Lug Style Butterfly Valve – Overview The Lug style butterfly valve has all-plastic housing which combines quality and durability. Through the use of fibreglass-reinforced polypropylene, the valve’s weight is greatly reduced. This simplifies not only the installation of the valve but also saves on the storage cost. The valve can be used reliably in highly corrosive applications and is excellent for use with aggressive media. The system allows the exchange of individual system components at any time – quickly and easily, without much effort. Since the actuation torque is strongly dependent on the internal pressure, type 578 is optimally designed in this area. The maximum nominal pressure is 10 bar on both sides at 20 °C. A further benefit of this is the long life span since the valve is less exposed to wear and tear. Lug Style Butterfly Valve – Features Corrosion resistant Stable and Reliable Easy maintenance Long life span Minimal operation torque Can be fitted with an actuator (optional) Lever positioning clearly marked Can be used with electric position indicators (optional) Use as lugged valve with threaded bushes integrated into the housing Lower weight than metallic butterfly valves Low wear and tear: up to 50 % lower operating torque than centric valves Leak-tightness within and without: double, internal axis gasket on both sides Lockable hand lever
