Editorial Technical Reference

Tubular Heat Exchanger

This page explains how Tubular Heat Exchanger is classified within Food Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A heat transfer device using concentric tubes to exchange thermal energy between fluids in aseptic processing

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Tubular Heat Exchanger

Definition
The Tubular Heat Exchanger is a component used in aseptic processing lines, particularly within integrated fruit and vegetable processing systems. Its primary function is to transfer heat between a product stream and a heating or cooling medium, enabling precise temperature control while maintaining sterility. The exchanger consists of concentric tubes: one fluid flows through the inner tube, while the other flows through the annular space between the inner and outer tubes. Heat is transferred through the tube walls via conduction, and the fluids remain completely separated, preventing cross-contamination. This design is suitable for hygienic applications, as it allows for effective cleaning and sterilization. The unit is typically constructed from Stainless Steel 316L, which offers corrosion resistance and meets hygiene requirements. Key parameters include heat transfer area (1–100 m²), operating pressure (1.0–1.6 MPa), operating temperature (-10–150 °C), tube diameter (25–100 mm per ISO 4200), tube length (1000–6000 mm), surface roughness (0.4–0.8 µm Ra per ISO 4287), flow rate (1–50 m³/h), pressure drop (0.05–0.3 MPa), material grade (316L per ASTM A270), and weight (100–2000 kg). These values are reference ranges and must be verified for the specific model and application. The selection of a tubular heat exchanger depends on process requirements such as duty, flow rates, allowable pressure drop, and space constraints. It is essential to confirm that the chosen unit meets the required standards and is suitable for the intended aseptic process. Always consult the legal manufacturer or supplier to validate model-specific values and compliance with applicable standards.
Working Principle
The working principle relies on concentric tube arrangements. The product fluid flows through the inner tube, while the heating or cooling medium flows through the annular space between the inner and outer tubes. Heat is transferred from one fluid to the other through the tube wall by conduction. The direction of flow can be co-current or counter-current, affecting efficiency. The design ensures complete separation of fluids, preventing contamination. The heat transfer rate depends on factors such as temperature difference, flow velocity, tube material, and surface area. Proper flow rates and pressure drops must be maintained to achieve optimal performance.
Common Materials
Stainless Steel 316L
Technical Parameters
ParameterTypical rangeNotes & selection driver
Heat Transfer Area1–100 Select based on required duty and flow rates.
Operating Temperature-10–150 °CFor aseptic processing, ensure sterilization temperature is within range.
Tube Diameter25–100 mmAffects flow velocity and heat transfer coefficient.ISO 4200
Tube Length1000–6000 mmLonger tubes increase heat transfer area but may cause pressure drop.
Surface Roughness0.4–0.8 µm RaRequired for hygienic applications to prevent bacterial growth.ISO 4287
Flow Rate1–50 m³/hDetermine based on process requirements and pressure drop.
Pressure Drop0.05–0.3 MPaHigh pressure drop may require larger pump.
Material Grade316LStainless steel for corrosion resistance and hygiene.ASTM A270
Weight100–2000 kgConsider for installation and support structure.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Heat Exchange Tubes Part
    Primary surface for heat transfer between fluids
    Material: Stainless Steel 316L
  • Tube Sheets Part
    Support and secure tubes in position while providing sealing
    Material: Stainless Steel 316L
  • Shell Casing Part
    Enclosure containing the tube bundle and directing shell-side fluid flow
    Material: Stainless Steel 316L

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 100 bar (standard), 200+ bar with reinforced construction
flow rate: 0.5 to 50 m³/h per tube (scalable with multiple tubes)
temperature: -20°C to 200°C (typical), up to 300°C with special materials
slurry concentration: Up to 30% solids by volume (with appropriate tube diameter)
Media Compatibility
✓ Pharmaceutical buffer solutions ✓ Dairy products (milk, cream) ✓ High-purity water systems
Unsuitable: Highly abrasive slurries with sharp particles
Sizing Data Required
  • Required heat transfer duty (kW)
  • Inlet/outlet temperatures of both fluids
  • Fluid properties (viscosity, density, specific heat)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fouling and scaling
Cause: Accumulation of deposits (e.g., minerals, biological growth, corrosion products) on tube surfaces, reducing heat transfer efficiency and increasing pressure drop, often due to poor water treatment, inadequate filtration, or unsuitable operating temperatures.
Corrosion and pitting
Cause: Chemical attack on tube materials, leading to wall thinning or localized pits, typically caused by aggressive fluids (e.g., chlorides, acids), galvanic effects from dissimilar metals, or inadequate material selection for the service environment.
Maintenance Indicators
  • Significant drop in heat transfer efficiency (e.g., outlet temperatures deviating from design by more than 10%) or abnormal pressure differentials across tubes
  • Visible leaks at tube-to-tubesheet joints, tube ends, or shell, or audible hissing/whistling indicating fluid escape under pressure
Engineering Tips
  • Implement regular water treatment and filtration to control scaling and biological growth, coupled with periodic mechanical or chemical cleaning schedules based on fouling rates
  • Use corrosion-resistant materials (e.g., titanium, duplex stainless steel) for tubes in aggressive environments, and apply protective coatings or cathodic protection where feasible, while monitoring wall thickness with non-destructive testing

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 16812:2021 - Shell-and-tube heat exchangers ASME BPVC Section VIII Division 1 - Pressure vessel standards EN 13445-3:2021 - Unfired pressure vessels

Quoted from the published standard.

Manufacturing Precision
  • Tube-to-tubesheet joint: 0.25mm maximum gap
  • Tube bundle alignment: ±1.5mm perpendicularity tolerance
Quality Inspection
  • Hydrostatic pressure test: 1.5 times design pressure
  • Eddy current testing of tubes for wall thickness and defects

Manufacturers of Tubular Heat Exchanger

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

SAIDELI Industrial Solutions
Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What is the typical heat transfer area range for this tubular heat exchanger?

The heat transfer area is typically in the range of 1 to 100 m², but the exact value depends on the required duty and flow rates. You should confirm the specific area for your application with the manufacturer.

What operating pressure and temperature ranges are specified?

The operating pressure range is 1.0 to 1.6 MPa, tested. The operating temperature range is -10 to 150 °C. Ensure that your sterilization temperature falls within this range for aseptic processing.

What material is used for construction?

The material on file is Stainless Steel 316L, which is specified per ASTM A270. This grade provides corrosion resistance and is suitable for hygienic applications.

How should I verify that this heat exchanger meets my process requirements?

You should check the listed parameters such as tube diameter, length, surface roughness, flow rate, and pressure drop against your process needs. Always consult the legal manufacturer or supplier to confirm that the model-specific values and standards are appropriate for your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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