Pneumatically Emergency Shut Down Valves SDV ESD Safety Instrumented System
The VESON Emergency Shut Down Valves (ESDV, ESD, ESV, SDV) are used to isolate pressure
and flow from a particular source during an overpressure situation or detection of a dangerous event.
ESD valves are integrated into the design of the plant system equipment and can be installed in-line to
any location upstream, midstream or downstream.
Typical Actions from an Emergency Shutdown System
- Shutdown of part systems and equipment
- Isolate hydrocarbon inventories
- Isolate electrical equipment
- Prevent escalation of events
- Stop hydrocarbon flow
- Depressurize / Blowdown
- Emergency ventilation control
- Close watertight doors and fire door
Product Range
* Pressure Ratings : ANSI Class 150 - 2500
*Shut Off : Soft seat - tested up to Class VI
*Actuator Type : Single-acting, spring return
*Instrumentation : Pneumatic
*Size Range : 4 – 24” Metal seat - tested up to Class V
*End Connections : RFFE, RTJ, weld end
*Closing Time < 3 second (depending on size)
The emergency shutdown function is always performed by an emergency shut down valve. An emergency
shut down valve (also referred to as SDV or Emergency shutdown valve, ESV, ESD, or ESDV) is an actuated
valve designed to stop the flow of a hazardous fluid upon the detection of a dangerous event. This provides
protection against possible harm to plant team, equipment or the environment. ESDV 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 which VESON has pioneered for the last three decades.
VESON offers a wide family of shutdown valves, actuators and positioners are engineered to prevent catastrophic
incidents when deviations in critical processes occur. Our product lines cover a breadth of SIL, ANSI and DIN class
ratings, providing solutions reliable enough to handle the most critical oil & gas applications, whether onshore, offshore
or processing. Shutdown valves are primarily associated with the petroleum industry although other industries also
require this type of protection system (power generation, chemical industry…)
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Integrated Irrigated ESDV Emergency Shutdown Valve Images
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