The delayed coker process is a batch process, one of the most hostile environments in the refinery â€“ due to the abrasive and erosive fouling properties of the coke by-product.The valves also experience extreme thermal cycling. Valves are cycled frequently and failure can lead to a complete shutdown of a unit, resulting in large process and financial costs.
|Sizes||6 â€“ 42â€|
|Pressure Classes||ASME / ANSI Class 300 â€“ 2500|
|Materials of Construction||Standard materials: For SP valves: A217 Gr. C12, A217 Gr. C5
For heater isolation valves: A217 Gr. C12, IncoloyÂ® 800 H, 317SS
|Shutoff||Absolute zero-leakage shutoff|