Breather hose for aqueous urea solution tank

摘要

A breather hose (1) for releasing pressure, the breather hose (1) being mounted to an aqueous urea solution tank (2), is formed in a divided manner by: a flexible joint section (1a) having one end which can be fitted onto a hose joint section (3) located at the upper part of the aqueous urea solution tank (2); and a vertical section (1b) connected to the other end of the joint section (1a) and extended vertically downward along a side surface of the aqueous urea solution tank (2). The joint section (1a) is formed from a rubber hose consisting of ethylene-propylene-diene terpolymer (EPDM), and the vertical section (1b) is formed from a polyethylene pipe (resin pipe) consisting of high-density polyethylene (HDPE).