High Performance Vacuum Insulation

R-values are used to measure an insulation material’s thermal resistance. Insulation materials with higher R-values can reduce heat transfer more effectively. U-values are used to measure thermal transmittance. Insulation systems with lower U-values have a lower rate of thermal transmittance than those with a higher U-value.

With Insulon® Technology, we customize insulation performance to suit your application. Our goal is to provide ideal insulation for your system in order to conserve heat, reduce energy demands, and improve overall performance. All Insulon® parts drastically reduce convective and conductive heat transfer. For the most demanding applications, it may be necessary to reduce heat transfer due to radiation as well. For these applications, our engineers may incorporate our proprietary high temperature multilayer insulation (MLI) to reduce radiation heat transfer.

Have questions about whether Insulon® is right for your application? Submit an inquiry here.

Want to see a demonstration of our high performance vacuum insulation?

High Temperature Insulation Performance

High temperature vacuum insulation surface temperature analysis conducted at steady-state

Surface Temperature Analysis

Surface temperature analysis of a 1.1 mm thick vacuum insulated tube transporting hot air from a heat gun. Graph compares external surface temperature to the hot air temperature at the inlet. External surface temperature was measured at the midpoint (3 inches along the 6-inch tube). Ambient temperature was 23°C.

Vacuum insulated tube dimensions:

  • Length: 6 in. (152.4 mm)
  • Outer diameter (OD): 0.563 in. (14.3 mm)
  • Inner diameter (ID): 0.480 in. (12.2 mm)
  • Overall wall thickness: 0.042 in. (1.1 mm)
Thin vacuum insulated tube with Insulon Technology. 6 inches long, 0.56 inch OD, 0.50 inch ID
Sample vacuum insulated tube made with Insulon® Technology. 6 inches long, 0.50 inch ID, 0.56 inch OD. Overall wall thickness 0.042 inches (1.1 mm).
High temperature vacuum insulation temperature drop analysis comparing inlet and outlet temperatures

Inlet-Outlet Temperature Drop Analysis

Temperature drop analysis comparing inlet and outlet temperatures of a vacuum insulated tube with 1.6 mm overall wall thickness. The vacuum insulated tube transported hot air from a heat gun while inlet and outlet temperatures were recorded. External surface temperature was recorded at the 100°C inlet and 500°C inlet. External surface temperature was measured at the midpoint (6 inches along the 12 inch tube). Ambient temperature was 23°C.

Vacuum insulated tube dimensions:

  • Length: 12 in. (30.5 cm)
  • Outer diameter (OD): 3/8 in. (9.5 mm)
  • Inner diameter (ID): 1/4 in. (6.4 mm)
  • Overall wall thickness: 1/16 in. (1.6 mm)
High performance vacuum insulated tube 12 inches long, 0.25 inch ID, 0.38 inch OD. Insulon Technology
Vacuum insulated tube with Insulon® Technology. 12 inches long, 0.250 inch ID, 0.375 inch OD. Overall wall thickness 0.0625 inch (1.6 mm).
Thermal cycling analysis of an Insulon vacuum insulated part

Thermal Cycling Analysis

Thermal analysis of high temperature vacuum insulation exposed to 20,000 thermal cycles at 450°C. Consistent thermal insulation performance over many cycles demonstrates our ability to retain the integrity of the vacuum space. One heat cycle is defined as a 3-minute ramp up during which the vacuum insulated component reaches steady-state, followed by a 2-minute cool-down period. Ambient temperature was 23°C.

Approximate dimensions:

  • Length: 30 mm
  • Outer diameter (OD): 15 mm
  • Inner diameter (ID): 13 mm
  • Overall wall thickness: 1 mm

Cryogenic Insulation Performance

Thin vacuum insulation surface temperature analysis conducted at steady-state using liquid nitrogen

Surface Temperature Analysis

Insulation performance demonstrated with a surface temperature analysis. Liquid nitrogen (-196°C) was run through a 6 inch vacuum insulated tube built with Insulon® Technology. External surface temperature was compared between the Insulon® vacuum insulated tube, a double-walled air-insulated tube, and a single-walled non-insulated tube. External surface temperatures were measured at the midpoint (3 inches along the 6 inch tubes). Ambient temperature was 23°C.

