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Flow rate and pressure are constant concerns with cryogenics. When the demand for gas outpaces the output of the liquid cylinder, both pressure and flow rates will drop accordingly. This is when a vaporizer can save the day.

Copper tubing is a popular material in cryogenics because of its ductile nature at low temperatures. But copper is not immune to pinholes and cracking due to daily wear-and-tear and weaknesses introduced by contaminants and general exposure to the elements.

Invented in 1892 by Sir James Dewar, the double-walled cryogenic storage vessel known as a “dewar” revolutionized the cryogenic industry by allowing cryogenic media to be stored for longer periods of time. Though the concept didn’t change much over the years, the biggest innovation came in the form of multilayer insulation, which increased storage times dramatically and made the dewar the industry standard. (Incidentally, it was also discovered that the same construction also kept hot liquids hot, prompting the development of the modern thermos.)

Flow rate and pressure are constant concerns when it comes to cryogenics. When the demand for gas increases higher than the output of the liquid cylinder, both the pressure and flow rate drop in response. Here’s where a vaporizer saves the day.

When was the last time you checked your cryogenic safety valves? More than five years ago? 10? Do you even remember?

Positive displacement systems can be found across a broad range of industries where accurate and precise fluid or gas transfer or pumping is imperative. In the simplest of terms, a positive displacement system displaces a specific quantity of liquid for every revolution or cycle that a pump completes. The flow rate is directly proportional to the speed and number of pump cycles over a given time.