ASME SEC. VIII DIV.1 TEMA Type BEU TEMA Class R Heat exchangers for Oilfield surface facilities
YUHONG believe the performance ceiling of any heat exchanger is defined by its raw components. Our technical specifications are not just a bill of materials; they are a deliberate engineering strategy.
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Forged for Strength:SA-105N forged flanges for critical nozzles
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Seamless for Integrity:SA-106 Gr.B seamless pipes for pressure parts
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Engineered for Resilience: spiral-wound gaskets that maintain seals through thermal transients to SA-193 B7 high-strength bolting that preserves flange integrity under vibration
Heat Exchanger Design Data-Physical Specifications
Empty Weight: 3350kg
Operating Weight: 6000kg
Full Water Weight: 1960 kg
Hydrostatic Test Weight: 5350kg
Insulation Thickness: 100mm
Design Life: 20 Years
TEMA Type / Class: BEU / R
Components & Accessories
Gaskets: Spiral-wound gaskets (Type I & II).
Nozzle Components: SA-105N Flanges and SA-106 Gr.B N Pipes.
Support Spacers: SA-210 Gr.A-1 Seamless steel pipe
Hardware: M27/M10 Bolts and Nuts (SA-325, SA-563, SA-193/194).
Earth Lugs: SA-240 304 Stainless Steel.
Testing Requirements
Hydrostatic Pressure Test: The primary mandatory test. The shell side will be pressurized to 1.5 times the design pressure (as indicated by the dedicated Hydrostatic Test Weight of 5350 kg). The test pressure is held for a minimum specified duration while a thorough visual inspection is conducted.
Material Verification & Traceability: All pressure-retaining materials (SA-105, SA-106) must be supplied with valid Mill Test Certificates (MTCs).
Non-Destructive Examination (NDE): In accordance with TEMA R class requirements and the design code (typically ASME BPVC Sec. VIII), critical welds (e.g., shell longitudinal/seam welds, nozzle-to-shell welds) are subject to NDE. Methods include Radiographic Testing (RT) or Ultrasonic Testing (UT) for volumetric examination, and Liquid Penetrant Testing (PT) or Magnetic Particle Testing (MT) for surface examination.
