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Author - Keith Hall

Biography to follow.


Safety relief valves

Valves are used all along the industrial gas and cryogenic gas supply chains – for production and transportation, for trans-fill operations into storage containers, and in end-use customer piping circuits.



Invaluable valves, part 2

Valves are used all along the industrial gas and cryogenic gas supply chains – from production and transportation to trans-fill operations into storage containers. Three categories of valves used are: 1) valves that isolate product...


Invaluable valves, Part 1

Parts 1 and 2 of this this primer discuss three common types of flow isolation and control valves used in the cryogenic industry. Part 1, below, will focus on globe and gate valves, their basic...



How full is full?

Imagine that you are filling a cryogenic tank sitting on weight scales. You fill it to the proper fill density from a tank supplying very cold zero psi liquid and record the weight. You then...


CO2 fundamentals and safety, part one

The carbon dioxide (CO2) molecule is composed of one carbon atom covalently bonded to two oxygen atoms. At less than 0.04%, carbon dioxide is still the fourth most common gas present in the earth’s atmosphere....


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