PFI is a world leader in mac
hining rigid foam plugs for cryogenic applications. PFI owns custom-built machines that make machine foam plugs or corks in a variety of sizes. Plugs and corks form part of a cryogenic tank or Dewar. PFI fabricates and machines rigid foam rods from 1 inch to 6 inches in diameter, and machine rigid foam plugs or corks as large as 92 inches and tolerances of .010 inch
Currently, PFI manufactures more than 50% of all the plugs and corks in the United States. PFI also has international clients.
The company works with many distinct types of rigid foam, each having a diverse set of properties. PFI offers foam that can hold temperatures from -320°F to +350°F. PFI can select materials to meet customer requirements for various qualities.
As the Vice President of one of PFI’s long-standing clients, a major cryogenics equipment manufacturer, told us:
“Nobody can touch PFI’s capabilities in fabricating cryogenic corks and plugs. They have been a true partner with us since 1971.”
PFI also machines acrylic rods for aircraft drive shafts used for hydraulic fluid distribution.
What Is Cryogenic Foam?
Foam insulation is a minimal elastomeric or polymer that offers a thermal barrier around a product. It can also be a thermal protector between an interior area and a warm/cold source. Due to its capacity to prevent conduction, radiative, and rate of heat transfer, it has stronger insulating characteristics than typical fiberglass insulation. Most varieties also help to prevent air vents, reduce noise, and keep dampness out.
In cryogenic equipment, there are numerous forms of insulating that may be utilized. Expandable foam, fuel powder and synthetic fibers, vacuum alone, evacuation particles, and multilayered insulations are some examples.
