New Butterfly Valve 567
26 January 2006
The new butterfly valve 567 from Georg Fischer Piping Systems offers measurable added value and a genuine option for industrial installations.
GF Piping Systems will be launching the new 567 butterfly valves worldwide early in 2006. They will be available in tried and tested materials for DN50 to DN200. The new valves replace the type 367, which – including an expansion of dimensions in 1999 – has been successful on the market since 1982. The new models will be presented to the general public for the first time at the Achema 2006.
Georg Fischer is a leading manufacturer of components for industrial piping systems. Customer expectations are therefore high – and the many innovative details cater to these needs.
New: the double eccentric operating principle
The double eccentric principle of the disc provides an excellent seal to the outside while 2 additional sealing elements are contained in the passage. It also permits having all the components that come into contact with the medium in the same material as the pipeline, thus reducing permeation. Furthermore, the actuation torque has been reduced, accordingly increasing the service life. Due to the double eccentricity, the actuation torque depends largely on the medium pressure in the butterfly valves which have been designed for a nominal pressure of PN10. This enables using smaller, more economical actuators in many applications with lower medium pressure.
An ergonomic all-plastic lever with 5° ratchet setting ensures precise positioning and a sturdy hold. Another innovative feature is the electric position feedback integrated in the mounting flange.
