Double-walled Heat Preservation Metal Hose

Nominal Diameter: 10?5mm-300?00mm
Working Temperature: 
Working Pressure: 0.6 Mpa-4.0Mpa
Characteristics:
a. two different kinds of fluid substance can flow separately in inner and outer tubes.
b. To keep warm or cool the medium in the inner tube with the steam or cooling water through the outer tube.
c. This kind can be design and manufacture according to customers' practical uses.