Vacuum butterfly valves, used for regulating or shutting off the flow of gas media, are primarily applied in ventilation and environmental protection pipeline systems across industries such as chemical, building materials, metallurgy, and power.
Furthermore, due to their compact structure and reliable sealing, vacuum butterfly valves are used in the chemical and pharmaceutical industries for controlling corrosive media in processes such as vacuum distillation and drying; in the electronics and semiconductor industries for processes requiring high vacuum levels, such as vacuum coating and etching; in research and laboratories for controlling the on/off or flow of experimental systems; and in the food processing industry for processes such as vacuum packaging and drying. Their stainless steel construction meets hygiene requirements.
The applicable media are pure air and non-corrosive gases. Some models are available with optional feedback signal devices.