GF Butterfly Valve Type 567/578

GF Butterfly Valve Type 567/578 are corrosion -resistant and reliable control and shut-off valves that can be used in most applications in industrial water treatment, the chemical process industry, chemical trade, galvanization and in power plants. The valves are intended for wafer style and lug style applications. They are compact, varied and reliable. The valve is modular in design, allowing individual system parts to be exchanged at any time. Function Butterfly valves of types 567 and 578 have a double-eccentric mode of action and are of modular construction. Double eccentric operating principle The disc does not touch the seal in the open position. The disc can be quickly unscrewed from the gasket, ensuring low wear and tear. Pressure surges in the direction of flow can be absorbed more readily. Use as a process and control valve The butterfly valves can be equipped with corresponding pneumatic or electrical actuators and used as process and regulating valves. With extensive accessories, such as the integrated electrical position indicator. This enables direct feedback of the axis position in the valve head flange by means of limit switches and thereby an exact determination of the position of the valve disc. Applications: • Industrial water treatment • Seawater desalinization • Swimming pools • Aquariums/oceanariums • Chemical process industry • Surface engineering • Power plant construction Benefits/features: Type 567 • High corrosion resistance: all components that come into contact with media are made of plastic • Low wear and tear: up to 50 % lower operation torque than centric valves • Leak-tightness within and without: double, internal axis gasket on both sides • On standard versions, the lever is in increments of 5 degrees Type 578 • Use as lugged valve with threaded bushes integrated into the housing • Lower weight than metallic butterfly valves due to use of fiberglass-reinforced plastic as housing material • High corrosion resistance: all components that come into contact with media are made of plastic • Low wear and tear: up to 50 % lower actuating torque than centric valves • Leak-tightness within and without: double, internal axis gasket on both sides Flow media • Very well suited for liquid media • Suited for gaseous media • Conditionally suited for media containing solids • Conditionally suited for viscous media

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