API 661 Induced Draft ASTM A214 Tube Aluminum Fin Air Cooler for Oil & Gas

Refinery

Engineered strictly according to API 661 and ASME Section VIII, Div. 1 standards, this heavy-duty air cooler is specifically designed as an identical, fully interchangeable replacement for the lubrication oil cooling circuit of the 390 turbine (Tag: 390EA04). Operating under an Induced Draft air cooler configuration, this industrial air cooler handles reliable thermal cooling of lubrication fluids at a design pressure of 15 bar and temperature of 100°C, ensuring optimal air cooler operational safety for oil refineries and petrochemical treatment facilities.

• Air Cooler Tube Bundle Core:
  • Air Cooler Tubes: 180 pieces of Φ38.1 mm (1-1/2") ASTM A214 precision resistance-welded carbon steel air cooler tubes. Strictly engineered using precision heat exchanger tubes to ensure high pressure-bearing integrity, avoiding commercial industrial piping.
  • Air Cooler Aluminum Fins: 433 fins per meter with 0.016" thickness, providing massive air cooler thermal dissipation area.
• Air Cooler Header & Manifold Assembly:
  • Air Cooler Tube Sheet: High-strength ASTM A516 Gr. 60 carbon steel plate for air cooler construction, precision machined.
  • Air Cooler Flanges: 8-inch 150 RF Weld-Neck flanges conforming to ASTM A105 for air cooler inlet/outlet process piping connections.
  • Air Cooler Plugs: Premium ASTM A105 tapered screw plugs with durable Soft Iron gaskets for reliable air cooler inspection access.

• Precision Mechanical Air Cooler Tube Expansion: All 180 ASTM A214 tubes undergo a controlled mechanical expanding process (Mandrinage) inside the ASTM A516 Gr.60 tube sheet to establish a high-strength, leak-proof air cooler joint capable of resisting severe thermal cycle stress.
• Rigid Air Cooler Fin Bonding: Specialized finning technology achieves a tightly bonded wrapping of Aluminum fins onto the steel air cooler tubes. This maintains structural stiffness at a precise 433 fins/m pitch, protecting optimal air cooler thermal contact efficiency and preventing degradation in harsh desert environments.
• Advanced Multi-Pass Air Cooler Geometry: Configured with a 12-pass internal partition layout using shaped baffles to maximize fluid velocity, enhance air cooler heat transfer coefficients, and prevent oil stagnation.
• Qualified Air Cooler Welding Operations: Header construction, full-penetration nozzle joints, and partition welding for this air cooler are performed by ASME-qualified welders, adhering strictly to approved WPS and PQR protocols.

• 100% Non-Destructive Testing (NDT) for Air Cooler: In accordance with the air cooler inspection plan, full radiographic testing (RT), visual testing (VT), and dye penetrant testing (PT) are executed on critical air cooler pressure-retaining welds.
• Mandatory Air Cooler Hydrostatic Test: Each assembled air cooler bundle must pass a rigorous hydro-test at the workshop according to ASME code (1.3x to 1.5x design pressure, up to 22.94 bar / 326.33 PSIG) to ensure structural air cooler integrity.
• Comprehensive Air Cooler Documentation Pack: Delivery includes a complete air cooler quality dossier featuring Material Test Reports (MTRs / Certificat de Ferrerie), certified WPS/PQR, NDT inspection records, and Hydro-test certifications signed by the authorized inspection agency.

• Algerian Market & Air Cooler Customs Compliance: Fully experienced in matching the strict documentation requirements of major North African operators like SONATRACH for air cooler imports. All shipping invoices, packing lists, and certificates of conformities are organized to support smooth FORM M tracking, banking LC terms, and air cooler customs clearance.
• Specialized Heavy-Duty Air Cooler Packing: The replacement air cooler components are treated with inner and outer anti-corrosion protection and delivered fully assembled. They are enclosed in robust, steel-reinforced seaworthy wooden crates designed according to SOG packing standards, preventing any air cooler fin distortion during maritime shipping and desert truck transit to remote fields like Hassi Messaoud or Bir Rebaa (BRN).
• Strict Schedule Adherence: Logistics and manufacturing are optimized to ensure safe delivery of the air cooler at the site within the tight contractual deadline of 6 months.