Underground fuel tank filling system - has gas discharge branch in addition to fuel filling branch

摘要

The filling system for underground tanks in a fuel filling station has one or more filler branches (3). A gas discharge branch (3a) is also included, pref fitted with a length of hose (3b). The two branches can be housed in a cubicle above ground. Both can be bent forwards to aid coupling up of the hoses, and trough, which can be pulled out, can be accommodated under the filler branch. ADVANTAGE - Car atmospheric pollution, due to gas feedback into the tank.