Due to closing ESD valves in a process, there may be some trapped flammable fluids, and these must be released in order to avoid any undesired consequences (such as pressure increase in vessels and piping). For this, emergency depressurization (EDP) systems are used in conjunction with the ESD systems to release (to a safe location and in a safe manner) such trapped fluids. Blowdown Valves are traditionally used to evacuate such trapped fluids and are solely controlled by the ICSS.
|Dimension||DN 15-1500 (1/2"-60")|
|Pressure||PN 10-400 (Class 150-2500)|
|Temperature||-20°C til +800°C|
|Execution||Fail Safe Open|