CPI 22'-0" x 20" ASME Packaged Pressure Vessel — 3,500 Gal, 3,750 PSIG

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

This vessel is ASME Code construction, which qualifies it for stationary installation at your facility for high-pressure gas storage and distribution. ASME vessels are designed for fixed service and cannot be transported filled; if you need a transportable container, you'd require DOT certification instead.

What is the MAWP and capacity at service pressure?

The vessel is rated for 3,750 PSIG and holds 3,500 gallons. The listing does not specify whether 3,750 PSIG is the MAWP or a derated working pressure, so confirm with the seller whether you have the full design pressure available or if this is already accounting for a safety margin or corrosion allowance.

What is the requalification or inspection status?

The listing does not provide current inspection or requalification status. Ask the seller for the most recent external and internal inspection dates, the nameplate data report, and any thickness testing or hydrostatic test records to understand remaining service life and your recertification timeline.

What should I inspect before putting it into service?

At minimum, verify wall thickness against the data report to assess corrosion, inspect all nozzles and penetrations for cracking or thread damage, and check the condition of internal coatings if present since previous service chemistry affects what gases you can safely store. Have a qualified inspector review the nameplate, verify pressure relief devices are in-date, and confirm all documentation is present for your jurisdiction's requirements.