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There are two types of this valve, round and square.
(Ventilating louver type butterfly valve)
Application:
This series of valves applies in the pipe network which media are smoke, air, etc as flow regulating equipments.
Features:
Through link mechanism, electric actuator drives each shaft and louver disk, the sealing components have no friction, so the operating torque is small and easy to control. The valve can be used as open-close and regulating equipment.
The valve is non-seal butterfly valve, thus no sealing test is needed.
Structure diagram:
Nominal diameter（mm）：DN200～DN5000, 100*100～3000*3000
Nominal pressure（Ｍpa）：0.01～0.25MPA
Suitable temperature：≤450℃
Suitable medium: Water, sea water, sewage, etc.
Type of sealing : soft sealing and hard sealing.
Type of control : electric, hydraulic.
Material:grey cast iron, ductile cast iron, alloy cast iron, carbon steel ,stainless steel.
Standard: GB, BS, ASME, JIS, DIN, EN, ISO and other country, also can be produced according to user’s requirements.
