Cross fill whip rated "200 bar"

I recently ordered mail order a cross-fill whip from here:
http://www.danshop.com/30200.html
You can see it is rated "200 bar", though you can optionally purchase a "300
bar" version. I was in a bit of a hurry when I ordered, so presumed that the
200bar version is what I needed since I run my tanks at 220bar normally, and
presumed that the 300bar was for those running 300bar tanks. But now I am
wondering if I may have been a bit rash. What sort of redundancy is built
into these things? Was I right to assume that the 200bar was what I needed?

Ric wrote:
> I recently ordered mail order a cross-fill whip from here:
> http://www.danshop.com/30200.html
> You can see it is rated "200 bar", though you can optionally purchase
> a "300 bar" version.

It's the gauge. I doubt if they use two types of hose. My
fill whip hoses are rated at 1100 and 1400bar (normally
printed every few feet down the pipe).

nigelH

"Nigel Hewitt" <nigelh@REMOVETHISnigelhewitt.co.uk> wrote in message
news:bo8r22$5t1$2@sparta.btinternet.com...
> Ric wrote:
> > I recently ordered mail order a cross-fill whip from here:
> > http://www.danshop.com/30200.html
> > You can see it is rated "200 bar", though you can optionally purchase
> > a "300 bar" version.
>
> It's the gauge. I doubt if they use two types of hose. My
> fill whip hoses are rated at 1100 and 1400bar (normally
> printed every few feet down the pipe).
>
The hose actually says "200bar" - but the gauge goes to 230 bar!

On Tue, 4 Nov 2003 20:11:04 +0100, "Ric" <spam@off.com> wrote:

>
>"Nigel Hewitt" <nigelh@REMOVETHISnigelhewitt.co.uk> wrote in message
>news:bo8r22$5t1$2@sparta.btinternet.com...
>> Ric wrote:
>> > I recently ordered mail order a cross-fill whip from here:
>> > http://www.danshop.com/30200.html
>> > You can see it is rated "200 bar", though you can optionally purchase
>> > a "300 bar" version.
>>
>> It's the gauge. I doubt if they use two types of hose. My
>> fill whip hoses are rated at 1100 and 1400bar (normally
>> printed every few feet down the pipe).
>>
>The hose actually says "200bar" - but the gauge goes to 230 bar!

Somewhere in the back of my mind I seem to remember a BS requirement
that gauges should go up to 1.5 times the normal working pressure. I
think it is something to do with the elastic limit of the gauge
mechanism. Hence 230 bar gauges are 345bar rated, and 300 bar gauges
are 450 bar rated. So what you have is a gauge with a working pressure
of 153 bar on 200 bar hose.

Pete S.

<Pete S.> wrote in message
news:8a6gqv8sbdlvmahvltgban6lr371v9om5c@4ax.com...
> Somewhere in the back of my mind I seem to remember a BS requirement
> that gauges should go up to 1.5 times the normal working pressure.

I would expect something similar applies to hoses. I would imagine a
"200bar" hose is in fact safe to use up to a much higher amount
(particularly as it is German sourced and their TUV requirements are
generally similar to BS). I'll ask on de.rec.tauchen. But anyway, I had it
to 230 and it was ok...

"Ric" wrote

> > > You can see it is rated "200 bar", though you can optionally purchase
> > > a "300 bar" version.
> >
> > It's the gauge. I doubt if they use two types of hose. My
> > fill whip hoses are rated at 1100 and 1400bar (normally
> > printed every few feet down the pipe).
> >
> The hose actually says "200bar" - but the gauge goes to 230 bar!

Sounds to me like you went to the wrong source for your whip. A hose only
rated to 200 bar would not seem to be suitable for filling tanks to
stabilize at that pressure. If you want 200 bar when everything cools back
down, you're going to have to fill to more than 200 bar initially, or do an
awful lot of topping off.

Lee

On Wed, 5 Nov 2003 09:20:47 +0100, "Ric" <spam@off.com> wrote:

>
><Pete S.> wrote in message
>news:8a6gqv8sbdlvmahvltgban6lr371v9om5c@4ax.com.. .
>> Somewhere in the back of my mind I seem to remember a BS requirement
>> that gauges should go up to 1.5 times the normal working pressure.
>
>I would expect something similar applies to hoses. I would imagine a
>"200bar" hose is in fact safe to use up to a much higher amount
>(particularly as it is German sourced and their TUV requirements are
>generally similar to BS). I'll ask on de.rec.tauchen. But anyway, I had it
>to 230 and it was ok...

Err, I think you misunderstood my last post 100%.

If the numbers are up to 230 bar the WORKING pressure is lower, not
higher.

Pete S.

I did understand your prost concerning the gauge. My comment was about the
hose. I think a "200bar" hose is likely to have a safe-working pressure
considerably higher. But anyway I asked on de.rec.tauchen and apparently I
am ok, but thanks for the help anyway!