From start to finish, we here at US Tank & Cryogenic Equipment take pride in the exceptional quality of our entire operation. Every cylinder that enters our facility goes through a rigorous testing and restoration process.

First, cylinders are received by our Shipping Department and provided with a tracking sheet. The tracking sheet ensures each cylinder goes through every sector of our warehouse and verifies each cylinder adheres to DOT requirements.

Prior to any repairs, each cylinder is tested with our state-of-the-art Pfeiffer Adixen ASM 340 Spectrometer. This device assists our team in detecting both internal and external leaks.
After the cylinders have been checked for leaks, they are placed on vacuum racks. The inner cylinder is heated to 400°F and a vacuum is pulled for ninety-six continuous hours before being brought back to the original manufacturer’s specifications, or better.

Following the completed vacuum process, the cylinders are taken to our Top Works department. The Top Works section provides an area where parts are removed and tested. Our experts then determine whether the components will be cleaned or replaced entirely. Then we properly set the cylinder’s regulators and install appropriate safety relief valves to each cylinder’s DOT rating.

Next, Normal Evaporation Rate (NER) testing is done on every cylinder. Each cylinder is charged with one hundred pounds of liquid nitrogen and is examined over a period of three days. On the fourth day, the cylinder is tested for leaks once more.
After a controlled environment test, stainless steel cylinders are cleaned with an oxygen compatible cleaner and then buffed to a high shine. Carbon steel cylinders are blasted and repainted.

Finally, each cylinder is palletized, wrapped, boxed and tagged for shipment.
With 25 years of experience and our state-of-the-art facility, US Tank & Cryogenic Equipment is the premier cryogenic tank repair and refurbishing expert in the United States.