TubesTemperature Dependence of Tube Burst Pressure
Tube operating pressure is determined based on the 23℃ burst pressure (shown in the tube catalog) and the tube’s dependence on temperature. First, find the burst pressure at an operating temperature on a correction coefficient graph, then multiply the safety factor to calculate the maximum operating pressure.
[Burst pressure at operating temperature] = [Burst pressure at 23℃] x [Correction coefficient at operating temperature]
When determining the maximum operating pressure, adopt a pressure 1/4 or lower than the burst pressure at the operating temperature when using a gas, or 1/6 or lower when using a liquid. (Adopt a pressure 1/8 or lower for polyurethane tubing).
Figure 2-2-1 Burst pressure correction coefficient by temperature
for Junkosha Fluid Transfer Tubing: fluoropolymer tubing
for Junkosha Fluid Transfer Tubing: fluoropolymer tubing
Figure 2-2-2 Burst pressure correction coefficient by temperature
for Junkosha Fluid Transfer Tubing: nylon tubing
for Junkosha Fluid Transfer Tubing: nylon tubing
Figure 2-2-3 Burst pressure correction coefficient by temperature
for Junkosha Fluid Transfer Tubing: polyurethane tubing
for Junkosha Fluid Transfer Tubing: polyurethane tubing