Product Overview

K-FLEX
®
} K-FIT
®
www.kexusa.com
© K-FLEX
®
. US_LEA_K-FIT_V1_1119; K-FLEX
®
reserves the right to change data and technical requirements without notice.
K-FLEX
®
K-FIT
®
` TECHNICAL DATA

Physical properties
 
K-FIT
®
 
Test methods

Main Composition Flame-retarded NBR/PVC-based elastomeric foam
Thermal Conductivity (K)
Btu-in/hr-Ft
2
-°F (W/mK)
90°F (32°C) Mean Temp = 0.258 (0.0372)
75°F (24°C) Mean Temp = 0.245 (0.0353)
32°F (0°C) Mean Temp = 0.235 (0.0339)
ASTM C177
Density 3-6 lb/ft
3
ASTM D1667
Operating Temperature Range -297°F* (-183°C) to +220°F (104°C) ASTM C534
Water Vapor Permeability (Dry Cup) <0.01 perm-in ASTM E96
Water Absorption (Volume Change) 0% ASTM C209
Flame Spread / Smoke Development (up to 2” wall) <25/50 ASTM E84
Flammability Self-Extinguishing ASTM D635
Dimensional Stability <7% Linear Shrinkage ASTM C534
Hot Surface Performance (250°F for 96 hours) No Cracking or Delamination ASTM C411
Ozone Resistance Pass ASTM D1171
Odor Emissions No Objectionable Odor ASTM C1304
Chemical/Solvent/Oil/Grease Resistance Good Compatibility Data Available on Request
Flexibility
Excellent
Pass: Cold Crack Test at -40°F (-40°C)
ASTM C534
ASTM D1056
Mildew Growth Resistance/Air Erosion Pass UL 181, ASTM G21
Corrosion Risk pH neutral: 6.6±0.04 DIN 1988
Leachable Chlorides <0.05% water-soluble chloride ions DIN 1988
UV / Weather Resistance
1
Pass QUV Chamber Test
Sound Transmission Class (1”) 13 ASTM E90
Technical Data based on K-FLEX
®
black NBR/PVC-based elastomeric insulation. For technical information for K-FIT
®
White and K-FIT
®
ECO, please see respective product sheets.
*For applications below -40°F (-40°C), contact K-FLEX
®
technical support.
1
Outdoor applications should be protected with an approved K-FLEX
®
coating or cladding.
K-FLEX
®
K-FIT
®
` PIPE “R” VALUES PER SQUARE FOOT (ALL SIZES ARE NOMINAL)
Nominal

insulation I.D.
 
1/2” WALL
 
3/4” WALL
 
1” WALL
 
1-1/2” WALL
 
2” WALL

3/8” 3.6 5.6 8.5 14.6 20.4
1/2” 3.4 5.4 7.9 13.5 18.9
5/8” 3.3 5.4 7.5 12.8 17.8
3/4” 3.1 5.4 7.5 12.4 16.8
7/8” 3.2 5.4 7.2 11.6 16.1
1-1/8” 3.1 5.5 7.1 10.8 15.8
1-3/8” 3.2 5.3 7.3 10.2 14.9
1-5/8” 3.1 5.1 7.1 9.8 14.6
1-1/2” IPS 2.6 4.4 6.2 8.9 13.8
2-1/8” 3.0 4.9 6.6 9.2 13.6
2” IPS 2.9 4.8 6.5 9.0 13.3
2-1/2” IPS 3.0 4.6 6.3 8.6 12.6
2-5/8” 3.1 4.7 6.4 8.8 12.9
3-1/8” 3.0 4.6 6.2 8.5 12.4
3” IPS 3.2 4.6 6.1 8.3 12.2
3-5/8” 3.2 4.6 6.1 8.3 12.1
4-1/8” 3.1 4.6 6.0 8.1 11.7
4” IPS 3.2 4.6 5.5 8.0 11.6
5” IPS 3.0 4.5 5.7 7.7 11.1
6” IPS 3.0 4.4 5.6 7.5 10.9
K-FLEX
®
K-FIT
®
` THICKNESS RECOMMENDATIONS - TO PREVENT CONDENSATION
SERVICE
TEMPERATURE
50°F (10°C) 35°F (2°C) 0°F (-18°C) -20°F (-29°C)

Pipe Size
 
Mild
 
Normal
 
Severe
 
Mild
 
Normal
 
Severe
 
Mild
 
Normal
 
Severe
 
Mild
 
Normal
 
Severe

3/8” ID to 1-1/8” ID 3/8” 3/8” 3/4” 3/8” 1/2” 3/4” 1/2” 3/4” 1-1/2” 1/2” 1” 1-1/2”
1-3/8” ID to 3” IPS 3/8” 3/8” 3/4” 3/8” 3/4” 1” 1/2” 1” 1-1/2” 3/4” 1-1/2” 1-1/2”
4” IPS to 6” IPS 1/2” 1/2” 3/4” 1/2” 3/4” 1” 3/4” 1” 2” 3/4” 1-1/2” 2”
Thickness listed for the specied ranges will prevent condensation on indoor piping under the dened design conditions. Normal: 85°F and 70% R.H. Mild: Most air conditioned spaces and arid climates: 80°F and 50% R.H. Severe: Areas where
excessive moisture is introduced or in poorly ventilated areas where the temperature may be depressed below the ambient: 90°F and 80% R.H. Contact K-FLEX
®
technical support for additional information.
K-FLEX USA LLC
100 K-FLEX Way, Youngsville, NC 27596
Phone: [phone]
[e-mail]