Metal Corrugated Hose General Information
Use metal corrugated hose in high pressure applications, for everything from air and water to natural gas, and molten sulfur.
Corrugated metal hose consist from a metal strip that’s rolled and welded together, with corrugations with reason to increase exibility. The corrugations are available in annular or helical patterns. Annular corrugations are parallel and independent of one another.
They are more common than helical corrugations as they’re generally more exible. Helical patterns consist of a single corrugation that runs around the entire length of the hose, and better allow liquid to drain from the hose. Add single or double layer metal braids to the exterior of corrugated hose to increase the pressure rating which can exceed 3,000 PSI. Also use corrugated hoses in high pressure applications involving uids or gasses.
Temperature Adjustment Factors
In general, the strength and therefore the pressure rating of metal hose decreases as the temperature increases. Thus, as the operating temperature of a metal hose assembly increases,the maximum allowable working pressure of the assembly decreases.