Dekoron-Unitherm’s6200 Cryotube Series
The Next Generation in
Pre-insulated Cryogenic Piping
Dekoron-Unitherm
• Part of the $7 billion Marmon Group which is a Div. Of Berkshire Hathaway
• Over 50 years history as the world leader in the design & manufacture of pre-insulated tubing and small bore piping
• Pre-insulated tubing and pipe are our only business
Our 6200 Cryotube Series
• Through the use of proprietary aerogel insulation materials, Dekoron Unitherm’s 6200 Cryotube system requires on average 70% less space than traditional PIR foam pre-insulated pipe. This reduction in OD improves
• Loading in pipe racks• Relieves congestion in
equipment skids • Reduces the size of wall
penetrations
6200 Cryotube SeriesPre-insulated Piping
Features & Benefits when compared to PIR foam
• Reduced• OD – 50% to 70%• Weight - 30% to 50%
• Lower• Heat gain • ASTM E-96 water vapor
transmission rate – 0.00perm• ASTM E-84 flame spread &
smoke generation – Class “A”
• Hydrophobic insulation
6200 Cryotube SeriesPre-insulated Piping
Offers major Advantages over X-50 PIR Foam & Field Fabrication for 1/2” thru 3” cryogenic pipe sizes
• Available in stainless & copper in coils and sticks
• Lower Installed Cost• by reducing waste• by greatly reducing field labor
• Pre-Engineered System• Has more efficient heat transfer• Has consistent thermal characteristics
• Improved Scheduling• By reducing craft interference• By greatly reducing or eliminating the
need for an insulation contractor• Maintenance Free
Heat Gain & Condensation Control Verification
• A 20 foot section of 6200 Cryotube was designed & fabricated using 3E-Plus Thermal Modeling Software published by NAIMA.
• Thermal properties of the Cryogel Z insulation system are as follows.
Mean
Temperature °FK factor
BTU/hr. / ft. sq.
-328 0.0681
-238 0.0793
-148 0.0852
-58 0.0894
31 0.0956
122 0.1076
212 0.1291
Heat Gain & Condensation Test Results
• Test results were within 1.8°F of the values predicted by 3-E Plus, thereby validating this modeling program for calculating Heat Gain & Condensation control of the 6200 Cryotube system
• The heat loss efficiency of 1” of 6200 Cryotube is equal to 4.43” of urethane foam
• 3-E Plus is available free from the North American Insulation Manufacturers Association at
• www.pipeinsulation.org
ComparisonBased on 3-E Plus Software
6200 Cryotube System PIR Foam System• Tube Size: 1” copper• Process Temperature: -300F• Ambient Temperature: 76F• Wind: 0 mph• Relative Humidity: 65%• Insulation Thickness: 4.43” Urethane Foam C-591, T-VI• Jacket: Cast FR PVC
• Tube Size: 1” copper • Process Temperature: -300F• Ambient Temperature: 76F• Wind: 0 mph• Relative Humidity: 65%• Insulation Thickness: 1” Cryogel• Jacket: Extruded FR PVC
Surface Temperature
Heat GainBTU/hr/ft
Efficiency%
-300 °F 278.30
62.8 °F 16.12 94.21%
Surface Temperature
Heat GainBTU/hr/ft
Efficiency%
-300 °F 278.30
71.3°F 16.18 94.19%
What Is An Aerogel Insulation
• Aerogels are nanoporous solids invented in the 1930’s
• Aerogels are created when silica is gelled in a solvent• When the solvent is removed, what remains is “puffed-up
sand”, with up to 99% porosity• Nanoporosity slows heat and mass transport, providing record-low
thermal conductivity
• Twin innovations moved aerogels from lab curiosity to high-volume industrial product
• Supercritical CO2 extraction process reduces cycle time from months to hours
• Casting the wet gel into a fibrous batting provides mechanical integrity
Pores are 1/10,000Pores are 1/10,000thth
the diameter of athe diameter of a human hairhuman hair
Aerogels are often Aerogels are often called “frozen smoke”called “frozen smoke”
Aerogel’s Have the Lowest k-Value of Any Industrial Insulation
50
100
150
200
-200 -100 0 100
200 300 400
500
600
Temperature (°C)
Th
ermal C
on
du
ctivity (mW
/m-K
)Pyrogel XT
Perlite
Mineral WoolPipe & Board
Calsil
Cryogel Z PUR/PIR
Mineral WoolBlanket
-400 -200 0 200 400 600 800 1000 1200
Temperature (°F)
Th
erm
al C
on
du
ctiv
ity
(Btu
-in
/hr-
ft2 -
°F)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Cellularglass
Resists the Enemies of Traditional InsulationWater, Heat, and Abuse
Water RepellantAerogel's are hydrophobic, they will not wick or
allow water to pass through itDamage Tolerant
Cryogel and Pyrogel easily withstand most impact or compressive loading events (e.g.,
footfalls, tool strike), and will spring back to the original performance even at loads
> 100 psi. Further, because there is no brittle failure mechanism (its a flexible blanket), damage
remains local and will not propagate.
Thermally Stable Aerogel’s products do not use organic
binders, so will not crumble or sag in hot
service.
Heath and Safety Aspects of Aerogel Insulation
• Aerogels are an amorphous (non-crystalline) silica with 97% of particles larger than 45m
• Only the pores are nano-scale (~0.01 m)• Aerogel particles are much larger
• Amorphous silica has been studied by OSHA, EPA, and the OECD, concluding:
• “Demonstrated lack of toxicity.• “Is not expected to pose a carcinogenic risk.”• “Silica’s are inert when ingested, and unlikely to be absorbed
through the skin.”• “No concerns for human health.”
• Typical dust loading in fab-shop is <5 mg/m3
• OSHA limit for amorphous silica is 80 mg/m3
Aerogel (amorphous silica)
Crystalline silica
Accessories
• Unitherm offers a complete line of accessories including• End Seal Kits• Splice Kits• Patch Kits• Fitting Kits
Splice Kit
Fitting Cover Kits
End Seal Kit