Added to quote
Your quote has no products.
Quick product entry
IMI Z&J
Delayed Coking Top Unheading Valve
Automated top unheading valve for safe and efficient delayed coking operations.
Double block and purge design enhances safety.
Low steam consumption reduces operational costs.
Reliable sealing prevents hydrocarbon gas leakage.
Features
The IMI Z&J Delayed Coking Top Unheading Valve ensures safe, fully automated coke drum unheading in refinery operations. Using a double-disc through-conduit gate valve, it provides tight sealing, low steam consumption, and minimal fugitive emissions. The two-disc design prevents hydrocarbon gas leakage, while active mechanical seating ensures high tightness. Built for high pressure and frequent cycling, it features corrosion-resistant seats and a guided carrier to prevent coke fines buildup. Available in electric and hydraulic actuation, with backup manual operation, it reduces maintenance costs and enhances plant safety.
Key features
Electric or hydraulic actuation
API 598 shut-off
Double-disc sealing
Low steam consumption
-40°C to +60°C operation
Manual backup operation
Easy on-deck inspection
Specifications
Fluid Types
Hydrocarbon Vapour
Port Size (")
30 to 42
Maximum Working Pressure (barg)
5
Material
Low Alloy Steel
Design Codes
ASME VIII Div.1
ASME VIII Div.2
ASME B31.3
EN
Temperature Limits (°C)
-46 to 510
Certification
PED
CRN
Resources
By downloading, you confirm that you accept our Terms and Conditions. Please refer to them for full details on usage.
