Double Flange Concentric Butterfly valves

General Applications:
  • Shipside valves, ballast valves, water works, power plants, etc all piping system.
  • Both ends with complete flange.
  • Suitable to general pipe flange.
  • Suitable for shipside valve in the ship.
  • Heavy weight.
  • Same installation as ordinary valve.

Symmetric disc design ensures favorable flow characteristics and low pressure drop

Concentric shaft ensures low operating torque

Lining gives a good protection to valve body, and acts as flange gasket

  • Shaft penetrates the valve seat
  • Limited choice of seating materials(Elastomer, only)

Suitable for installation in Low Pressure System

Not suitable where FIRE-SAFE or FIRE-PROOF requirement apply to the valve or valve installation method