Double flanged double eccentric butterfly valves are used in a wide area from pump stations to irrigation lines, from transmission lines to treatment plants, from ponds and dams to hydroelectric power plants.
Butterfly valves are on-off valves. Half-open or half-closed disc positions to control flow cause cavitation.
Double flanged double eccentric butterfly valves are controlled by gearbox and flywheel, electric actuator, pneumatic actuator. They have low operating torques.