Design:

Before design, we must first fully understand the valve where the process conditions of the process system, including: the type of media (gas, liquid, solid-phase and two-phase or multi-phase mixing, etc.), media temperature, media pressure, media flow rate (or flow rate), power sources and their parameters.

Application:

Butterfly valve is suitable for conveying water, oil, gas, water and solid two-phase and gas-solid two-phase flow of a variety of media pipeline system for switching or regulating device, so the butterfly valve sealing vice sensitivity to the medium is also one of the important factors to be considered in the design, the design of the main from the choice of materials and structural forms to consider.

For example, for the medium containing high dust cut off butterfly valve, it is necessary to choose the elastic rubber material for sealing ring, or the use of self-cleaning structure of the multi-level metal hard sealing ring, in the sealing vice relative movement at the same time by the sealing vice itself to remove particles and other dirt, or the use of blowing, cleaning function to reduce the dust on the sealing vice of the pollution.

Drawing:

Picture: