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★ Export more than 60 countries, widely used in power stations, thermal power station, water works, water works, sewage disposal plants, iron and steel companies and other industries.
Application:
This double-rocker butterfly valve is used as closing equipment in pipeline of gas media such as air, combustible gas, etc. And applied to industrical dust ventilating and environmental protection of metallurgy, cement, chemical industry power station, etc.
Features:
This double-rocker butterfly valve invoves the good features of both butterfly valve and gate valve. It is ideal equipment to break smoke, air and other gas media in the pipeline.
Shaft drives disc through double-rocker (also called four link) mechanism. Thus during disc is moving, there is no friction premely between sealing surface and seat of the valve and the valve belongs to plane seal with reliable sealing performance and long sevice life and used as open-close equipment.
Structure diagram:
Nominal diameter（mm）：DN200～DN5000
Nominal Pressure（Mpa）：0.01～0.25MPA
Suitable temperature：≤450℃
Suitable medium: smoke, air, gas, natural gas, etc.
Type of sealing : soft sealing, hard sealing.
Type of control : manual, electric, pneumatic, hydraulic, etc.
Material of main part: alloy cast iron, carbon steel, stainless steel, etc.
Standard: GB, BS, ASME, JIS, DIN, EN, ISO and other country, also can be produced according to user’s requirements.
