Place of Origin:
CHINA
Brand Name:
YUHONG
Certification:
ASME, ABS, DNV-GL , BV, LR , KR, CCS, PED, TUV, ISO9001, AD2000
| Type | Design Characteristics | Best Suited Applications |
|---|---|---|
| Fixed Tubesheet | Tubesheets welded to shell; simplest and most economical construction. May include expansion joint for thermal stress relief. | Clean services with low fouling potential; moderate temperature differences (typically <50°C); water-to-water or steam-to-water applications. |
| Floating Head | One tubesheet free to move; entire bundle can be withdrawn for inspection and mechanical cleaning. | High temperature differentials; fouling services requiring regular cleaning; hydrocarbon and refinery applications. |
| U-Tube | Tubes bent into U-shape; single tubesheet; bundle expands freely without expansion joint. | High thermal expansion; high-pressure tube-side services; applications where shell-side cleaning is sufficient. |
| Component | Typical Material Standard | Key Characteristics |
|---|---|---|
| Shell & Channel | ASME SA516 Gr. 70 | Pressure vessel quality steel; excellent weldability and toughness for structural integrity. |
| Tubes | ASME SA179 | Seamless cold-drawn low-carbon steel; optimized for heat transfer and formability. |
| Tubesheet | ASME SA266 Gr. 2 (Forged) or SA516 Gr. 70 (Plate) | Forged provides superior strength for high-pressure applications; plate is economical for standard duties. |
| Baffles | ASME SA516 Gr. 70 | Supports tubes and directs shell-side flow; thickness per TEMA standards. |
| Nozzles & Flanges | ASME SA105 | Forged carbon steel; available in various pressure classes (150#, 300#, 600#, etc.). |
| Fasteners | ASME SA193 Gr. B7 / SA194 Gr. 2H | High-strength bolting for flange connections; corrosion-resistant coatings available. |
| Component | Primary Function | Design Notes |
|---|---|---|
| Tube Bundle | Transfers heat between shell-side and tube-side fluids | Tube layout (triangular or square pitch) optimized for thermal duty and cleanability |
| Tubesheet | Secures tubes; forms pressure boundary | Thickness calculated for pressure loads and tube expansion forces |
| Shell | Contains shell-side fluid; provides structural support | May include expansion joint for fixed tubesheet designs with high temperature differential |
| Baffles | Enhances heat transfer; supports tubes against vibration | Segmental, double-segmental, or helical patterns available |
| Channel | Distributes tube-side fluid | Removable for tube end inspection and cleaning |
| Saddles / Supports | Supports vessel weight; accommodates thermal expansion | Designed per ASME or customer-specific requirements |
Send your process requirements or inquiry to: jimmy@steelseamlesspipe.com
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