UM Stamp

[BusterCherry]

What are the limitations regarding the size and type of vessel when fitted with the UM stamp. What pressure vessel construction companies are permitted to use this UM stamp??

Thank you in advance

 

[jte]

Buster-

See VIII-1 U-1(j) for the details. The volume limits are 5 cu.ft. and 250 psi, 3 cu.ft. and 350 psi, and 1½ cu.ft. and 600 psi. Interpolation is permitted.

You can find a list of UM certified companies by searching for UM certificate at

http://cstools.asme.org/HolderSearch/?IMAGE.X=15\&IMAGE.Y=15

jt

 

[GenB]

UM stamps are issued to the ASME to qualified shops, it is not automatic, the original stamp will have to be issued in the trienial ASME survey then renewal every year (for the next 2 years) bthe A. agency,
The UM stamp is the same as the U stamp but with the limitations in U-1j; vessels stamped with UM are not registered and can not be registered w/the Ntl Bd.
ER

 

[mihir5577]

Hi lostsailor,
Thanks...
Now i have to change dimensions...
Now same part with 4" std. blk erw pipe and 36.5" height.
Total volume will be Only 0.270 cu.ft. and desigh pressure
is 150 psi.
Now which Asme code will be consider?
Section Viii-div.i (U or UM) or section I ????
Pls. reply me soon...
Thanks
M.S

 

[mihir5577]

hi,
i want to build water tube boiler @160 psig by plates.
instead of bottom drum i'll have to use tank and i will have to weld tubes on it.
Will i have to calculate this tank by stayed bolt surfaces method or etc?
From where i'll find this calculations?
Which calcs. i'll have to use?
Is ther any website available?
Pls. advice me ASAP.
Thanks in advance.
Mihir5577

 

[GenB]

Is it water boiler or steam boiler, the construction is different.
Is this a Code boiler or non-code homemade?.- if you do not how to calc. you are better off finding a Mech Eng to do it for you otherwise you may blowup yourself.
er
generalboiler