EEMUA 190 mounded bullet

[jtseng123]

Dear all,

We have an US vessel supplier refuses to comply with EEMUA 190 for material properties and test requirements after purchase order already placed. Before PO, they did confirm they will comply.
What their claim is: plant is in US, so only need to comply with ASME Div.1 requirements for material and testing.

EEMUA has more requirements than ASME code on carbon equivalent, UT, impact test, hardness test. For mounded bullet buried under soil and sand, and for plant in US, is EEMUA 190 mandatory ? Will only ASME Div. 1 be sufficient ? Thanks for you opinion.

 

[TGS4]

This is a contractual matter. Consider the EEMUA requirements as "Engineering Notes" that supplement the basic Code requirements.

 

[btrueblood]

Does the PO state that they must comply with EEMUA 190?

 

[jtseng123]

Yes. We specified both Div. 1 and EEMUA 190 in the design code on the data sheet. During bid clarifications, they confirmed. Several months later at this time, they already received the plate material. For sure they overlooked the requirement in the EEMUA and tried to get us buy into the regular plate they ordered, keep saying EEMUA is not applicable to US soil, ASME code is enough.
.

 

[jtseng123]

Attached is the material requirements from EEMUA. For sure equivalent ASME test criteria is acceptable in lieu of EU or PED standard, but values shall meet EEMUA. I believe EEMUA is to ensure plate has sufficiently ductile, and no defect by UT scanning, since bullet is buried under soil, hard to detect defects or repairs.

So back to my original question, can buried bullet, which stores harmful and flammable liquid, be designed just per Div. 1 as a regular vessel without using EEMUA ?

 

[FacEngrPE]

ASME Code Boiler and Pressure Vessel Code is required in most - not all US states.
If you issued your supplier a contract for an ASME BPVC Div 1 and EEMUA 190, then the suppler stating that EEMUA 190, is not "required" is as true as saying that the BPVC is not required in Texas. The position is not a valid response to your contract, particularly as they likely charged an adder for saying they would meet your requirement.

The question regarding can a "Bullet" be designed to the BPVC Div 1 without the added of EEMUA 190. Almost certainly, but I suspect that the reasons that caused you to determine EEMUA 190 needed to be used for material properties, would result is some properties requirements that the supplier would consider equally onerous.

If they ordered the wrong material, and are attempting to get you to let them deliver it in the vessel. You at a minimum need to find it fit to task, otherwise take them to task for non performance.

Fred

 

[r6155]

Why did you specify EEMUA?, carbon steel plates (say SA 516) are ductile for service you mentioned.

Regards.

 

[jtseng123]

r6155, it has additional testing in EEMUA that may not be required in a common pressure vessel. EEMUA is used for buried drum and is widely known. Not just material, it also tells you how to field construct the buried bullet in great details.

 

[AdamJensen]

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