The butterfly plate adopts a unique streamlined structural design, and the total thickness does not exceed 2 times the diameter of the valve stem. The butterfly plate has good strength under positive and negative pressure, and will not cause harmful permanent deformation and damage under 1.1 times the maximum allowable pressure difference. The large-diameter butterfly plate adopts a truss structure and has high fluid dynamics characteristics and low flow resistance coefficient.

The connection design between the valve stem and the butterfly plate adopts an eccentric pin structure. The eccentric pin structure improves the stress condition of the connecting pin, greatly improves the shear resistance of the pin shaft, and calculates and checks the load when opening and closing under 1.5 times the maximum pressure difference to ensure that the diameter and number of the pin shaft connecting the butterfly plate and the valve stem meet the transmission requirements.

The valve can realize bidirectional pressure bearing without medium flow direction requirements, and the positive and negative pressure bearing capacity can reach 1:1, which increases the application range of the valve.

When the valve is used in underground pipeline systems such as direct burial and valve wells, the valve operation platform interface can be heightened according to different customer needs.