Overview
A Double Flanged Butterfly Valve is a resilient, high-performance valve used to control or shut off flow within pipelines. The double flange design ensures secure bolted connections directly between pipeline flanges, providing leak-proof sealing and ease of installation. Its advanced design minimizes friction, reduces torque, and offers reliable operation in demanding industrial environments.

Key Features

• Construction: Typically made from high-grade materials such as ductile iron, stainless steel, or cast steel, with options for various seat and disc materials (EPDM, Viton, PTFE) to handle different media.
• Design: The double offset or double eccentric design reduces contact between seat and disc during operation, decreasing wear and extending service life.
• Sealing: Achieves bubble-tight sealing through a soft or metal seat, suitable for high-pressure and high-temperature services.
• Actuation: Compatible with manual gear operators, pneumatic, electric, or hydraulic actuators for automated control.
• Pressure & Size Range: Commonly available from DN50 to DN600, with pressure ratings ranging from PN10 to PN25 or higher, depending on application.
• Standards: Conforms to API 609, ISO 5752, BS EN 593, and other international standards.
• Applications: Used in water treatment, chemical processing, power plants, HVAC, and oil & gas industries.

Advantages

• Reliable, leak-proof shutoff and flow regulation
• Easy to install and maintain due to flange connections
• Low torque operation enhances longevity of the actuator and valve components
• Suitable for large pipeline diameters and high-pressure conditions

This type of valve is ideal for applications where heavy-duty sealing, durability, and ease of maintenance are essential.