Samson 3241 Manual

Also see for 3241: Mounting and operating instructions Mounting and operating instructions Mounting and operating instructions Mounting and operating instructions

Contents

21Competence in Functional SafetyFunctional safety of globe valves, rotary plug valves, ball valves and butterfly valvesResponsibility To ensure the control valve functions properly, the pipeline must be designed to bestraight and without any manifolds or disturbances for a distance of at least six timesthe pipe size (DN) upstream and downstream of the valve. It must be checked whether the mounting position of the control valve complies withthe manufacturer‘s specifications (operating instructions). The devices used must be checked to ensure they are suitable for use under theprevailing ambient conditions (temperature, humidity etc.). While installing the control valves, sufficient space must be left to remove the valvefor maintenance. The wiring and function of devices must be documented in a wiring plan.Main cable routeInstrument air manifoldG+81 -82 +11 -12 +83 -84 +51 -52A2A3 A1+41 -42 +31 -32Example: Wiring plan for a control valve with positioner, solenoid valve and limit signals