The steel flange discharge hoses are used with dredgers for silt/gravels conveyance. The hose is often located in two steel pipes. The suitable conveyance matters are usually mud, clay, fine sand, fine-mid sand and so on. The suitable working temperature is from -20℃ to +50℃. Thickness if the pipe wall is from 15mm to 100mm. Features: it is convenient to install, flexible to use, safe, abrasion-resistant, bending –resistant and excellent prevent ageing performance.