Vacuum insulated tube  dimensions:

  • Length: 6 in. (152.4 mm)
  • Outer diameter (OD): 0.563 in. (14.3 mm)
  • Inner diameter (ID): 0.480 in. (12.2 mm)
  • Overall wall thickness: 0.042 in. (1.1 mm)
Thin vacuum insulated tube with Insulon Technology. 6 inches long, 0.56 inch OD, 0.50 inch ID
Sample vacuum insulated tube made with Insulon® Technology. 6 inches long, 0.50 inch ID, 0.56 inch OD. Overall wall thickness 0.042 inches (1.1 mm).
Steady-state external surface temperature analysis of an ultra thin vacuum insulated tube

Surface Temperature Analysis

External surface temperature analysis conducted at steady-state. Liquid nitrogen (-196°C) was run through a 6 inch long, 14 gauge vacuum insulated sheath. Graph compares external surface temperature of the ultra-thin sheath with liquid nitrogen temperature at the inlet. External surface temperature was measured at the midpoint (3 inches along the 6 inch sheath). Ambient temperature was 23°C.

Vacuum insulated sheath dimensions:

  • Length: 6 in. (152.4 mm)
  • Diameter: 14 gauge
  • Overall wall thickness: < 0.5 mm
Small diameter vacuum insulated tubes are displayed next to a U.S. dime to demonstrate small size
Vacuum insulated container liquid nitrogen boil off analysis compared to air-insulated container

Cryogenic Boil-Off Losses Analysis

Reducing boil-off losses is crucial for cryogenic storage and transport systems to reduce material losses. For this analysis, liquid nitrogen (-196°C) was allowed to evaporate from a 2.5-inch Insulon® open-top can and a non-insulated, single-walled, open-top can. Boil-off rates were recorded for 3 minutes. Ambient temperature was 23°C.

Vacuum insulated can dimensions:

  • Height: 2.5 in. (6.4 cm)
  • Outer diameter (OD): 1.03 in. (26.2 mm)
  • Inner diameter (ID): 0.92 in. (23.4 mm)
  • Overall wall thickness: 0.055 in. (1.4 mm)
Ultra thin vacuum insulated container 8 cm tall with 1.6 mm overall wall thickness. Insulon Technology
Vacuum insulated container with Insulon® Technology. 8 cm tall with 1.4 mm overall wall thickness.

When applications demand even higher performance, managing radiation heat transfer is key.

Maximize Insulon® Performance with Multilayer Insulation (MLI)

MLI reduces radiation heat transfer for even higher thermal insulation performance

High temperature multilayer insulation installed inside the vacuum annulus of an Insulon vacuum insulated tube

The proprietary vacuum insulation found in every Insulon® part drastically reduces convective and conductive heat transfer, delivering high performance thermal insulation that is sufficient for many applications. If your application requires even higher performance insulation, you may need to reduce heat transfer due to radiation. Our engineers include high density, high temperature multilayer insulation (MLI) in our most advanced Insulon® parts to deliver even greater thermal results. Developed by our in-house engineering team, our proprietary MLI can pack up to 18 layers per inch and is effective in applications up to 1000°C. Installed directly inside the vacuum annulus, our MLI packages deliver increased insulation performance without any additional care or maintenance.

Custom Geometries

Our engineers customize various parameters to adjust insulation performance to suit the thermal requirements of your application. In addition to thermal performance, we design parts to withstand environmental factors that may affect your application including pressure, vibration, and structural loads. The majority of Insulon® parts are based on cylindrical geometries including tubes, pipes, cans, and flasks.