Page 360 - BOLA Catalogue

Tubing - Pressure Resistance PTFE Tubing
The graph on the right side will help you to determine the recommended working pressure (approx. 0.25 x short time burst pressure) for PTFE tubing. For working temperatures above +20 °C the working pressures stated in this graph have to be multiplied by the corresponding reduction factor. For temperatures below +20 °C no reduction factors have to be considered.
Example:
For PTFE tubing with inner diameter of 6 mm and a wall thickness of
1 mm the working pressure at +20 °C is about 8.8 bar. At a temperature of +50 °C, this value has to be reduced to 7.6 bar (pressure 8.8 bar x reduction factor 0.87 = 7.65 bar).
bar
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PTFE maximum working pressure at 20 °C
Wall Tickness:
2,00 mm 1,50 mm 1,00 mm 0,75 mm 0,50 mm 0,20 mm
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TECHNICAL INFORMATION
Temperature °C Reduction Factor
50 75 100 0,87 0,77 0,68
150 200 0,53 0,39
250 0,28
FEP Tubing
The graph on the right side will help you to determine the recommended
working pressure (approx. 0.25 x short time burst pressure) for FEP tubing. For working temperatures from -50 °C to +150 °C the working pressures stated in this graph have to be multiplied by the corresponding reduction factor.
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bar
Inner diameter in mm
FEP maximum working pressure at 20 °C
Wall Tickness:
2,00 mm 1,50 mm 1,00 mm 0,50 mm
0
2 4 6 8 10 12 14 16 18 20
Example:
For FEP tubing with inner diameter of 6 mm and a wall thickness of
1 mm the working pressure at +20 °C is about 7.8 bar. At a temperature of +50 °C, this value has to be reduced to 6.1 bar (pressure 7.8 bar x reduction factor 0.78 = 6.1 bar).
Temperature°C -50 0 20 50 100 150
0
1 2 3 4 5 6 7 8 9 10
Reduction Factor
1,13 1,04
1,00 0,78
0,45 0,21
Inner diameter in mm
PFA
maximum working pressure at 20 °C Wall Tickness: 0,50 mm
1,00 mm
PFA Tubing
The graph on the right side will help you to determine the recommended
working pressure (approx. 0.25 x short time burst pressure) for PFA tubing. For working temperatures above +20 °C the working pressures stated in this graph have to be multiplied by the corresponding reduction factor. For temperatures below +20 °C no reduction factors have to be considered.
Example:
For PFA tubing with inner diameter of 6 mm and a wall thickness of
1 mm the working pressure at +20 °C is about 14 bar. At a temperature of +50 °C, this value has to be reduced to 12 bar (pressure 14 bar x reduction factor 0.86 = 12 bar).
bar
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Temperature °C 50 Reduction Factor 0,86
100 0,50
200 0,26
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Inner diameter in mm
By the way: BOLA offers custom manufacture. From 1 piece. Hotline +49 (0) 93 46-92 86-0
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