Cast Steel Pneumatic Triple-Eccentric Hard-Seal Butterfly Valve D643H-16C

Product Description

The D643H/W Pneumatic Triple-Eccentric Hard-Seal Butterfly Valve consists of a pneumatic actuator and a triple-offset hard-seal butterfly valve. This valve features bidirectional sealing, requires low opening torque, and is flexible, convenient, and energy-efficient. Its three-dimensional offset structure ensures that the disc tightens further as it closes, providing reliable sealing performance and achieving a leak-free seal; There is virtually no friction between the disc and the seat during opening and closing, which reduces wear on the seat sealing surface and extends the service life of the butterfly valve. The seat seal employs a metal hard-seal structure, offering significantly higher temperature resistance than soft-seal butterfly valves and making it suitable for high-temperature media. The pneumatic actuator drives the butterfly valve to open and close rapidly, making it suitable for quick shut-off. It is equipped with a solenoid valve and limit switch accessories for convenient remote control. An electric valve positioner must be installed when proportional control is required.

Product Features

1. The butterfly valve features a triple-offset design, which minimizes wear on the sealing surfaces during opening and closing and ensures a long service life.
2. Metal hard-seal construction, suitable for high-temperature media.
3. Increasing the applied torque can improve sealing performance, effectively ensuring that the medium remains sealed.
4. Pneumatic actuators operate at high speeds and can be used for rapid shut-off.
5. Can be equipped with solenoid valves and limit switches for convenient remote automatic control.
6. Large-size butterfly valves feature a truss structure, offering high strength, a large flow area, and low flow resistance.
7. The triple-offset hard-seal butterfly valve is resistant to high and low temperatures as well as corrosion.

Applications

Widely used in industrial piping systems in the metallurgy, power, petrochemical, water supply and drainage, and municipal construction sectors to regulate flow and control the flow of fluids.

Product Specifications

Product Size Guide