CCH Custom Build 25K — 25,000 gal Cryogenic Storage Tank

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

The listing does not provide current vacuum readings or normal evaporation rate (NER) data. Request documentation from the seller showing recent vacuum readings in microns and NER as a percentage of capacity per day, ideally from the last twelve months of operation. Vacuum degradation and rising NER are the primary indicators of annular space contamination or inner vessel integrity issues on tanks this size.

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

The listing does not confirm data plate condition or the availability of ASME Form U-1A documentation. Ask the seller for photographs of the data plate showing the ASME stamp, National Board number, design pressure, MAWP, and year of manufacture, along with copies of the U-1A and any U-2 or U-3 partial data reports. Without these documents, re-stamping or jurisdictional acceptance becomes significantly more complex.

What is involved in relocating and re-commissioning it?

Based on the 57" x 46" x 246" dimensions, this is a horizontal tank requiring heavy rigging and likely escort transport from Waxahachie, TX. Re-commissioning typically involves annular space evacuation and performance testing, pressure vessel inspection per the National Board Inspection Code, relief valve recertification, and instrumentation calibration—though the timeline depends entirely on vacuum integrity and any damage incurred during the pending visual inspection or transport.