Top Head and Overhead System
AssemblyAutomated top unheading device and the overhead line carrying cracked vapor to the coker fractionator. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Top Head and Overhead System
6 top-level lines as of r32409| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Top Unheading Device | coker-top-unheading-valve | 1× | 1 | · | part |
| 2 | Overhead Transfer Line | coker-overhead-line | 1× | 1 | · | part |
| 3 | Overhead Quench Ring | coker-overhead-quench-ring | 1× | 1 | · | part |
| 4 | Overhead Isolation Valve | coker-spool-isolation-valve | 2× | 2 | · | part |
| 5 | Top Head Actuator | coker-top-head-actuator | 1× | 1 | · | part |
| 6 | O-Ring Set | oring-set | 4× | 4 | · | part |