Product Description Content
Custom Heat Exchanger Tube Bundle & Precision Replacement Components
Yuhong Group Co., Ltd. is a leading manufacturer of industrial thermal equipment, specializing in heavy-duty shell and tube heat exchanger units, air-cooled exchangers, and pressure vessels. Operating from state-of-the-art fabrication facilities, we engineer complete thermal systems and high-precision replacement assemblies, including custom tube bundle configurations, u tube bundle units, and high-efficiency finned tube bundle systems designed for seamless integration into existing plant shells.
Whether you need a drop-in replacement tube bundle for an emergency shutdown or a complete shell & tube heat exchanger redesign, Yuhong Group guarantees tight machining tolerances, superior metallurgy control, and compliance with ASME Section VIII Div. 1, TEMA (Types E, F, G, H, J, K, L, M, N), and API 660 standards.
Tube Bundle Types & Material Specifications
We fabricate replacement bundles tailored to withstand severe thermal expansion, pressure surges, and corrosive process streams:
Bundle Configurations: Straight Tube Fixed Tubesheet, Floating Head (TEMA S/T/P/W), U Tube Bundle, and Extruded/Embedded Finned Tube Bundle.
Stainless & Duplex Steels: 304/304L, 316/316L, 321, 347H, Duplex 2205, Super Duplex 2507. Outstanding resistance to pitting and chloride stress corrosion cracking in refinery heat exchangers.
Nickel & Special Alloys: Alloy 400, Alloy 600/625, Alloy 800H, Hastelloy C276. Designed for acid concentration units and high-temperature furnace gas exchangers.
Copper & Titanium Alloys: CuNi 90/10 (C70600), CuNi 70/30 (C71500), Titanium Gr. 2. Engineered for seawater cooling, marine condensers, and offshore FPSO applications.
Core Components & Spare Parts Specification
| Component | Engineering Standards & Options | Technical Role & Function |
| Heat Exchanger Tubesheet | Forged Carbon Steel (SA105, SA516 Gr.70), Stainless Steel, Clad Steel Plates | The structural anchor of the tube bundle. Precision CNC drilled and grooved to ensure leak-proof expanded or strength-welded tube joints. |
| Heat Exchanger Tubes | Seamless or Welded (Straight & U-Bended per ASTM A213 / A249 / B111) | High-efficiency heat transfer tubes cold-drawn to precise tolerances, ensuring uniform wall thickness and optimal fluid flow. |
| Baffle Plates & Tie Rods | Segmental, Double Segmental, NTIW, Helical Baffles | Directs shell-side fluid cross-flow for maximum convective heat transfer while supporting tubes against flow-induced vibration. |
| Finned Tubing | Extruded, Embedded (G-Type), L-Foot, High-Fin Aluminum | Multiplies external thermal surface area for finned tube bundle configurations used in air coolers and waste heat recovery. |
| Sealing Gaskets & Fasteners | Spiral Wound, Double Jacketed Soft Iron/SS316, Heavy Hex Bolts | Guarantees tight mechanical seals between channel covers, shell flanges, and the heat exchanger tubesheet. |
Key Technical Highlights & Manufacturing Advantages
In-House Tube Mill Advantage: As a direct producer of seamless alloy and stainless tubing, Yuhong Group controls raw material quality from melt to final assembly, offering unmatched delivery speed for urgent shell and tube heat exchanger retubing projects.
Advanced Joint Integrity: Utilizing automated orbital TIG welding and torque-controlled/hydraulic expansion, every tube-to-tubesheet connection withstands high operating pressures without fatigue failure.
Reverse Engineering & Exact Field Fit: We build replacement bundles using detailed 3D field laser scanning or client-provided drawings, ensuring 100% dimensional match for existing shell structures.
Comprehensive Quality Testing: 100% Eddy Current Testing (ET), Hydrostatic Pressure Testing, Dye Penetrant Inspection (PT) on weld seams, and Positive Material Identification (PMI).
Engineering Guide: Preventing Failure in Shell & Tube Bundles
To extend the service life of your shell & tube heat exchanger and lower total maintenance costs, consider these critical operational guidelines:
Mitigating Tube Vibration Fatigue: High shell-side fluid velocities can trigger vortex shedding, causing tubes to collide or chafe against baffle holes. Specifying No-Tubes-In-Window (NTIW) baffle layouts or impinement plates near shell nozzles prevents mid-span vibration damage.
Preventing Crevice Corrosion at the Tubesheet: For sour gas or chloride service, simple mechanical expansion leaves micro-gaps prone to crevice corrosion. Combine full-depth hydraulic expansion with automated seal welding on the heat exchanger tubesheet face to eliminate fluid ingress.
U-Bend Stress Relief Treatment: Cold-bending seamless tubes into a u tube bundle creates residual stress in the bend radius. Always specify post-bend heat treatment (solution annealing for stainless steel) to prevent Stress Corrosion Cracking (SCC) during operation.
Industry Applications
Oil & Gas Processing: Amine reboilers, crude pre-heat trains, overhead condensers, and gas fractionating exchangers.
Petrochemical Plants: Ethylene cracking units, reactor cooling bundles, and aromatic recovery systems.
Power Generation: High-pressure feed water heaters, turbine oil coolers, and auxiliary cooling water exchangers.
Marine & Desalination: Seawater evaporators, titanium oil coolers, and deck-mounted process exchangers.
Contact Our Thermal Engineering Team
Need an urgent quote for a replacement u tube bundle, a high-performance finned tube bundle, or custom heat exchanger tubesheet spare parts?
Company: Yuhong Group Co., Ltd.
Website: www.tema-heatexchanger.com
Direct Email: jimmy@steelseamlesspipe.com
Compliance Standards: ASME VIII Div 1, TEMA, API 660, PED 2014/68/EU, ISO 9001
