Hard seal butterfly valve

Product Overview:

The Pneumatic Hard Seal Butterfly Valve is a high-performance valve designed for reliable operation in demanding industrial applications. It combines a robust metal-sealing structure with the precision and convenience of pneumatic actuation, making it ideal for applications requiring high-temperature and high-pressure resistance, along with tight shutoff capabilities.

This valve features a triple eccentric (three-offset) design, which ensures zero leakage and reduces wear on the sealing surface, extending the service life. The hard-sealing mechanism, typically made of stainless steel or alloy, provides excellent durability and corrosion resistance, even in aggressive media. Pneumatic actuators enable rapid and automated operation, making the valve suitable for processes that require precise flow control and automation.

Key Features:

Hard Seal Structure:The valve adopts a metal-to-metal sealing design that ensures excellent performance in high-temperature and high-pressure environments.
The triple eccentric structure minimizes friction between the disc and the seat during operation, reducing wear and ensuring tight sealing under extreme conditions.

Pneumatic Actuation:Equipped with a high-quality pneumatic actuator, the valve operates quickly and reliably, suitable for frequent opening and closing cycles.
The actuator supports multiple control modes, including on/off, modulating, and failsafe configurations (spring return or double acting).

Wide Range of Materials:Valve body and disc materials include carbon steel, stainless steel (304, 316, or 316L), and alloy steel, ensuring compatibility with various working conditions.Sealing materials can be customized, including Stellite, hard chromium plating, or nickel-based alloys, to meet specific application requirements.

High Durability:The valve’s hard seal design ensures resistance to wear and abrasion, even under challenging conditions such as high flow velocities or abrasive media.
The robust construction enhances longevity, reducing maintenance frequency and overall operational costs.

Compact and Versatile:The compact design and lightweight structure make it easier to install and integrate into existing piping systems.
Available in wafer, lug, and flanged connection types to accommodate diverse application needs.

Precise Flow Control:The combination of a hard seal and pneumatic actuation provides highly precise control over flow rates, enabling accurate regulation in critical industrial processes.

Advantages

High-Temperature and Pressure Resistance:With a metal-sealed structure, the valve can operate in temperatures up to 350°C and pressures up to PN40, making it suitable for high-demand applications.

Corrosion and Abrasion Resistance:The use of corrosion-resistant materials such as 316 stainless steel or hard-coated alloys ensures durability in harsh environments, including chemical and petrochemical industries.

Fast and Automated Operation:Pneumatic actuators enable quick opening and closing, significantly improving process efficiency in automated systems.
The failsafe design ensures reliable performance even in the event of power or signal loss.

Low Maintenance Requirements:The triple eccentric design minimizes wear and reduces the need for frequent maintenance, contributing to lower operating costs.

Versatility in Applications:Suitable for handling a wide variety of media, including steam, gas, oil, and corrosive chemicals, across industries such as power generation, metallurgy, petrochemicals, and water treatment.