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…)
