Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃, for regulating flow and breaking fluid. Normally material: cast iron, cast steel, stainless steel. If the stem axis deviates from the disc center and the body center at the same time, and the rotation axis of the valve seat has a certain angle with the channel axis of the valve body, it is called three eccentric butterfly valve
COVNA HK59-D-GF Pneumatic three eccentric butterfly valve, the valve body part adopts three eccentric structure, the valve plate and sealing mechanism are unique in design, with excellent cutting performance and durability, as well as dual functions of cutting and adjusting. It is small in size, light in weight, economical and practical, and easy to maintain; Low friction, high efficiency, high thrust and good safety; Simple, eye-catching, reliable and integrated travel indication, combined installation of limit switch and solenoid valve, no external pipeline, reducing leakage point; It can realize bidirectional sealing function, which can be adjusted and cut off
A variety of actuator forms are available for selection to meet the requirements of different users; The design of flexible and combined actuator (manual mechanism) can ensure the free installation and flexible control in all directions
Technical Parameters of Valve Actuator
Double acting
Air to open, air to close, air supplier failure to keep the current position
Single acting N/C
Air to open, interrupt air to close, air failure to close
Single acting N/O
Air to close, interrupt air to open, air failure to open
Optional accessory
Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.
Technical Parameters of Valve Body
Body
Valve components
Size range
DN50~DN400
Sealing material
Stainless steel
Body material
Stainless tseel
Core material
Stainless steel
End conection
Wafer, Flange
Stem material
Stainless steel
Operating pressure
1.0, 1.6MPa
Applicable media
Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
Structure
Midline Structure/ A-type
Company Certificates
Package & Shipping
Technical Parameters of Valve Actuator
Double acting
Air to open, air to close, air supplier failure to keep the current position
Single acting N/C
Air to open, interrupt air to close, air failure to close
Single acting N/O
Air to close, interrupt air to open, air failure to open
Optional accessory
Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.
Technical Parameters of Valve Body
Body
Valve components
Size range
DN50~DN400
Sealing material
Stainless steel
Body material
Stainless tseel
Core material
Stainless steel
End conection
Wafer, Flange
Stem material
Stainless steel
Operating pressure
1.0, 1.6MPa
Applicable media
Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
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