+1 vote
84 views

Insulation Materials

asked Aug 26, 2014 in Material by belmoreno (2,190 points)

2 Answers

+1 vote
answered Aug 26, 2014 by belmoreno (2,190 points)

All insulation materials, insulation covering, cements, sealers, and accessories should be asbestos free. There are several types of Insulation Materials:

  • Cellular Glass: Cellular glass is a lightweight, rigid insulating material that is ideal for piping and equipment above ground as well as below ground. Cellular glass preformed pipe sections, curved segments, or flat block should be suitable for temperature −450°F to +900°F per ASTM C 552.
  • Expanded Perlite: Expanded Perlite is a inorganic and non-combustible material that is ideal for high temperature piping and equipment. Expanded Perlite preformed pipe sections, curved segments, or flat block should be suitable for temperature 100°F to 1200°F per ASTM C 610.
  • Mineral Wool: Mineral wool is a non-combustible product with a water repellent and vapor permeable material that is ideal for steam and process pipe systems. Mineral wool preformed pipe sections should be suitable for temperature 100°F to 1200°F per ASTM C 547; Mineral wool board insulation per ASTM C 612, Type IV A, IV B or V.  Mineral wool is typically used for noise control applications.
  • Aerogels: (Pyrogel, Cryogel, Spaceloft): A low density and low thermal conductivity insulation material that should be suitable for hot temperatures up to 1200°F, and cold applicable below 140°F.
0 votes
answered Aug 27, 2014 by sicalamanto (1,560 points)

More information regarding insulations that should not be used in certain conditions/environments.

  1. Calcium silicate insulation should not be used except for onshore applications operating above 800°F.
  2. Glass fiber insulation should not be used except for interior applications.
  3. For piping subject to stress corrosion cracking such as austenitic stainless steels, insulation should meet the requirements of ASTM C 795 and the U.S. Atomic Energy Commission Regulatory Guide 1.36.  Handling during manufacturing and installation should be per ASTM C 929.
  4. Insulation containing sodium silicate should not be used for insulation molybdenum-containing austenitic stainless steel (such as Type 316) operating at 1500°F or greater.
  5. Insulating cement should be mineral fiber type per ASTM C 449 / C 449M.
...