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Looking for ASME indirect tanks, any ideas?

Paul Pollets
Paul Pollets Member Posts: 3,656
Viessmann V300 tanks are ASME rated. 316Ti stainless, robotically welded and X-ray inspected. Their 53, 79 and 120g tanks are all rated.

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  • tim smith
    tim smith Member Posts: 2,752
    Looking for ASME indirect tanks, any ideas?

    This was posted on wall a while ago and I can't remember the name. Thanks Tim
  • Steven Gronski
    Steven Gronski Member Posts: 98
    You need ASME if your............

    indirect fired water heaters, regardless of gallons, w/ inputs of 200 mbh or above need ASME tanks. Indirects or storage tanks w/ capacities of 120 gallons, or more, require ASME. I have used Rudd, and AO Smith. The differnce of an ASME tank is usally double the price because the welds are xrayed, and they install some come of visual inspection port on them.



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  • Glenn Sossin_2
    Glenn Sossin_2 Member Posts: 592
    Differences

    Based on converstations with water heater manufacturers, I think most of this right.

    There is a difference between ASME constructed and ASME tanks. Heres what I was taught many years ago. The ASME tanks are made from a different grade and/or thickness of steel depending on the application, they are double welded, and have the ASME engineers number stamped onto the tank. There is suppose to be an ASME engineer on site to witness/supervise the construction/manufacturing of the product.

    The ASME constructed tanks, are made with the same steel, same double welds, but no engineers stamp. Anotherwords it's built the same way but no ASME engineer is present during the manufacturing process to stamp it. The manufactured cost is now less because they didn't have to pay to have an ASME engineer superising each step of the manufacturing process but its built to the same standards.

    So the question becomes, do you actually need an ASME rated tank, or can you use an ASME contructed tank. I belive all storage tanks 120 and over have to be ASME constructed. Thats why you see the 120gal storage tanks acutally have 119 gallons in them - clever aren't they.

    What acutally are you using the tank for. John Wood Company located in Oaks PA, has all sorts of tanks including ASME types. If you like, contact me, perhaps we can help you gsossin@tashsales.com

    Maybe there is an ASME engineer lurking on the wall to confirm??
  • ASME meanings....

    Always, Sometimes, Maybe, EXCEPT!

    also, and more appropriately,

    A Substantial Monetary Exchange.

    Most all manufacturers have an ASME model. now, for and off the record, the reverse indirects (Turbomax/Ergomax) are exempt from the ASME tank codes. They are heat exchangers and subject to the U code section of ASME, and as long as you have a manual reset high limit set for 210 degrees F, then they will let you fly here in Colorado....

    Your milage may vary and your local inspectors intrepretation may vary as well. Best to check with those enforcing as opposed to getting caught after the fact.

    ME
  • tim smith
    tim smith Member Posts: 2,752
    Indirects

    Here in Seattle, if you are over 200 mbh boiler size, we have to use a ASME vessel for indirect, U stamp. I am trying to locate mfr of a good indirect. Would rather not use glass lined but I think I am stuck with that. Any other mfrs you can think of, Tim. Thanks in advance
  • tim smith
    tim smith Member Posts: 2,752
    Reply to

    > Based on converstations with water heater

    > manufacturers, I think most of this

    > right.

    >

    > There is a difference between ASME

    > constructed and ASME tanks. Heres what I was

    > taught many years ago. The ASME tanks are made

    > from a different grade and/or thickness of steel

    > depending on the application, they are double

    > welded, and have the ASME engineers number

    > stamped onto the tank. There is suppose to be an

    > ASME engineer on site to witness/supervise the

    > construction/manufacturing of the product.

    >

    > The

    > ASME constructed tanks, are made with the same

    > steel, same double welds, but no engineers stamp.

    > Anotherwords it's built the same way but no ASME

    > engineer is present during the manufacturing

    > process to stamp it. The manufactured cost is now

    > less because they didn't have to pay to have an

    > ASME engineer superising each step of the

    > manufacturing process but its built to the same

    > standards.

    >

    > So the question becomes, do you

    > actually need an ASME rated tank, or can you use

    > an ASME contructed tank. I belive all storage

    > tanks 120 and over have to be ASME constructed.

    > Thats why you see the 120gal storage tanks

    > acutally have 119 gallons in them - clever aren't

    > they.

    >

    > What acutally are you using the tank

    > for. John Wood Company located in Oaks PA, has

    > all sorts of tanks including ASME types. If you

    > like, contact me, perhaps we can help you

    > gsossin@tashsales.com

    >

    > Maybe there is an ASME

    > engineer lurking on the wall to confirm??



  • tim smith
    tim smith Member Posts: 2,752
    Reply to Glenn

    Glenn, This is an apartment house that my load is over 200000 btu. I therefore have to have a stamped tank to hook up to it here in Seattle. I really would like a stainless tank if possible so I am hoping to find some alternates to glass lined. Thanks, Tim
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