Materials: Main body: aluminum alloy Sealing:fluorid rubber, acrylonitrile-butadiene rubber This Valve is installed on the fuel conveying hose,will separate under cetain tensile strenght. Two valve will be in position automatically to switch off fuel flow, limit fuel leakage and protect refueling devices, under normal operation, the L88V3/4" valve shall be installed on the hose with a stretched ...