The issue is the building project of natural gas measuring reduction station with capacity of: Q=30000 Nm³/h together with inlet shut-off system Dn300 and inlet shut- off system Dn400. The main objective of natural gas measuring reduction station is gas pressure reduction from 0,8 MPa to 0,4 MPa. At the station inlet we designed underground shut- off system of nominal diameter DN300. The second objective of the system is total gas shutdown in case of accident or planned renovation. The system enables venting or degassing parts of gas line at both sides of the gas valve.