The double eccentric butterfly valve is suitable for various pipelines of Class150, DN100～DN1200, used to cut off or connect the medium in the pipeline. Selecting different materials, the double eccentric butterfly valve of Xianwo Technology can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media. The driving mode of the double eccentric butterfly valve is manual, worm gear transmission, pneumatic or electric. Double eccentric butterfly valve generally adopts flange connection, but also can adopt butt welding connection.

The telescopic butterfly valve is suitable for various pipelines of Class150, PN6～PN16, and is used to cut off or connect the medium in the pipeline. Selecting different materials, the telescopic butterfly valve of Xianwo Technology can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media. The driving mode of the telescopic butterfly valve is manual, worm gear transmission, pneumatic or electric. Telescopic butterfly valves generally adopt flange connection, but also can adopt butt welding connection.

Ventilation butterfly valve is suitable for various pipelines of Class150～Class1500, PN16～PN160, used to cut off or connect the medium in the pipeline. Choose different materials, the ventilation butterfly valve of Xianwo Technology can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and so on. The driving mode of the ventilation butterfly valve is manual, worm gear, pneumatic or electric. Ventilation butterfly valves generally adopt flange connection, but also can adopt butt welding connection.


The relationship between the opening degree of the ventilation butterfly valve and the flow rate basically changes linearly. If the ventilation butterfly valve is used to control the flow, its flow characteristics are also closely related to the flow resistance of the piping. The ventilating butterfly valve is designed and manufactured by a new type of structure welded by a centerline disc plate and a short structure steel plate. It is compact in structure, light in weight, easy to install, small in flow resistance, large in flow, and easy to operate.

Wafer connection soft sealing butterfly valve is suitable for various pipelines of DN50～DN2000, PN6～PN16, used to cut off or connect the medium in the pipeline. Choosing different materials, Chaoda Group's wafer-connected soft-sealed butterfly valve can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media. The driving mode of the soft-sealed butterfly valve connected to the clamp is manual, worm gear, pneumatic or electric. Wafer connection soft sealing butterfly valve adopts a wafer connection.

The three-eccentric multi-level metal sealing butterfly valve is suitable for various pipelines from DN50 to DN2000 and PN6 to PN40 to cut off or connect the medium in the pipeline. Choose different materials, the triple eccentric multi-level metal sealing butterfly valve of Xianwo Technology can be used for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media. The driving mode of the triple eccentric multi-level metal seal butterfly valve is manual, worm gear, pneumatic or electric. Three eccentric multi-level metal sealing butterfly valves generally adopt flange connection, but also can adopt butt welding connection.

The three-eccentric multi-level metal sealing butterfly valve is suitable for various pipelines from DN50 to DN2000 and PN6 to PN40 to cut off or connect the medium in the pipeline. Choose different materials, the triple eccentric multi-level metal sealing butterfly valve of Xianwo Technology can be used for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media. The driving mode of the triple eccentric multi-level metal seal butterfly valve is manual, worm gear, pneumatic or electric. Three eccentric multi-level metal sealing butterfly valves generally adopt flange connection, but also can adopt butt welding connection.