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The BZSV Cracking Gas and Decoke Valve is a specialized high-performance valve designed for ethylene cracking units, specifically installed at the furnace outlet to isolate both the main cracking gas line and the decoking line. These valves play a crucial role in managing high-temperature, particle-laden media during normal operations and coke-clearing cycles.
Available in sizes up to 48" and capable of operating at temperatures up to 550°C, the valve design supports both metal-to-metal hard seal options—such as parallel double gate and wedge gate valves—and soft-sealed flat plate gate configurations. Constructed with a fully welded body, the valve is engineered for long-term service in extreme environments, with hard alloy overlays on all sealing surfaces for enhanced wear and corrosion resistance.
Featuring double-channel design and full bore flow path when open, the valve minimizes flow resistance and prevents coke particle accumulation. Its internal components are accessible from both the top and bottom for efficient maintenance, and steam cleaning ports are integrated into the body for in-line purging.
– Valve Type: Cracking gas valve / Decoke valve
– Operation: Manual, Gear-operated, Electric actuated
– Size Range: Up to 48 inch
– Pressure Class: 150Lb, 300Lb
– Temperature Rating: Up to 550°C
– Body Design: Fully welded structure
– Seal Type:
• Hard seal (parallel double gate / wedge gate)
• Soft seal (flat plate gate)
– Sealing Material: Hard alloy overlay (metal seat)
– Connection Standard: ANSI B16.5 (Flanged)
– Design Standard: ANSI B16.34
– Face-to-Face: ANSI B16.10
– Test Standard: DIN 3230 Part 3
– Cleaning Ports: Integrated top and bottom steam purge ports
– Maintenance: Top and bottom removable internal components
– Flow Path: Dual channel, full bore, no particle accumulation
– Applications: Ethylene cracking units, coke-clearing systems, high-temperature petrochemical processes
For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com
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