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{"title":"ASME U\u2011Tube Shell & Tube Heat Exchanger TEMA BEU Class R for Petrochemical","imgUrl":"https:\/\/img.chinax.com\/nimg\/7a\/38\/64514397e4311aef55e630611844-200x200-1\/asme_u_e2_80_91tube_shell_26amp_3b_tube_heat_exchanger_tema_beu_class_r_for_petrochemical.jpg","attrs":{"type":"BEU Type","Delivery Time":"45---150 DAYS","tube":"SA-179","Shell Supports":"SA-285"}}
{"title":"High Temperature Resistance U-tube Bundle for Custom Shell & Tube Heat","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/e1\/353e30676ec8287e6dd7d3b3dd54-200x200-1\/high_temperature_resistance_u_tube_bundle_for_custom_shell_26_tube_heat_exchangers_with_superior_thermal_performance.jpg","attrs":{"Packaging Details":"Sea Worthy Package","Shell Diameter":"Custom Design","Supply Ability":"3000 sets\/ year","Model Number":"Shell and Tube Heat exchanger"}}
{"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"}}
{"title":"Heat Exchanger (ASME \/ TEMA \/ABS) High-Efficiency, Test-Certified Heat Transfer","imgUrl":"https:\/\/img.chinax.com\/nimg\/61\/72\/e139e3396f4cf6c32ab7c45cf092-200x200-1\/heat_exchanger_28asme_2f_tema_2fabs_29_high_efficiency_2c_test_certified_heat_transfer_for_industrial_26_marine_applications.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"SHELL AND TUBE HEAT EXCHANGER","Certification":"ASME \/ TEMA \/ABS","Place of Origin":"CHINA"}}
ASME U‑Tube Shell & Tube Heat Exchanger TEMA BEU Class R for Petrochemical Process Duty
YUHONG produce the heavy‑duty U‑tube bundle shell‑and‑tube heat exchangers engineered expressly for continuous, high‑severity process service in refinery and petrochemical environments. Every pressure‑boundary component — shell, channel, tubesheets, nozzles, and reinforcing pads — is mechanically designed, fabricated, inspected, and stamped in full compliance with the ASME Boiler & Pressure Vessel Code, Section VIII, Division 1 (ASME VIII‑1), integrated with TEMA Class R mechanical standards and API 660 where refinery‑specific requirements apply.
Design Code & Governing Standards
Primary Design Code
ASME BPVC Section VIII, Division 1
Mechanical / Geometry Standard
TEMA — Class R
Industry Practice Supplement
API 660 / API 661
Welding Qualification
ASME Section IX
Flange / Nozzle Dimensioning
ASME B16.5 (flanges), ASME B16.47 (large‑diam.), ASME B31.3 (piping interface loads considered in nozzle reinforcement per UG‑37)
Stamp
ASME "U" Stamp
Welding & NDT Regime (ASME VIII‑1 / Section IX)
Weld Category
Typical NDT Requirement
Long. & circ. shell seams (pressure)
RT per UW‑51 (typically 100 % for Class R), or UT where approved
Nozzle‑to‑shell / insert welds
MT or PT (surface crack detection) per UW‑50 / project spec
Tube‑to‑tubesheet seal welds
PT or MT 100 %
Core Pressure‑Boundary Construction
Formed from normalized carbon steel plate (typically SA‑516 Gr. 60/70) or alloy/clad construction where process chemistry dictates.
Longitudinal and circumferential seams are full‑penetration, radio graphed per project NDT matrix (ASME VIII‑1, UW‑51).
Minimum thickness established per UG‑27 / UG‑16(b) plus stated corrosion allowance, plus forming thinning tolerance.
Bolted channel cover or integral A head depending on service access requirements — both designed per UG‑34 (flat heads) and UG‑32 (formed heads).
Gasket contact surfaces machined to finish compatible with spiral‑wound or ring‑joint gaskets, selected per ASME pressure‑temperature rating.
U‑tube tubesheet designed per ASME VIII‑1 + TEMA ligament‑efficiency method.
Unperforated rim (facing) and tube‑hole tolerance controlled to TEMA Class R limits.
Where galvanic or corrosion severity requires: clad overlayapplied per a Section IX‑qualified WPS, with dilution and interpass temperature controlled; overlay thickness verified by UT/PT.
Tubes bent to minimum bend radius ≥ 1.5 × tube OD .
Tube‑to‑tubesheet joint: roller‑expanded + seal weld, with the weld procedure qualified under ASME Section IX.
Baffles / support plates: segmental or disk‑and‑dough nut per thermal design; baffle spacing never < 20% of shell ID or 50 mm (TEMA); baffle hole clearance controlled to limit tube vibration and erosion.