If you are buying a used tank, look for a REE number

October 23rd, 2007   Filed Under Uncategorized  

If you are buying a used tank, especially a low pressure (LP) tank, look around the top of the tank where the serial number is for “REE” and then a number.  This Rejection Elastic Expansion (REE) number is what is used to give the LP tank the “+” rating so it can be filled to 10% over the service volume stamped on the tank.  Without the REE number, a hydrostatic test facility will only rate the tank to the service pressure stamped on the tank.  Unfortunately, LP tanks are marketed according to their “+” volumes, so if you have a LP 95 that cannot get its rating, then you really have a LP 85.

It may be possible to get the REE number for the tank from the manufacturer if you send them the tank serial number.


Comments

2 Responses to “If you are buying a used tank, look for a REE number”

  1. Ken on December 3rd, 2007 9:59 pm

    I assume this only applies to steel tanks, right?

  2. Rob on December 3rd, 2007 11:27 pm

    Correct…only steel tanks.

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