Fiba I Beam Frame ASME NB Div-3 — 39.0 gal 15,000 PSI Packaged Vessel

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

This vessel is ASME NB Division 3 certified, which qualifies it for stationary service at industrial facilities. Division 3 construction is specifically intended for high-pressure applications beyond Section VIII capabilities, allowing operation at the rated 15,000 PSI working pressure in fixed installations. Unlike DOT-rated vessels, this is not approved for transport over public roads while pressurized.

What is the MAWP and capacity at service pressure?

The vessel is rated for 15,000 PSI maximum allowable working pressure with a total capacity of 39.0 gallons. The listing does not specify whether this capacity is water volume or gas storage at working pressure, so confirm with the seller whether this is the NB stamped water capacity or calculated gas storage volume.

What should I inspect before putting it into service?

Verify the NB stamp, review the U-1A manufacturer's data report for design details and material traceability, and inspect all pressure-containing welds and the I-beam frame for any shipping or storage damage. Division 3 vessels require qualified inspection before initial service, so confirm that closure seals, pressure relief devices, and all connections meet your facility's pressure equipment code requirements and that you have documentation sufficient for your jurisdiction's registration process.