American Tank — 500 gal, 265 PSIG Process Tank

Is this ASME or DOT rated, and what does that allow me to do with it?

This vessel is ASME U-stamped, which certifies it for stationary pressure vessel service at industrial facilities. ASME U-stamp allows use as fixed process equipment but does not permit highway transport of pressurized contents, which requires DOT certification.

What is the MAWP and capacity at service pressure?

The listing states a 265 PSIG pressure rating and 500-gallon capacity. Maximum allowable working pressure (MAWP) should be confirmed from the vessel nameplate, as the listed pressure rating may represent design pressure, MAWP, or a derated service limit—ask the seller for the stamped MAWP and whether any engineering derates apply.

What is the requalification or inspection status?

The listing does not provide current inspection or certification status. ASME pressure vessels typically require periodic internal and external inspections per jurisdiction and insurance requirements—request documentation of the most recent inspection, any API 510 reports, and remaining thickness measurements before committing.

What should I inspect before putting it into service?

Verify the nameplate is legible and matches stated specifications, then inspect shell and heads for corrosion, pitting, dents, and prior repairs. Check all penetrations, nozzles, and flanges for integrity, and confirm the condition of internal linings if previously in corrosive service—prior contents often dictate required cleaning and may restrict future use based on material compatibility.