F43BX-(0.5,1.5,2.5) manual blind valve length structure F43BX manual valve long series of fan-shaped blind Overview: F43BX type manual fan-shaped blind valve structure for the long series, no expansion joints on the body, to compensate for the valve opening and closing process axial displacement of the valve element produced. This series of blind valve rubber seals were installed on the left and right body. DN900-1400 blind plate valve body using triangular structure, strong rigidity. Structural characteristics and uses: The valve DN300-800-type manual fan blind valve structure for the long series. The valve body has expansion joints on the right, are generally used for long pipelines. The expansion joints can compensate for axial displacement of the valve when the valve opening and closing the valve, reducing valve opening and closing torque (note: not as a pipeline compensator) of the valve DN900-1400 type manual valve as long fan Blind Structure Series. The valve has expansion joints for a longer pipeline (note: not as a pipeline compensator). According to the characteristics of large diameter valves, valve triangular structure designed to enhance the overall rigidity of the valve.