In which equipment are heated hoses most common?
Electrically heated hoses are often used in extruders, Hot Melt machines, wrap-around machines, edge banders, as well as flue gas analysers.
Can a heated hose be used in potentially explosive atmosphere?
Only specially designed heated hoses with heaters and sensors in "Ex" version can operate in explosive zones.
How to select a heated hose?
A heated hose is selected individually for each specific application. Therefore, in order to make the right selection, it is necessary to provide information about the medium, working pressure, temperature to be maintained, movements performed, supply voltage, required temperature sensor, and hose parameters such as diameter, length, and type of fittings.
Does the maximum working pressure of heated hoses change with temperature?
Yes. Each heated hose, depending on the material it is made of, has pressure correction factors that must be taken into account in the calculations. For example, a PTFE hose with a diameter of 8 mm, which has a maximum working pressure of 200 bar at room temperature, will operate at a maximum of 166 [...]
Which temperature sensors are most popular in electrically heated hoses?
PT100 sensors are most common in heated hoses. In plastics processing, J-type thermocouples (Fe-CuNi) are also popular, sometimes K-type thermocouples (NiCr-Ni). NI120 sensors are often used in Hot Melt systems.
