butterfly valve / with handwheel / shut-off / regulating
BDK™ M44, 44L Weir Power & Industrial



  • Type:


  • Operation:

    with handwheel

  • Function:

    shut-off, regulating

  • Body:


  • Applications:

    for the chemical industry, for process applications, for water systems

  • Other characteristics:

    high-performance, bidirectional

  • Temperature:

    Max.: 150 °C (302 °F)

    Min.: -30 °C (-22 °F)

  • Pressure:

    16 bar (232.1 psi)

  • DN:

    Max.: 600 mm

    Min.: 350 mm


BDK™ Butterfly valves are resilient, cost-effective designs for high performance regulation and control applications in water treatment, desalination, power, steel, chemical and process plants.

BDK™ Butterfly valves are light weight, and come with bubble tight shut off design. Effective on-off and throttling service, it has replaceable seat with longer seat life. These are easy to install valves, with virtually zero maintenance.

Key beneftis

Smaller face to face dimensions (Short Pattern) – hence, cost effective
Resilient seats for bubble tight shutoff & field replaceable
On-off and throttling service
Disc wiping action, no body cavity
Quick opening by quarter turn operation
Moderate torque, easy for automation
Least installation space
Low pressure drop

Ends: Wafer & Lugged