Project: Ningbo Haiyue 600,000 Tons Propane and Carbon Four Utilization Propane Dehydrogenation Project
Designed by: Sinopec Ningbo Engineering Company
Product: Three Major Piping Systems
Maximum Caliber: DN2400
Materials Used: WP321H, F321H, WP11, F11, WP310S, F310S
What is Piping Spools Prefabrication?
Piping Spools Prefabrication refers to the offsite fabrication of piping systems, including pipe sections, fittings, flanges, and gaskets, in a controlled environment before transportation and assembly at the final installation site. This process increases construction efficiency, improves quality, and minimizes on-site work and delays.
FEITING Group’s Role in the Ningbo Haiyue Project
FEITING Group is proud to serve as the trusted supplier of Piping Spools Prefabrication for the landmark Ningbo Haiyue 600,000 Tons Propane and Carbon Four Utilization Propane Dehydrogenation Project. Designed by Sinopec Ningbo Engineering Company, this project demanded extreme precision, advanced material selection, and high-capacity fabrication capabilities.
FEITING's responsibilities included the complete prefabrication of three critical piping systems. Our manufacturing facility successfully processed and delivered prefabricated spools up to DN2400 in diameter — a scale that showcases our advanced production capability.
Materials and Specifications
The project required various high-performance alloys to meet the extreme operating temperatures and pressures associated with propane dehydrogenation (PDH) processes. The materials used in the prefabrication process included:
WP321H and F321H – Known for high-temperature resistance and long-term structural stability.
WP11 and F11 – Chrome-moly alloy steels ideal for high-pressure and high-temperature applications.
WP310S and F310S – Austenitic stainless steels with superior oxidation resistance.
These materials were precisely cut, welded, and assembled into prefabricated piping spools following strict industry codes and client specifications.
Components Included in Prefabrication
FEITING Group’s scope of Piping Spools Prefabrication included not just straight pipe lengths, but also all integral components such as:
Flanges: For secure and leak-proof connection points.
Elbows: Ensuring directional changes in pipelines with smooth flow dynamics.
Gaskets: Providing tight seals between flanged connections.
Each prefabricated spool underwent thorough inspection, non-destructive testing (NDT), and quality assurance to ensure reliability in the field.
Benefits of Piping Spools Prefabrication
Partnering with FEITING for Piping Spools Prefabrication provides numerous advantages:
Faster on-site installation
Reduced construction time and labor costs
Improved welding and dimensional accuracy
Minimal rework due to factory-controlled QA/QC
Better safety by minimizing site congestion
These benefits have been critical in keeping the Ningbo Haiyue PDH project on schedule and within budget.
Why Choose FEITING Group?
With decades of expertise and cutting-edge fabrication facilities, FEITING Group stands out as a premier provider of Piping Spools Prefabrication solutions. Our teams specialize in handling complex metallurgy, tight delivery schedules, and strict compliance requirements.
For this project, FEITING delivered more than prefabricated products — we delivered assurance of quality, safety, and project success.
Contact Us
To learn more about FEITING Group’s Piping Spools Prefabrication capabilities or to discuss your next project, please contact our sales and technical team today.
Email:inquiry@feitingpipe.com
Phone: +86-18621118600