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{"title":"ASME VIII Div 1 Shell and Tube Heat Exchanger SA516 Gr.70 \/ Gr.485 Carbon Steel","imgUrl":"https:\/\/img.chinax.com\/nimg\/30\/00\/5e3af6f7effe2a322a62dae58017-200x200-1\/asme_viii_div_1_shell_and_tube_heat_exchanger_sa516_gr_70_2f_gr_485_carbon_steel.jpg","attrs":{"Reducer":"ASME SA403 WP316L","Support":"ASME SA516M GR.485","Code Requirements":"TEMA Type AEU or BEU. Can meet TEMA \u201cB\u201d, \u201cC\u201d and \u201cR\u201d, ASME Section VIII Div. 1 and ASME Section III \u201cN\u201d stamp.","Flanges":"ASME SA182M F316L"}}
{"title":"High Efficiency U-Tube Shell & Tube Heat Exchanger with Removable Tube Bundle","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/16\/3c0ff133822352146cf31d3fac90-200x200-1\/high_efficiency_u_tube_shell_26_tube_heat_exchanger_with_removable_tube_bundle_for_oil_26_gas_industry.jpg","attrs":{"Brand Name":"Yuhong","Model Number":"ASTM A179","Certification":"ASME, ISO, PED","Place of Origin":"China"}}
{"title":"ASME Section VIII Div.1 Certified ASME SA-516 Gr.70 carbon steel Shell and Tube","imgUrl":"https:\/\/img.chinax.com\/nimg\/b9\/c1\/39067015cf05898c1c452a7602fb-200x200-1\/asme_section_viii_div_1_certified_asme_sa_516_gr_70_carbon_steel_shell_and_tube_heat_exchanger.jpg","attrs":{"Model Number":"BEU type","Carbon Steel Plate":"ASME SA-516 Gr.70","Price":"1--1000000 USD","Certification":"ASME , U STAMP , PED, API , ABS, LR, DNV, GL , BV, KR, TS, CCS"}}
{"title":"ASME Code Fabricated Shell & Tube Heat Exchanger","imgUrl":"https:\/\/img.chinax.com\/nimg\/88\/55\/3fceb6ca1c6359fbb3474edcb8b1-200x200-1\/asme_code_fabricated_shell_26_tube_heat_exchanger.jpg","attrs":{"Delivery Time":"20-80 DAYS","Minimum Order Quantity":"1 SET","Packaging Details":"PLYWOODEN CASE OR PALLET","Price":"NEGOCIATED"}}
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Yuhong Group: Engineering Critical Equipment for the Energy Sector
Yuhong Group Co., Ltd. provides engineered solutions for demanding industrial processes. Our expertise covers the design, fabrication, and supply of ASME-coded shell and tube heat exchangers, pressure vessels, and their vital components. We specialize in replacement tube bundles, U-tubes, heat exchanger tubes, and all associated parts including tubesheets, baffles, and channel heads, with a focus on reliability in severe service environments.
Product Profile: AES Heat Exchanger for Refinery Applications
The AES Type (floating head) heat exchanger is a workhorse design in oil refineries, valued for its ability to handle thermal expansion and facilitate maintenance. This unit features a replaceable tube bundle constructed with ASME SA179 carbon steel tubes and a sturdy SA266 Grade 2 Normalized (Gr.2N) carbon steel tubesheet, making it a durable and cost-effective solution for various refinery heating, cooling, and condensation duties.
Key Construction & Component Details
Major Assembly
Specification / Material
Function & Refinery-Specific Rationale
Removable Tube Bundle
Tubes: ASME SA179
Allows for easy replacement during turnaround. SA179 tubes offer good heat transfer for hydrocarbons, water, and steam services.
Stationary & Floating Tubesheets
ASME SA266 Gr.2N (Normalized)
The normalized heat treatment provides improved and more uniform mechanical properties (strength, toughness) for reliable performance under thermal cycling.
Shell & Floating Head Assembly
Shell: SA516 Gr.70; Head Assembly: Gasketed
The floating head accommodates differential expansion between shell and tubes, a common occurrence in refinery temperature swings.
Baffle System
SA516 Gr.70
Configurable (single/double segmental) to manage shell-side flow of refinery streams (crude, residues, etc.) and minimize fouling.
Channel & Cover
SA516 Gr.70 or SA105
Provides access to tube ends for inspection and cleaning without disturbing shell-side piping.
Technical Focus: Why AES Heat Exchangers Excel in Refineries
The AES type (Rear Head Removable Floating Head Heat Exchanger) is a classic design specified in the TEMA standards. Its widespread adoption in refineries stems from several key engineering advantages:
Thermal Stress Resistance: Refining processes involve intense temperature fluctuations. The floating head design allows the tube bundle to expand and contract freely, avoiding destructive thermal stress caused by excessive temperature differences.
Easy Maintenance and Cleaning: Refining feedstocks are prone to fouling. The AES design enables the entire tube bundle to be withdrawn, facilitating thorough mechanical cleaning and significantly shortening maintenance downtime.
Versatile Fluid Handling: Features a wide design pressure and temperature range, making it suitable for heat exchange requirements of various refining fluids, from light naphtha to heavy residual oil.
Core Advantages and Customized Engineering Services
Optimized for Refining Conditions: Material selection and design parameters are tailored to refining fluid characteristics to balance heat transfer efficiency and equipment service life.
Maximized Operational Uptime: The removable tube bundle design minimizes production impact during scheduled maintenance, aligning with rigorous turnaround planning schedules.
Flexible Engineering Adaptation: We perform thermal and hydraulic calculations based on your specific process data to optimize tube bundle and baffle design.
Total Cost of Ownership Advantage: Reasonable initial investment combined with easy-to-maintain design delivers excellent long-term value.
Typical Refinery Applications
Crude oil preheating networks
Overhead distillate condensers or coolers
Product coolers (diesel, vacuum gas oil)
Coolers for lubricating oil and seal oil systems
Heavy oil heaters or heat exchangers
Get Your Refinery-Specific Solution
If you need an AES heat exchanger or replacement tube bundle designed and customized for your specific refining process, please contact our engineering team. Send your process conditions (fluid streams, temperature, pressure, flow rate) to jimmy@steelseamlesspipe.com to initiate a technical evaluation.
