grooves which may lead to leakage later in the cylinder’s life.

Guidance note: Incompatibility of DIN 477-6 Flange with EN 144-1 O-ring grooves

[matt]

Interesting, thanks.

Imported to the UK in error sounds a bit odd. Destroying the valve (rather than returning to the owner) excessive.

Cheers
Matt.

Guidance note: Incompatibility of DIN 477-6 Flange with EN 144-1 O-ring grooves

[F.P.]

Interesting, thanks.

Imported to the UK in error sounds a bit odd. Destroying the valve (rather than returning to the owner) excessive.

Cheers
Matt.

'Destroying the valve' - well the cartel has to cope with guiding the least knowledgeable 'test' person. A decent engineer should be able to differentiate between damaging corrosion and a bit of surface crud.

[matt]

'Destroying the valve' - well the cartel has to cope with guiding the least knowledgeable 'test' person. A decent engineer should be able to differentiate between damaging corrosion and a bit of surface crud.

I understand that it should be removed and replaced with the correct one. But there is no need to destroy a working valve just because someone though it "best".

[Tim Digger]

I understand that it should be removed and replaced with the correct one. But there is no need to destroy a working valve just because someone though it "best".

What do you do with it though? Only really useful to a German with the particular type of cylinder. Return to owner so it remains in the system to be used in error later and continues to cause problems. Destroy or render useless and return are really the only options.

[ebt]

What do you do with it though? Only really useful to a German with the particular type of cylinder. Return to owner so it remains in the system to be used in error later and continues to cause problems. Destroy or render useless and return are really the only options.

How about return to legal owner with an explanatory note.

Can you imagine putting your car in for MOT, only to be told "sorry sir, it had lens adaptors for the continent, so we scrapped it".