Differential pressure/pressure transmitter mounting device

The utility model relates to the technical field of differential pressure/pressure transmitter installation, and provides a differential pressure/pressure transmitter installation device which comprises a Y-shaped stop valve and an installation pipe. A medium inlet end and a medium outlet end of the valve body respectively form a first flange plate and a second flange plate; the first flange plate and the third flange plate are fixedly connected, and a sealing ring is fixed to the inner wall of the tail end of the mounting pipe; a valve head is arranged at the tail end of the valve rod, the valve rod, the medium inflow hole and the installation pipe are coaxial, the end face of the head end of the valve head is round, and the diameter of the head end of the valve head is larger than the inner diameter of the sealing ring. According to the utility model, the scabs at the liquid level measurement part in the liquid storage container can be removed through a simple structure and convenient operation, and meanwhi