CCH Custom Build 3" CL.300 — 140,000 L Cryogenic Storage Tank

What is the current vacuum reading, and what is the NER?

The listing does not include vacuum quality or net evaporation rate data. Ask the seller for the most recent vacuum pressure reading (typically measured in microns or torr) and the current NER in percentage-per-day. Cryogenic tanks of this size typically show NER values between 0.2% and 0.8% per day when the vacuum is intact, with readings above 1% indicating potential vacuum degradation requiring re-evacuation or perlite replacement.

Is the data plate legible, and is the U-1A available?

The listing does not confirm data plate condition or documentation status. Request photos of the data plate showing the ASME stamp, National Board number, design pressure and temperature, and year of manufacture, and ask whether the original U-1 form (Manufacturer's Data Report) is available. The U-1A is the Report of Postfabrication Inspection and Heat Treatment, which applies only to vessels built under newer code editions or when post-weld heat treatment was required; most standard cryogenic tanks have only the U-1.

What is involved in relocating and re-commissioning it?

The listing does not indicate whether the tank is currently in service, drained, or purged. Ask the seller about current status, internal cleanliness, required decommissioning steps, and availability of lifting lugs or transport saddles. Re-commissioning a used cryogenic tank typically requires jurisdictional inspection, vacuum and NER verification, pressure relief device recertification or replacement, and instrument calibration; if the vacuum has degraded, re-evacuation or perlite service may add weeks to the timeline.