Ethylene cracking & decoking valve applications
Transfer-line and decoking duties combine elevated temperature with changing media and particulate exposure.
The application
Ethylene furnace systems alternate between production and decoking. Transfer-line isolation must be reviewed for hot process gas, coke particles and the conditions encountered during cleaning. A valve description alone does not establish its suitability for this sequence.
What makes the duty demanding
- Particle erosion and internal deposits
- Thermal movement at sealing interfaces
- Failure to complete the required operating sequence
Selection focus
Review materials, seating, purge provisions and actuation against both production and decoking conditions. Define the isolation requirement at each stage.
Technical background
IMI — Ethylene transfer-line and decoking valve ↗Process background summarised from these primary references. References do not imply affiliation or qualification of a VFLV product.
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