Natural gas single stage regulator

The utility model belongs to the technical field of the supporting device of single current valve, a natural gas single stage regulator is disclosed for solve current pressure reducer because of utilizing outside hydrologic cycle to realize the problem that the structure is complicated of freeze proof existence. The utility model discloses a left side valve body, right valve body, left side valve body and right valve body form the body through heat absorbing plate connected together, the end connection of left side valve body has the air inlet cover who is used for with outside intake -tube connection, the end connection of right side valve body has and is used for giving vent to anger approximately with outside outlet duct is connected, the body endotheca be equipped with can be in the body gliding piston rod, the perforating hole has been seted up in the piston rod, be provided with the disk seat that is used for gas to pass through between air inlet cover and the left valve body, first cavity has between t