300b valve

graham_hk · March 26th, 2006, 02:35 PM

Does anybody have a 300 bar DIN valve that they want to get rid of? Can be in any condition as long as the threads are undamaged.

PM me - thanks in advance

Graham

Ahmed Adly, Marlin Inn DC · March 26th, 2006, 07:53 PM

Why on earth would you want one of those?
I have 2, if you are willing to swap and pay the postal, fine.

**jb2cool** · March 26th, 2006, 10:39 PM

why not? those are supposedly very good vales to use as it it more secure than the 5 thread 232bar version.

NickB · March 27th, 2006, 01:20 PM

Quote: (Originally Posted by jb2cool)

why not? those are supposedly very good vales to use as it it more secure than the 5 thread 232bar version.

Yeah, great idea - until the guys in the gas room fail to notice that you've only got 232Bar tanks (and why should they?).
A few of those fills and your tanks will be running the risk of failing the next hydro.
Believe me, 5 threads is more than adequate for 232 Bar. Have you been reading the internet again Jason?

finbar.taylor · March 27th, 2006, 02:20 PM

Quote: (Originally Posted by NickB)

Yeah, great idea - until the guys in the gas room failto notice that you've only got 232Bar tanks (and why should they?).
A few of those fills and your tanks will be running the risk of failing the next hydro.
Believe me, 5 threads is more than adequate for 232 Bar. Have you been reading the internet again Jason?

Or the guys in the Gas room refuse to fill the cylinders due to the "mismatch" of valve and cylinder.

I know of several places that do this and you will struggle to get a fill with out boots yet alone suspect valve/cylinders.

Fin

PBrown · March 27th, 2006, 02:27 PM

Quote: (Originally Posted by finbar.taylor)

Or the guys in the Gas room refuse to fill the cylinders due to the "mismatch" of valve and cylinder.

that's silly, how do they cope with 232 bar valves on a 207 bar cylinder?

its the job of the filler to check the stampings on the neck of cylinder and fill as appropriate, they have a right to not fill if they suspect that a cylinder is dangerous (understandably), but simply having a 300 bar valve on a 232 bar cylinder shouldn't cause any issues.

cheers,
Paul

*Rich Walker* · March 27th, 2006, 02:27 PM

Quote: (Originally Posted by NickB)

Yeah, great idea - until the guys in the gas room fail to notice that you've only got 232Bar tanks (and why should they?).

Because they're paid to?
Because anyone that fills tanks is obliged to check the WP of the tank, not the valve.
Because, while it's debatable whether its any real advantage to have 300bar valves, there's certainly no disadvantage.
Because if the tank filler is observant enough to notice that your O2 VIP sticker is 1 day overdue, I reckon they'd notice if your tanks were 232.

Rich

Woz · March 27th, 2006, 02:28 PM

It's also against HSE regs to put a 300b valve in a 232 cyl. So don't do it. Unless you have a 300b cyl. In which case carry on.

*Clare Gledhill* · March 27th, 2006, 02:30 PM

Quote: (Originally Posted by finbar.taylor)

I know of several places that do this and you will struggle to get a fill with out boots yet alone suspect valve/cylinders.

Stoney being one

(and I'm talking in this case about valves not boots) had a dreadful fight to get them to fil a mate's set when he had 300 bar fittings on it.

Their response - ah - suppose you lot are cave divers - why not try A clamp regs - they are more secure....

finbar.taylor · March 27th, 2006, 03:03 PM

Quote: (Originally Posted by Woz)

It's also against HSE regs to put a 300b valve in a 232 cyl. So don't do it. Unless you have a 300b cyl. In which case carry on.

Thats what stoney tried saying and then produced a letter from the HSE and when Mark P and I read the letter it said that the HSE had no problem with it but that the individual may refuse to fill any cylinder at their descrestion. This was also the rules I was told to abide by when I worked at the NDC. If the cylinder went bang with me filling it guess who's closest to absorb most of the explosion!

I personaly see nothing wrong with having 300b valves on 200 cylinders but as mentions you may well have problems getting them filled.

As for boots I personaly have no boots on my twins but when working as a gas blender I think it should be mandatory especialy in a busy gas room!

Fin

March 26th, 2006, 02:35 PM	#1 (permalink)
graham_hk(Offline) Pinoy ako pinoy Join Date: Nov 2005 Location: here, there and everywhere Posts: 779	300b valve Does anybody have a 300 bar DIN valve that they want to get rid of? Can be in any condition as long as the threads are undamaged. PM me - thanks in advance Graham

March 26th, 2006, 10:39 PM	#3 (permalink)
jb2cool(Offline) Padawan learner Join Date: Nov 2005 Location: Bracknell, Berkshire Posts: 797	why not? those are supposedly very good vales to use as it it more secure than the 5 thread 232bar version. __________________ http://jb2cool.bulldoghome.com

March 27th, 2006, 01:20 PM	#4 (permalink)
NickB(Offline) Always lowering the tone Join Date: Dec 2005 Location: Cardiff, UK Posts: 341	Quote: (Originally Posted by jb2cool) why not? those are supposedly very good vales to use as it it more secure than the 5 thread 232bar version. Yeah, great idea - until the guys in the gas room fail to notice that you've only got 232Bar tanks (and why should they?). A few of those fills and your tanks will be running the risk of failing the next hydro. Believe me, 5 threads is more than adequate for 232 Bar. Have you been reading the internet again Jason? __________________ SnowHeads / BreastFriends / Free Money!

