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PTFE Heat Shrink 2 to 1 Shrink Ratio
Approximate Ratio of Expanded ID to Recovery ID - Fractional Inch Sizes

 

STANDARD WALL (in)   STANDARD WALL (mm)
Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness
Nom. Tol. Nom. Tol.
1/8 0.215 0.130 0.020 ±.004 1/8 5.46 3.30 0.51 ±.10
1/4 0.410 0.260 0.020 ±.004 1/4 10.41 6.60 0.51 ±.10
5/16 0.470 0.329 0.020 ±.004 5/16 11.94 8.36 0.51 ±.10
3/8 0.560 0.399 0.025 ±.006 3/8 14.22 10.13 0.64 ±.15
7/16 0.655 0.462 0.025 ±.006 7/16 16.64 11.73 0.64 ±.15
1/2 0.750 0.524 0.025 ±.006 1/2 19.05 13.31 0.64 ±.15
5/8 0.930 0.655 0.030 ±.006 5/8 23.62 16.64 0.76 ±.15
3/4 1.125 0.786 0.035 ±.008 3/4 28.58 19.96 0.89 ±.20
7/8 1.310 0.911 0.035 ±.008 7/8 33.27 23.14 0.89 ±.20
1 1.500 1.036 0.035 ±.008 1 38.10 26.31 0.89 ±.20
 
THIN WALL (in)   THIN WALL (mm)
Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness
Nom. Tol. Nom. Tol.
1/8 0.215 0.130 0.015 ±.003 1/8 5.46 3.30 0.38 ±.08
1/4 0.410 0.260 0.015 ±.003 1/4 10.41 6.60 0.38 ±.08
5/16 0.470 0.329 0.015 ±.003 5/16 11.94 8.36 0.38 ±.08
3/8 0.560 0.399 0.015 ±.003 3/8 14.22 10.13 0.38 ±.08
7/16 0.655 0.462 0.018 ±.004 7/16 16.64 11.73 0.46 ±.10
1/2 0.750 0.524 0.018 ±.004 1/2 19.05 13.31 0.46 ±.10
5/8 0.930 0.655 0.020 ±.004 5/8 23.62 16.64 0.51 ±.10
3/4 1.125 0.786 0.025 ±.005 3/4 28.58 19.96 0.64 ±.13
7/8 1.310 0.911 0.030 ±.006 7/8 33.27 23.14 0.76 ±.15
1 1.500 1.036 0.030 ±.006 1 38.10 26.31 0.76 ±.15
 
INDUSTRIAL WALL (in)   INDUSTRIAL WALL (mm)
Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness
Nom. Tol. Nom. Tol.
1/8 0.166 0.130 0.030 ±.005 1/8 4.22 3.30 0.76 ±.13
3/16 0.250 0.193 0.030 ±.005 3/16 6.35 4.90 0.76 ±.13
1/4 0.333 0.257 0.030 ±.005 1/4 8.46 6.53 0.76 ±.13
5/16 0.415 0.320 0.030 ±.005 5/16 10.54 8.13 0.76 ±.13
3/8 0.498 0.383 0.030 ±.005 3/8 12.65 9.73 0.76 ±.13
7/16 0.580 0.448 0.030 ±.006 7/16 14.73 11.38 0.76 ±.15
1/2 0.666 0.510 0.030 ±.006 1/2 16.92 12.95 0.76 ±.15
9/16 0.748 0.572 0.030 ±.006 9/16 19.00 14.53 0.76 ±.15
5/8 0.830 0.637 0.030 ±.006 5/8 21.08 16.18 0.76 ±.15
11/16 0.915 0.700 0.032 ±.006 11/16 23.24 17.78 0.81 ±.15
3/4 1.000 0.764 0.040 ±.007 3/4 25.40 19.41 1.02 ±.18
7/8 1.170 0.891 0.045 ±.007 7/8 29.72 22.63 1.14 ±.18
1 1.330 1.020 0.050 ±.008 1 33.78 25.91 1.27 ±.20
 
LIGHTWEIGHT WALL (in)   LIGHTWEIGHT WALL (mm)
Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness Ordered as ID Expanded ID Min. Recovered ID Max Recovered Wall Thickness
Nom. Tol. Nom. Tol.
1/8 0.215 0.130 0.008 ±.002 1/8 5.46 3.30 0.20 ±.05
1/4 0.410 0.260 0.0010 ±.003 1/4 10.41 6.60 0.25 ±.07
5/16 0.046 0.329 0.0012 ±.003 5/16 11.94 8.36 0.30 ±.07

UL File # E64007 / CSA File # 082582

 

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