320 gas stations in Beijing installed a gas recycle pipe, which is to connect to the gas tank, to prevent the gas evaporation while instilling the gasoline from the tank truck to the underground storage. In Beijing, the annual gasoline consumption totals 2 million tons with evaporation of 5.3%. Evaporation and leaking from the gas station make up more than 1000 tons. This recycling device may recycle 90% of the gas or gasoline that otherwise be wasted.