A Bray Bronze Double Offset Butterfly Valve is a high-performance valve designed for industrial applications requiring tight shutoff, reduced wear, and durability. The double offset design minimises friction between the disc and seat, extending its lifespan.

The double offset design reduces seat wear, improves sealing performance, and provides lower torque operation, making it ideal for demanding applications like marine, oil & gas, and chemical processing.

These valves typically feature a bronze body with options for a variety of disc and seat materials, ensuring excellent corrosion resistance and durability in harsh environments.

This valve is commonly used in marine applications, oil & gas, power generation, chemical processing, and water treatment plants due to its high resistance to corrosion and extreme temperatures.

Bray offers a wide range of sizes, typically from 2” to 48” (DN50 to DN1200), catering to different flow control requirements in various industries.

It can be operated manually using a lever or gearbox and is also compatible with pneumatic, electric, or hydraulic actuators for automated control.

Yes, many models comply with API 607 and ISO 10497 fire-safe standards, ensuring continued operation and tight shutoff in high-temperature conditions.

Typical pressure ratings range from 150 to 600 PSI (PN10 to PN40), depending on the model and application requirements.

With the right seat material, this valve can handle temperatures ranging from -50°C to +250°C (-58°F to 482°F), making it suitable for extreme conditions.

Integrated into the top flange, this design maintains an uninterrupted bore, improving flow efficiency while minimising turbulence. Its reinforced structure offers greater resistance to shear forces, outperforming conventional pinned designs.

The high-strength, one-piece stem prevents blowout, ensuring maximum safety and extending the operational lifespan of the valve.

A fully adjustable, live-loaded sealing system meets international fugitive emission standards, offering a reliable and environmentally compliant sealing solution.

O-ring seals positioned within the top flange and travel stop act as a barrier against external contaminants, preserving the integrity of the packing area.

The energised resilient seat delivers zero-leakage bidirectional sealing while remaining isolated from the line media, enhancing durability and efficiency.

Designed for optimal bidirectional sealing, this feature ensures reliable performance across a broad range of pressures, from low to high.

The double offset stem and disc reduce seat wear, lower torque demands, and contribute to a longer service life, making operation more efficient

A continuous sealing surface between mating flanges ensures a secure, high-integrity seal, improving overall system reliability.

Top and bottom bearings provide firm stem support, minimise deflection, and resist corrosion, ensuring smooth and stable valve operation.

A double offset butterfly valve has two offsets from the centerline of the disc and seat. This design reduces friction, increases durability, and improves sealing performance compared to a concentric butterfly valve.

Bray’s double offset butterfly valves feature high-performance seating technology, precision engineering, and low-friction operation, ensuring a longer lifespan and superior performance in demanding applications.

Double offset butterfly valves offer low operating torque, bubble-tight sealing, and longer service life due to reduced wear on the seat. They are also lightweight compared to other industrial valve types, making them easier to install.

These valves are widely used in industries such as water treatment, power plants, oil and gas, chemical processing, and marine applications due to their high-performance sealing and ability to handle high-pressure systems.

The dual-offset design moves the disc away from the seat during operation, minimising seat wear and providing a tighter, more reliable seal even in demanding applications.

Bray valves are available through authorized distributors and suppliers, including specialised valve and automation companies that offer expert selection and support for your application needs.

Common materials include stainless steel, carbon steel, ductile iron, and exotic alloys such as super duplex and bronze, depending on the application and media being controlled.

Yes! Bray’s valves are designed for seamless integration with Bray pneumatic and electric actuators, making them ideal for automated flow control systems.

They can be operated manually via a gearbox, or automated using pneumatic, electric, or hydraulic actuators for remote control and process automation.

Bray offers resilient-seated and metal-seated options, catering to both soft-sealing and high-temperature applications where metal-to-metal sealing is required.

Double offset valves are ideal for general industrial applications where tight sealing is needed, while triple offset valves are designed for extreme high-pressure and high-temperature conditions, offering zero leakage metal-to-metal sealing.

Most double offset butterfly valves are rated for PN10 to PN40 or Class 150 to 300, making them suitable for moderate to high-pressure applications.