ASME Section VIII Div. 1 TEMA Class C Team Heat Exchanger SS 316L Finned Tube Bundle
Low-Pressure (LP) Condenser shell and tube heat exchanger manufact for geothermal power plant operations. Functioning as an ASME Section VIII Division 1 stamped team heat exchanger, the shell side handles Organic Rankine Cycle (ORC) motive fluid (Butane C.G.) condensing while cooling water circulates through the tube side.
Core Components & Material Specifications
| Component Part | Material Grade / Standard Specification | ASME / ASTM Material Code |
|---|---|---|
| Pressure Shell & Condensate Pot |
SA-516 Grade 70 Carbon Steel Plate |
ASME SA-516 Grade 70 |
| Channel / Cover |
SA-516 Grade 70 + SS 316L Cladding (3 mm min. thickness) |
ASME SA-516 / SA-240 |
| Heat Transfer Tubes |
Seamless Stainless Steel SA-213 TP316L (19.05 mm OD x 0.889 mm AW) |
ASME SA-213 Grade TP316L |
| Stationary Tubesheet |
SA-266 Class 2N Forging with SS 316L Weld Overlay (10 mm min. thickness) |
ASME SA-266 Class 2N |
| Baffles & Support Plates |
Carbon Steel Support Baffles (Spacing: 1184.3 mm) |
ASME Sec. II / TEMA Class C |
| Bolting (Studs / Nuts) |
SA-193 Grade B8M Studs / SA-194 Grade 8M Heavy Hex Nuts |
ASME SA-193 / SA-194 |
| Internal Gaskets |
Kamprofile 316L with Flexible Graphite Facing |
ASME B16.20 |
| Process Nozzles & Flanges |
SA-106 Grade B / Flanged per ASME B16.5 & ASME B16.47 Series B |
ASME B16.5 / B16.47 |
Core Technical & Fabrication Features
ASME Code Stamped Fabrication
High-Density Tube Matrix Arrangement
Internal Fluid Distribution System
High-Integrity Cladding & Overlays
Dual-Pass Tube Circuit Construction
Quality Assurance & Testing Specifications (QA/QC Specification)
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 Testing: Shop hydrostatic pressure tests conducted at vendor-calculated pressures matching the highest value required between ASME Code and project engineering rules.
Tube Joint Integrity Audits: Strength-welded tube-to-tubesheet joints undergo pre-hydrostatic helium leak testing.
Material Traceability: All pressure-retaining parts, shell attachments, and lifting lugs furnished with EN 10204 Type 3.1 material test certificates.
International Logistics & Market Support
Internal Nitrogen Preservation: Internal shell and tube chambers fully evacuated, dried, and charged with positive pressure nitrogen gas blanket prior to export shipment.
Heavy-Duty Structural Shipping Supports: Mounted on heavy-gauge steel support saddles fitted with 3 mm SS 304 sliding plates under sliding pads to accommodate expansion and prevent contact corrosion.
International Export Compliance: Provided with ASME Form U-1A Manufacturer's Data Report, EN 10204 3.1 material test report dossiers, NDE logs, and pre-approved SONCAP / Form M documentation for international customs clearance.
