ASME U Stamp Certified High-Performance TEMA Class R Floating Head Heat Exchanger

ASME U Stamp Certified High-Performance TEMA Class R Floating Head Heat Exchanger

YUHON is proud to present our latest engineered-to-order process equipment: the Vacuum Oxidation Unit Heat Exchanger. Built to the highest industry standards, this robust shell and tube heat exchanger is designed for critical thermal duties in demanding refinery and chemical processing environments. It perfectly balances superior heat transfer efficiency with long-term operational reliability.

Key Product Attributes & Specifications

• ASME VIII-1 2021: Ensuring absolute structural integrity under high-pressure conditions.
• TEMA Class R (AET Type): Guaranteeing rugged construction for severe service applications.
• TEMA Type:​ AET (Floating Head)
• Bundle Removal Clearance:​ 6,368 mm (Optimized for easy maintenance)
• Construction Code:​ ASME VIII-1 2021​ / TEMA Class R​

Thermal & Hydraulic Design

Engineered as a true workhorse for demanding vacuum oxidation processes, this heat exchanger is optimized for maximum thermal efficiency. The hydraulic design strategically balances fluid velocity on both the shell and tube sides to maximize the overall heat transfer coefficient while minimizing pressure drop. It is built to withstand significant operational stresses, with the shell side engineered for high-pressure containment and the tube side optimized for elevated temperature resilience. Our conservative approach to corrosion allowance ensures a prolonged service life, safeguarding your investment against the harsh realities of oxidation chemistry.

Premium Material of Construction (MOC)

Reliability begins with material integrity. We utilize only premium, industry-certified materials rigorously verified against ASME​ standards to combat corrosion and ensure structural durability. The pressure boundary components are constructed from high-grade carbon steel plates known for their excellent performance in pressure vessel service. The tubing bundle consists of seamless steel tubes, selected for superior thermal conductivity and expanded into the tubesheets using advanced joint technology to guarantee a permanent, leak-free seal. Critical load-bearing components, such as nozzles and flanges, are machined from heavy-duty forgings to endure high bolting loads and cyclic operational pressures.

Mechanical Configuration & Maintenance Features

Designed with operational excellence in mind, the mechanical configuration prioritizes maintainability and long-term stability. The internal baffle arrangement is meticulously engineered to promote optimal turbulence for heat transfer while preventing flow-induced vibration—a common cause of premature failure. To protect the core bundle, robust impingement protection is integrated to deflect high-velocity inlet streams. Furthermore, the unit utilizes high-integrity gasketing and bolting systems, calculated to maintain a vapor-tight seal under extreme conditions. Quality is assured through stringent non-destructive examination (NDE) practices, including radiographic inspection on critical welds, ensuring every unit meets the highest standards of safety and workmanship.

Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor.  

Jinjiang Factory: 
Main Products: Heat Exchanger, Pressure Vessel ,Condenser, Economizer, Evaporator, Column, Fired Heater;

Certificates: ASME PP, ASME S, ASME U, ASME NB, ISO3834, GB/T24001-2016/ISO 14001:2015, GB/T9001-2016/ISO9001:2015,
                      GB/T45001-2020/ISO45001:2018, TS2232A55-2026
Factory Info.: Workshop 6000 square meters, 160 workers, 1000sets/year.

 

Jiangyin Factory:
Main Products: Heat Exchanger, Pressure Vessel ,Condenser, Economizer, Evaporator;

Certificates: ASME U, ASME NB, GB/T9001-2016/ISO9001:2015,GB/T24001-2016/ISO 14001:2015, 
                      GB/T45001-2020/ISO45001:2018, GB/T9022.1-ISO10012-1.
Factory Info.: Workshop 24000 square meters, 120 workers, 600sets/year.
 

Yancheng Factory:
Main Products: Air-cooled Heat Exchanger, Cooling Tower, Pressure Vessel, Economizer, Evaporator;

Certificates: ASME U, CTI Certification, Air Cooler safety registration certificate, Pressure Vessel TS,
                      GB/T9001-2016/ISO9001:2015,GB/T24001-2016/ISO 14001:2015, GB/T45001-2020/ISO45001:2018                      
Factory Info.: Workshop 100000 square meters, 450 workers, 2000sets/year.