ASME VIII Certified U type Shell and Tube Heat Exchangers For Oil refineries
Yuhong group is a premier global provider of high-precision heat transfer solutions, specializing in the engineering, fabrication, and maintenance of mission-critical equipment for the oil, gas, and petrochemical industries.
Material List
| Item No. |
Description |
Dimensions / Size |
Material Standard |
| 1 |
Shell Course |
I.D. 990*20 THK*L=2100$ |
SA 516 Gr.60 |
| 4 |
Elliptical Head 2:1 |
I.D. 990*19 THK |
SA 516 Gr.60 |
| 8 |
Tubesheet |
O.D. 1050*135 THK |
SA 336 Gr.F11 Cl.2 |
| 41 |
"U" Tubes |
25.4* 2.11 THK (MW)*2135 STR. LG. |
SA 213 Gr.T11 |
| 45 |
Tie Rods |
1/2" -UNC 2030 LG. |
SA 193 Gr.B7 |
| 46 |
Hex. Nuts |
1/2" -UNC (H=D) |
SA 194 Gr.2H |
| 48/49 |
Baffles (Odd/Even) |
O.D. 985.2 10 THK |
SA 387 Gr.11 Cl.2 |
| 52 |
Sliding Rails |
6 THK 2000 LG. |
SA 240-304L |
| PT1 |
Flange |
1.1/2" 300# LWN-RF L=232 |
SA 266 Cl.2 |
| PT3 |
Flange |
1.1/2" 600# LWN-RF L=206 |
SA 182 Gr.F11 Cl.2 |
| 50-52* |
Exchange Tubes (Reboiler) |
3/4"*BWG14 |
SA-179 |
SA-179 Material Specifications
| Property |
Specification / Value |
| Standard |
ASTM A179 / ASME SA179 |
| Grade |
A179/SA179 |
| Carbon (C) |
0.06 - 0.18% |
| Manganese (Mn) |
0.27 - 0.63% |
| Phosphorus (P) |
≤ 0.035% |
| Sulfur (S) |
≤ 0.035% |
| Silicon (Si) |
0.10 - 0.35% (Some sources indicate it is not specified, but a typical range is provided) |
Mechanical Properties
| Property |
Requirement |
| Tensile Strength |
≥ 325 MPa (47,000 psi) |
| Yield Strength |
≥ 180 MPa (26,000 psi) |
| Elongation (in 2 inches / 50 mm) |
≥ 35% |
| Hardness (Max) |
≤ 72 HRB |
Advantages of U-Tube Configurations
Thermal Expansion: The U-bend allows each tube to expand and contract independently.
Simplified Design: Since only one tubesheet is required (Item 8: SA 336 Gr. F11 Cl. 2), the number of potential leak points and the overall weight of the assembly are reduced.
Bundle Removability: Easily removed from the shell for cleaning or inspection.
High Pressure Resistance: The seamless nature of the tubes combined with a secure tubesheet joint allows for high-pressure service.
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ASME VIII Certified U type Shell and Tube Heat Exchangers For Oil refineries Images
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