Shell and Tube Heat Exchanger ASME Section VIII Div. 1 TEMA Class C
High-Pressure (HP) Superheater shell and tube heat exchanger fabricated for geothermal power generation installations. Operating as an ASME Section VIII Division 1 stamped TEMA heat exchanger, this unit processes n-Butane C.G. on the shell side and geothermal steam/brine on the tube side. Note: High-density finned tube bundle options can be integrated for gas-phase thermal recovery systems requiring expanded external surface area per project requisites.
Core Technical & Fabrication Features
- ASME Code Stamped Structural Design: Fabricated and stamped in compliance with ASME Boiler and Pressure Vessel Code Section VIII, Division 1 and TEMA Class C criteria.
- Corrosion-Resistant Cladding: Applies a 10 mm minimum SS 316L weld overlay across the SA-266 Class 2N tubesheet face and a 3 mm minimum SS 316L cladding layer on internal channel surfaces.
- Tube-to-Tubesheet Fabrication: Includes strength-welded tube-to-tubesheet joints verified via pre-hydrostatic helium leak testing.
- Mounting Integration: Equips fixed and sliding saddles with 3 mm SS 304 baseplates under sliding units to accommodate axial thermal expansion.
Quality Assurance & Testing Specifications
- Radiographic Examination (RT): 100% full radiographic testing (RT-1) executed on all longitudinal and circumferential pressure-retaining butt welds.
- Non-Destructive Testing (NDT): Ultrasonic Testing (UT), Liquid Penetrant Testing (PT), and Magnetic Particle Testing (MT) performed in accordance with ASME Code Section V.
- Hydrostatic Pressure Test: Shop hydrostatic test executed at vendor-calculated pressures matching the highest requirement between ASME Code and project engineering standards.
- Joint Integrity Testing: Strength-welded tube-to-tubesheet connections undergo helium leak testing prior to final hydrostatic pressure testing.
- Material Certification: All pressure-retaining components, shell attachments, and lifting lugs furnished with EN 10204 Type 3.1 inspection certificates.
International Logistics & Market Support
- Internal Protection: Internal pressure chambers cleaned, dried, and charged with positive nitrogen pressure prior to shipping.
- Structural Transport Supports: Fabricated steel saddles fitted with 3 mm SS 304 sliding plates to prevent carbon steel contact corrosion during sea transit.
- Export Documentation Compliance: Shipped with complete ASME Form U-1A reports, EN 10204 3.1 MTRs, full NDE dossiers, and pre-approved SONCAP / Form M documentation for international project customs clearance.
Engineering Support & Global Project Services:
For custom ASME design verification, HTRI thermal calculations, or urgent RFQ processing, our lead sales engineer Max Zhang (Yuhong Group) provides direct technical assistance.
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Direct Line / WhatsApp: +86-153-8196-4640
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Engineering Mail: max [at] steelseamlesspipe [dot] com
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Official Spec Portal: www [dot] tema-heatexchanger [dot] com
