ASME U Stamp Pressure Vessel Reactor Tube Bundle for Hydrogen Service

YUHONG High-Temperature CO-Shift Reactor (HT CO-Shift Reactor) is a critical, heavy-duty pressure vessel custom-engineered. Designed and certified in strict accordance with ASME Section VIII, Division 1 (2015 Edition) with official "U" Stamp certification , this reactor is purpose-built to handle severe Hydrogen Service (H2 Service) under high-pressure and high-temperature environments.

High-Temperature CO-Shift Reactor - Material Specifications

• Shell & Elliptical Heads: ASME SA-387 Grade 11 Class 2 (1 1 Cr - 1 Mo alloy steel)
• Nozzle Flanges & Forgings: ASME SA-182 Grade F11 Class 2
• Internal Bolting: ASME SA-193 Grade B16

High-Temperature CO-Shift Reactor - Internal Bed & Packing

• Top Restricting/Protection Layer (150 mm): Inert Alumina Ceramic Balls
• Core Reaction Bed (3,600 mm): Shift Catalyst (Packed Density: ~ 4, 140 kg/m3)
• Bottom Multi-Stage Support Bed (575 mm Total)
• Fines Retention: Integrated with a heavy-duty 117 Mesh Screen
• Mechanical Safety Margin: The bottom shell and support structures are engineered with anadditional 3.1 kg/cm pressure allowance

High-Temperature CO-Shift Reactor - Testing Standards

• 100% Non-Destructive Testing (NDT): All pressure-retaining butt welds. Attachment fillet welds are verified via 100% Magnetic Particle (MT) or Dye Penetrant Testing (PT).

• Advanced Heat Treatment: Elliptical heads are fully Normalized & Tempered post-forming. The fully assembled vessel undergoes rigorous shop Post-Weld Heat Treatment (PWHT).

• Toughness Verification: Standard Charpy V-Notch Impact Testing.

• Traceable ITP Compliance: A dedicated Production Test Coupon is installed inside the vessel during fabrication.

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