Butterfly Valves of the Safeflex series are designed and manufactured according to the requirements of the application. Face to face dimensions are according to EN 558-1, API 609, ANSI B16.10. Individual face to face dimensions are possible as well. The metal sealing system fulfils the leakage-class requirements of EN 12266-1A and ANSI B16.106 Class VI (zero leakage). Individual material selection allows a high grade on flexibility. The valves can be operated by means of different types of actuators. Actuator flange connections are according to international standards.