• Emergency Shut Down Actuation
    Valves (ESDV)

    Our valves are designed for ease of
    maintenance and maximum reliability regardless...


  • A shut down valve also referred to as sdv or emergency shutdown valve, esv, esd, or esdv. This esdv is designed to stop the flow of a hazardous fluid upon the detection of a dangerous event. This provides protection against possible harm to people, equipment or the environment.
  • Flowchem make shutdown valves form part of a safety instrumented system. The process of providing automated safety protection upon the detection of a hazardous event is called functional safety Shutdown valves are primarily associated with the petroleum industry although other industries may also require this type of protection system.
  • For shutdown valves used in safety instrumented systems it is essential to know that the valve is capable of providing the required level of safety performance and that the valve will operate on demand. The required level of performance is dictated by the safety integrity level ("SIL")
  • As shutdown valves form part of a sis & it is necessary to operate the valve by means of an actuator. These actuators are normally fail safe fluid power type. In addition to the fluid type, actuators also vary in the manner in which the energy is stored to operate the valve on demand.
  • The esdv's are typically, pneumatic actuated valves (spring return or double acting). The type of actuation required depends upon the application, site facilities and also the physical space available although the majority of actuators used for shutdown valves are of the spring return type due to the fail safe nature of spring return systems

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