API 660 Shell and Tube Heat Exchanger for Oil & Gas

What is API 660?

API 660 is the American Petroleum Institute's standard for shell-and-tube heat exchangers in the oil, gas, and petrochemical industries, specifying design, materials, testing, and inspection requirements to ensure safety and reliability in high-pressure, high-temperature, and corrosive environments. It aligns with ASME BPVC and ISO 16812, mandating robust construction, corrosion-resistant materials (like stainless steel), and strict quality control (including hydrostatic testing and NDE) for critical applications in refineries, gas plants, and offshore platforms. Compliance with API 660 signals industry-proven durability, reducing downtime and operational risks.

Overview

Our Shell & Tube Heat Exchanger is designed and manufactured in full compliance with API 660 standards, ensuring reliability, durability, and high thermal performance for the most demanding industrial applications. This exchanger is ideal for oil & gas, petrochemical, refinery, power generation, and process industries where efficient heat transfer between fluids is critical.

Key Features

• Design Standard: API 660 (Shell-and-Tube Heat Exchangers for General Refinery Services)
• Construction: Robust design for high-pressure and high-temperature applications
• Heat Transfer Efficiency: Optimized thermal design for maximum energy recovery
• Versatile Configurations: Available in fixed tube sheet, floating head, and U-tube designs

Technical Specifications

• Design Code: API 660, ASME Section VIII, Div. 1
• Design Pressure: Up to 150 bar (2175 psi) or as per client requirement
• Design Temperature: -29°C to +400°C (-20°F to +750°F)
• Tube Bundle: Removable for easy maintenance and cleaning
• Tube Size & Layout:
  • Diameter: 12.7 mm (½”), 19.05 mm (¾”), 25.4 mm (1”)
  • Layout: Triangular (30°), Square (90°) or Rotated Square (45°)
• Shell Diameter: 150 mm to 2000 mm (6” to 80”)
• Pass Arrangement: Single pass or multi-pass (as per process requirement)
• Baffles: Segmental or double segmental baffles for optimized flow

Materials of Construction

• Shell: Carbon Steel (ASTM A516 Gr.70), Stainless Steel (304/316/321), Alloy Steel, Duplex Steel
• Tubes:
  • Carbon Steel: ASTM A179 / A210
  • Stainless Steel: ASTM A249 / A213 (304, 316, 321)
  • Copper Alloys: Admiralty Brass, Cu-Ni (90/10, 70/30)
  • Exotic Alloys: Inconel, Hastelloy, Monel (for corrosive services)
• Tube Sheets: Carbon Steel, Stainless Steel, Clad or Overlay as per corrosion resistance requirements
• Gaskets: Spiral Wound, Metal Jacketed, or Ring-Type Joint (RTJ)
• Nozzles & Flanges: ASME B16.5 / B16.47

Applications

• Oil & Gas Industry – Crude oil heating, inter-stage cooling
• Petrochemical Plants – Condensers and reboilers
• Power Plants – Steam condensers, feedwater heaters
• Process Industries – Heat recovery systems, cooling water exchangers

Why Choose Our API 660 Heat Exchanger?

• API 660 Compliance for guaranteed safety and reliability
• Custom Design Options to match process and site conditions
• Premium Materials for superior corrosion and temperature resistance
• Efficient Thermal Performance reducing energy costs
• Comprehensive Testing: Hydrostatic, Radiographic, and Performance Testing

Quality & Standards

Our manufacturing facility adheres to:

• API 660
• ASME Section VIII, Div. 1
• TEMA (Tubular Exchanger Manufacturers Association) Standards
• ISO 9001:2015 Quality Management

Optional Accessories

• Channel covers with quick-opening closures
• Tube bundle pulling devices
• Insulation jackets for thermal efficiency
• Corrosion-resistant coatings and linings

Order & Inquiry

For custom design, pricing, and lead times, please contact us with:

• Process data sheet
• Fluid properties (hot & cold side)
• Design pressure & temperature
• Flow rates & allowable pressure drop