Lugged and Tapped Butterfly Valve with Aluminium Bronze Disc and NBR (Buna) Liner

This lugged and tapped butterfly valve is built for reliable flow control in demanding industrial environments. Designed with a rugged epoxy-coated ductile iron body, an aluminium bronze disc, and an NBR (Buna N) liner, it delivers durability, corrosion resistance, and a consistent seal across a wide range of fluid applications. Its lugged design allows easy installation and maintenance, making it ideal for water treatment, HVAC, and general process systems.

Technical Data

Body Material: Epoxy-coated ductile iron, offering strength, corrosion protection, and long service life.
Disc Material: Aluminium bronze, providing high resistance to wear and corrosion while maintaining strength in moving components.
Liner/Seat Material: NBR (Buna N) elastomer, ensuring a tight, flexible seal suitable for water, oils, and many neutral or mild industrial fluids.
Mounting / End Connections: Lugged and tapped configuration allows secure mounting between flanges and one-sided removal during maintenance. Includes ISO 5211 top pad for direct actuator or gearbox mounting. 1½ to 6 to fit PN10/16 Flanges. 8 to 24 to fit PN16 Flanges.
Pressure Rating:

• PN16 for sizes 1½ to 12
• PN10 for sizes 14 to 24
  Temperature Range: 10 °C to +80 °C, suitable for most general-purpose and moderate-temperature applications.
  Size Range: Available from 1½ up to 24.
  Compliance: Conforms to PED Directive 97/23/EC for pressure equipment.
  Product Code / MPN: V992509 (Brandoni).

Why Its a Smart Selection

Durable construction: The ductile iron body and aluminium bronze disc provide excellent strength and corrosion resistance, ensuring dependable performance over years of operation.
Reliable sealing: The NBR liner maintains a consistent seal under pressure and temperature variations, helping to reduce maintenance and downtime.
Easy installation: The lugged and tapped design allows the valve to be mounted between flanges without through-bolting, making it simple to isolate sections of pipe for service.
Automation ready: The ISO 5211 mounting pad allows for quick integration with electric or pneumatic actuators, making automation upgrades effortless.
Versatile application: With moderate pressure and temperature ratings, it suits a wide range of industrial, water service, and HVAC systems.

Installation and Application Tips

• Verify flange compatibility before installation; ensure bolt-hole patterns match and proper gaskets are used.
• Apply even bolt torque to maintain alignment and achieve a reliable seal.
• Confirm that the NBR liner is compatible with your fluid, ideal for water and mild oils but not recommended for strong solvents or high-temperature media.
• Support the piping adequately to avoid excessive load on the valve body.
• When automating, ensure actuator torque matches the valves operating requirements.
• Inspect periodically for liner wear or corrosion to maintain optimal sealing performance.

The Lugged and Tapped Butterfly Valve with Aluminium Bronze Disc and NBR Liner is a robust, adaptable solution for flow control in industrial piping systems. Combining corrosion resistance, easy maintenance, and reliable operation, its a cost-effective choice for engineers who value performance and long-term dependability.