Tube-in-Tube

Tube-in-tube exchangers feature concentric tubes with product in the inner tube and service fluid in the annulus, providing true counter-flow and no cross-contamination risk. 3A, ASME BPE, and EHEDG compliant designs with polished surfaces (Ra = 0.8 µm or better) support full CIP/SIP, drainability, and sanitary integrity in demanding hygienic applications.

Engineered for superior heat transfer in viscous, particulate-laden, or sensitive products, these units excel in food, dairy, beverage, and pharmaceutical processing where hygiene, gentle handling, and thermal precision are critical.

Constructed from high-grade 316L stainless steel (or higher alloys), they deliver exceptional durability and cleanability. The compact, modular design suits space-constrained facilities while maintaining high performance and energy efficiency.

Our commitment to sanitary excellence ensures compliance with the strictest regulatory standards. Rely on consistent thermal control and product integrity with equipment designed specifically for your hygienic process needs.

  • Multiple Designs: Monotube, multitube, hairpin, corrugated, dimpled, removable, and welded configurations.
  • Available Capacities: From lab-scale to large production units, handling low to very high viscosity products.
  • High Quality: 316L stainless steel, electropolished finishes, double tubesheets, and sanitary fittings.
  • Efficiency: True counter-flow, enhanced surfaces, and optimized velocities for maximum heat transfer.
  • Custom Fabrication Any length, diameter, tube geometry, or connection type with full 3A/ASME BPE compliance.
  • Materials Superior corrosion resistance for acids, caustics, high-temperature processes, and aggressive CIP.
Sanitary:
Food, Dairy & Beverage
  • 3A & EHEDG Compliant
  • Polished & Drainable
  • Full CIP/SIP Capability
Sanitary Tube-in-Tube Heat Exchanger
Monotube / Hairpin:
Particulates & Viscous
  • Large Particle Handling
  • Easy Mechanical Cleaning
  • Modular & Extendable
Monotube Hairpin Heat Exchanger
Multitube:
Higher Capacity Sanitary
  • Multiple Inner Tubes
  • Compact Footprint
  • High Heat Transfer Rates
Multitube Tube-in-Tube Heat Exchanger

Tube-in-Tube Exchangers

Applications

The following is a list of typical processes that require tube-in-tube heat exchangers: product pasteurization, sterilization, aseptic cooling, viscous product heating/cooling, slurry processing, fruit/vegetable purees, dairy products, sauces, beverages, pharmaceutical intermediate cooling/heating, and high-hygiene heat recovery.

Sizes & Materials

Tube-in-tube units feature 3A, ASME BPE, and EHEDG compliant designs, sanitary polished 316L stainless steel (or higher), electropolished finishes, double tubesheets, and hygienic fittings. Inner tube diameters from 1" to 6"+, annular gaps optimized for velocity, lengths up to 20 ft per section, and modular configurations for virtually any duty. Enhanced surfaces (corrugated, dimpled) boost turbulence and cleanability in fouling or viscous services.

Available in monotube, multitube, hairpin, removable, and welded styles with full compliance to sanitary and pressure vessel codes. Custom lengths, connections, supports, and insulation packages ensure perfect integration in hygienic production lines.

Monotube & Hairpin Exchangers

Monotube and hairpin designs excel with large particulates, fibers, and high-viscosity products. Fully drainable and mechanically cleanable, they are ideal for whole fruit, chunky sauces, soups, and slurries requiring gentle handling and reliable performance.

Multitube Exchangers

Multitube configurations provide higher heat transfer area in a compact footprint. Best for lower viscosity hygienic fluids with small particulates, offering excellent thermal efficiency and full CIP/SIP capability in dairy, beverage, and pharmaceutical lines.

Some Tube-in-Tube Applications


Common FAQs

With decades of sanitary fabrication expertise, tube-in-tube heat exchangers deliver unmatched hygiene, thermal performance, and product integrity in food, dairy, beverage, and pharma systems. Built to 3A, ASME BPE, and EHEDG standards with polished stainless and no cross-contamination risk, they ensure reliable, high-efficiency heat transfer with full CIP/SIP and minimal maintenance.


Offered in monotube, multitube, hairpin, corrugated, and sanitary configurations, tube-in-tube exchangers provide key hygienic advantages:

  • Hygiene:3A/EHEDG compliant, polished surfaces, full CIP/SIP, and no cross-contamination.
  • Thermal Efficiency:True counter-flow maximizes heat transfer even with viscous or fouling products.
  • Versatility:Handles particulates, high viscosity, and sensitive products with gentle treatment.
  • Serviceability:Removable designs and straight tubes allow easy inspection and mechanical cleaning.

Tube-in-tube exchangers transfer heat between two fluids—one flowing through the inner tube (typically product), the other through the annular space (service fluid)—via conduction through the tube wall. Key features include:

  • Concentric Tubes:Inner tube carries product; annulus carries service fluid for true counter-flow.
  • Sanitary Design:Polished surfaces, hygienic fittings, double tubesheets prevent mixing.
  • Heat Transfer:Counter-flow maximizes ΔT; enhanced surfaces increase turbulence.
  • Support Systems:Supports, insulation, and modular sections ensure stability and performance.

Tube-in-tube exchangers are the hygienic standard for viscous, particulate, or sensitive products in food, dairy, beverage, and pharma. They provide true counter-flow, no risk of cross-contamination, full cleanability, and gentle product handling. With customizable sanitary designs and expert support, they deliver reliable, regulatory-compliant performance for critical thermal processes.

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