On September 18, 2018, BUGET cooperated with the Gas Group to organize an expert evaluation meeting on "New Dadonglu Natural Gas Project". After discussion by the expert group, it was verified that the plan was approved.

The project is the first underground pressure regulation device (Q=50, 000 cubic meters / hour) in Beijing. It is located in block A 3-2-1 of Pearl River Investment and Development Company, Jinqiao Science and Technology Industrial Base in Tongzhou District. The pressure regulating device supplies gas to the boiler room (140T/h) and the surrounding area in the block; The new medium pressure A natural gas pipeline is connected with the DN400 medium pressure a natural gas pipeline on the south side of the boiler room (Mazuqiao secondary high pressure a box (30 000 m3/h), which can be used as a supplementary gas source in this area. 

In this scheme, the sub-high pressure regulating device covers an area of 41.02 square meters, and the sub-high pressure A regulating station is equipped with A pressure regulator of 50,000 cubic meters for the next high pressure medium pressure. Filtration, measurement and pressure regulation in the process flow are all directly buried underground. The scheme is safe in nature and reliable in technology. It reduces land use, reduces noise and improves the environmental affinity.