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Trey wrote:

> I just got a new OMS tank and had a question about the markings.  On the side
> with all the normal stuff (DOT,size,serial number,etc.) it has stamped
> "WARNING DO NOT OVERPRESSURE."  This is not on any of my other OMS tanks. 
> This one is a new 112cuft.  which I assume (correct me if I'm wrong) is
> replacing the old 108's.  I have some old 121's (now they are listed as
> 125's_) and they don't have the message stamped on them.  Is this just
> something the lawyers or DOT made them put on?  Does anyone know if they are
> still using the same materials/construction?

I spoke with John Griffit, the owner of OMS, and he stated the following:

"The DO NOT OVERPRESSURE stamp is an OMS requirement, not something any
government agency requires.  The stamp does away with the sticker we used to
put on the tanks and serves, in part, as legal protection for us, and
protection for the people filling the tank.  The manufacturer of the
cylinder remains the same and the material used is a proprietary alloy of
chrome-molly.  Note that OMS cylinders are the only cylinders on the market
that are ultra-sonically tested."

Hope this answers your questions Trey.

Bernie Chowdhury

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