March 27th, 2006, 02:27 PM	#7 (permalink)
Rich Walker (Online) GUE Instructor Join Date: Nov 2005 Location: Sheffield Posts: 300	Quote: (Originally Posted by NickB) Yeah, great idea - until the guys in the gas room fail to notice that you've only got 232Bar tanks (and why should they?). Because they're paid to? Because anyone that fills tanks is obliged to check the WP of the tank, not the valve. Because, while it's debatable whether its any real advantage to have 300bar valves, there's certainly no disadvantage. Because if the tank filler is observant enough to notice that your O2 VIP sticker is 1 day overdue, I reckon they'd notice if your tanks were 232. Rich __________________ Education, Equipment, Experience GUE training with Rich Walker

March 27th, 2006, 02:28 PM	#8 (permalink)
Woz(Offline) New Member Join Date: Dec 2005 Location: Nottingham Posts: 246	It's also against HSE regs to put a 300b valve in a 232 cyl. So don't do it. Unless you have a 300b cyl. In which case carry on. __________________ www.kitfondle.co.uk Lots of shiny diving tatt for you to spend money on

March 26th, 2006, 07:53 PM	#2 (permalink)
Ahmed Adly, Marlin Inn DC(Offline) New Member Join Date: Feb 2006 Location: hurghada Posts: 849	Why on earth would you want one of those? I have 2, if you are willing to swap and pay the postal, fine.

March 27th, 2006, 02:20 PM	#5 (permalink)
finbar.taylor (Online) New Member Join Date: Feb 2006 Location: Guildford Posts: 85	Quote: (Originally Posted by NickB) Yeah, great idea - until the guys in the gas room failto notice that you've only got 232Bar tanks (and why should they?). A few of those fills and your tanks will be running the risk of failing the next hydro. Believe me, 5 threads is more than adequate for 232 Bar. Have you been reading the internet again Jason? Or the guys in the Gas room refuse to fill the cylinders due to the "mismatch" of valve and cylinder. I know of several places that do this and you will struggle to get a fill with out boots yet alone suspect valve/cylinders. Fin

March 27th, 2006, 02:27 PM	#6 (permalink)
PBrown(Offline) New Member Join Date: Nov 2005 Location: Wiltshire Posts: 198	Quote: (Originally Posted by finbar.taylor) Or the guys in the Gas room refuse to fill the cylinders due to the "mismatch" of valve and cylinder. that's silly, how do they cope with 232 bar valves on a 207 bar cylinder? its the job of the filler to check the stampings on the neck of cylinder and fill as appropriate, they have a right to not fill if they suspect that a cylinder is dangerous (understandably), but simply having a 300 bar valve on a 232 bar cylinder shouldn't cause any issues. cheers, Paul

March 27th, 2006, 02:30 PM	#9 (permalink)
Clare Gledhill(Offline) GUE Instructor Site Admin Pacman Champion! Join Date: Nov 2005 Location: UK Posts: 1,541	Quote: (Originally Posted by finbar.taylor) I know of several places that do this and you will struggle to get a fill with out boots yet alone suspect valve/cylinders. Stoney being one (and I'm talking in this case about valves not boots) had a dreadful fight to get them to fil a mate's set when he had 300 bar fittings on it. Their response - ah - suppose you lot are cave divers - why not try A clamp regs - they are more secure.... __________________ Clare . "Keep away from people who try to belittle your ambitions....Small people always do that, but the really great make you feel that you too can become great." Interested in DIR dive training? Always happy to chat/answer questions so get in touch via PM or visit www.dirdiver.co.uk

March 27th, 2006, 03:03 PM	#10 (permalink)
finbar.taylor (Online) New Member Join Date: Feb 2006 Location: Guildford Posts: 85	Quote: (Originally Posted by Woz) It's also against HSE regs to put a 300b valve in a 232 cyl. So don't do it. Unless you have a 300b cyl. In which case carry on. Thats what stoney tried saying and then produced a letter from the HSE and when Mark P and I read the letter it said that the HSE had no problem with it but that the individual may refuse to fill any cylinder at their descrestion. This was also the rules I was told to abide by when I worked at the NDC. If the cylinder went bang with me filling it guess who's closest to absorb most of the explosion! I personaly see nothing wrong with having 300b valves on 200 cylinders but as mentions you may well have problems getting them filled. As for boots I personaly have no boots on my twins but when working as a gas blender I think it should be mandatory especialy in a busy gas room! Fin