DOUBLE ECCENTRIC BUTTERFLY VALVES :: DESIGN Drawing In respect of ANSI B16.34, ASME Sez. VIII and IX, API 609 Face to face In respect of API 609, ISO 5752, BS 5155 Flanges coupling In respect of ANSI B16.5, MSS-SP-44, BS 3293, UNI, DIN, ISO Inspection In respect of API 598, API 6D, ANSI B16.104, ISO 5208 Marking In respect of MSS-SP-25 Valve manufacturing Integral: welded, forged or oxygen cut body Electro-welded: welded body Temperatures Starting from -40°C up to + 180°C using suitable materials. Our design dept. works with the more sophisticated and advances information engineering applications for the realisation of the products. Thanks to these simulating programs our valves are designed in 3D and their structure is verified through the Finite Elements System in order to obtain the simulation of a perfect functioning. Here below we show you an example of graphic representation concerning triple eccentric butterfly valves Valve body pipe submitted at an internal pressure of 6 bar The following images simulate a shaft during the torsion phase    Graphic representation concerning the powers distribution during the closure phase of the seal ring