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| 起源の場所: | 中国 |
| ブランド名: | YUHONG |
| 証明: | ASME, ABS, DNV-GL , BV, LR , KR, CCS, PED, TUV, ISO9001, AD2000 |
| モデル番号: | ASME SA179 |
| 最小注文数量: | 1セット |
|---|---|
| 価格: | NEGOCIATED |
| パッケージの詳細: | 複合木のケースやパレット |
| 受渡し時間: | 20〜80日 |
| 支払条件: | T/T、L/C |
| 供給の能力: | 500 トン |
| チューブ材質: | ASME SA179 (炭素鋼) |
|---|
Yuhong Group Co., Ltd. supplies high-quality thermal equipment including shell & tube heat exchangers (TEMA heat exchanger designs), pressure vessels, air coolers - and every critical internal component. We deliver ASME-compliant parts that restore performance and extend equipment life.
The carbon steel tube bundle is the removable core of a shell & tube heat exchanger, consisting of ASME SA179 seamless tubes, SA266 Gr.2 forged tubesheet, baffles, tie rods, and spacers. Designed as a direct drop-in replacement for existing units in non-corrosive or mildly corrosive services.
| Component | Material (Typical) | Role in Equipment Performance |
|---|---|---|
| Heat Exchanger Tube | ASME SA179 (carbon steel) | Carries tube-side fluid; primary heat transfer surface. Typically hundreds of tubes per bundle. |
| Fin Tube (optional) | Carbon steel + aluminum fin | Increases surface area by 3-5* for gas or low-HTC fluids, boosting heat transfer without resizing the shell. |
| Furnace Tube | Heavy-wall chrome-moly (P5, P9) | For high-temperature sections; resists creep and oxidation in waste heat recovery applications. |
| Heat Exchanger Tubesheet | SA266 Gr.2 forged | Holds all tubes; separates shell-side from tube-side fluid. Precision-drilled for leak-tight tube rolling. |
| Baffles | SA516 Gr.70 | Direct shell-side flow across tubes, support tubes against vibration, increase turbulence. |
| Tie Rods & Spacers | Carbon steel (SA193 B7) | Hold baffles at correct spacing; ensure bundle rigidity during shipping and operation. |
| Sealing Strips | Carbon steel | Block shell-side fluid from bypassing the bundle periphery; maximize thermal efficiency. |
| Situation | Repair Viable? | Why Replace Instead |
|---|---|---|
| <5% tubes plugged | Yes, repair acceptable | Replacement not yet justified |
| 5-15% tubes plugged | Borderline | Loss of surface area reduces duty; replacement restores original performance |
| >15% tubes plugged | No | Significant duty loss; future plugging will accelerate |
| Tubesheet face corroded/grooved | No | New tubes will not seal properly against old tubesheet |
| Frequent tube leaks near inlet | No | Impingement erosion - design flaw requiring proper impingement plate |
We provide individual parts for your own assembly:
Send your old bundle drawing, field sketch, or heat exchanger model number to jimmy@steelseamlesspipe.com. We will:
コンタクトパーソン: Jimmy Huang
電話番号: 18892647377
ファックス: 0086-574-88017980
