INSULATION FOR PIPING

A foamed insulation for cryogenic pipe lines comprised of a pair of preformed, semicircular foamed insulation half-sections is described. The faying surfaces are coated with a polyurethane adhesive and bonded together about the pipe. The faying surfaces of the pipe and inner radii of the half-sections are not bonded together. The ends of the foamed insulation half-sections are tapered and a knitted outer material is stretched over the pipe, the tapered ends, and the body of the mated half- sections and extends over the pipe beyond each tapered end. A polyurethane resin coating is applied to the knitted outer material to form a seal and prevent air circulation through the half-sections and provide abrasion resistance. A process of insulating a cryogenic pipe line and a process for forming the preformed insulation half- sections is also described.

• Supplemental Notes:
  • Government-owned invention available for licensing.
• Corporate Authors:

  National Aeronautics and Space Administration

  Lyndon B. Johnson Space Center
  Houston, TX  United States  77058
• Authors:
  • Lerma, G
• Publication Date: 1975-12-23

Media Info

• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Cryogenic materials; Electric insulating materials; Foams; Insulating materials; Insulation systems; Liquefied natural gas; Pipe; Pipelines
• Old TRIS Terms: Foam insulation; Insulated pipelines; Lng insulation; Lng piping; Pipe insulation
• Subject Areas: Marine Transportation; Materials; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00136287
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: N76-16245/2 Pat. Appl.
• Contract Numbers: NAS9-14000
• Files: TRIS
• Created Date: Jul 13 1976 12:00AM