Re: [PSUBS-MAILIST] Request identification of pressure air tanks.

[Warren Greenway <opensourcesub@yahoo.com>]

I searched and struck out on the manufacturer.
Normally
the tank will be marked with a manufacturer name or
logo. If there are no markings then I'm not sure.

Warren.

--- Carsten Standfuss <MerlinSub@t-online.de> wrote:
> Thank you Warren and Jay. 
> 
> Any chance to identfiy the maker with this figures ?
> 
> 
> regards Carsten 
> 
> jbarlow@bjservices.ca schrieb:
> > 
> > minimum temp for use at 4000 psi is 4 degrees
> Fahrenheit
> > 
> > It is working pressure not test. The Test
> pressure, and safety factor (and
> > thus destruction pressure) depends on what they
> were manufactured for and
> > thus what section of the code they fall under. 
> Also intended service would
> > affect the corrosion allowance and thus have a
> great impact on the safety
> > factor.  4000 would be very conservative though.
> > 
> > Be careful what NPT fitting you get.  Most are
> only 160 psi.  You can get
> > 5000, 7500, & 10,000 psi ones though.
> > 
> > Jay.
> > 
> > 
> >                       Warren Greenway
> >                       <opensourcesub@yahoo.com>   
>      To:       personal_submersibles@psubs.org
> >                       Sent by:                    
>      cc:
> >                       owner-personal_submersible  
>      Subject:  Re: [PSUBS-MAILIST] Request
> identification of pressure air tanks.
> >                       s@psubs.org
> > 
> > 
> >                       24/10/2003 09:20 AM
> >                       Please respond to
> >                       personal_submersibles
> > 
> > 
> > 
> > I wouldn't worry about them being foreign tanks as
> > long as they are from the US or UK. The first set
> of
> > markings tells the maximum pressure, including a
> small
> > safety margin, at a given temperature. MOWT isn't
> on
> > the tanks I've seen. The other markings are
> > manufacturer numbers for tracking the tank. They
> > include date and sequential number. What size is
> the
> > thread? They usually have a 1/2" or 3/4" NPT on
> USA
> > tanks of that size for drainage. An NPT plug or
> valve
> > generally seals the hole. You should be able to
> buy
> > any
> > pipe/valve/plugs/adapters you might need from
> > www.mcmaster.com
> > 
> > Warren.
> > 
> > --- Carsten Standfuss <MerlinSub@t-online.de>
> wrote:
> > > Hi submadmans - I have a request.
> > >
> > > I can purchase two douzend units of second hand
> > > pressure air or gas
> > > storage tanks from a scrap place - and they look
> > > like new. Unfortunatly
> > > the are from foreign country - probably England
> or
> > > US.
> > >
> > > They have the size of our 50 Liter tanks and
> labeled
> > > as :
> > >
> > > MAW 4000 PSI APP 220 F/3 AT 200°
> > > MOWT 4° AT 4000 PSI
> > > MAN FR N ° 4842/2/28/98
> > > build 1998
> > >
> > > The have one valve on the top and a tread hole
> on
> > > the bottom.
> > >
> > > I realize that 4000 PSI is about 275 atmosphere
> > > (bar) but is this the
> > > work, test or destroy pressure ? What means all
> the
> > > other marks ?
> > > The tread hole to drainage (?) the bottles is
> very
> > > unusual here - is
> > > there a standard plug available ? Any help
> welcome.
> > >
> > > We have the first snow of the year today here
> and I
> > > make a quick picture
> > > of my sub. It should be at the Moki files.
> > > http://www.prismnet.com/~moki/subfiles.html
> > >
> > > Best regards Carsten
> > >
> > 
> > __________________________________
> > Do you Yahoo!?
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> search
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> 


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