Heat Exchanger Coils for Re-Heaters | Industrial Components

Product Specifications

Technical details and manufacturing context for Heat Exchanger Coils

Definition

Heat exchanger coils are tubular components used in re-heater systems to transfer thermal energy between two fluid streams. In typical re-heater applications, these coils recover waste heat from exhaust gases or process streams to preheat incoming air, steam, or other working fluids, thereby improving overall thermal efficiency and reducing energy consumption in industrial processes. The coils are available in various configurations and materials, with design parameters that must be verified for each specific application. Common materials include stainless steel, copper alloy, and carbon steel. Key parameters include tube outer diameter (12–38 mm), wall thickness (1.0–3.0 mm), coil diameter (200–2000 mm), coil length (1000–12000 mm), heat transfer area (0.5–50 m²), design temperature (-40 to 400 °C), design pressure (1.0–6.4 MPa), tube pitch (20–60 mm), bend radius (1.5–3.0 × OD), surface roughness (0.8–3.2 μm Ra), material grade (304/316L), and weight (10–500 kg). These values are reference ranges and must be confirmed with the manufacturer for the actual model. Relevant standards include ISO 1127 for tube dimensions, EN 13445 for pressure vessels, ASTM A312 for stainless steel pipe, and ISO 4287 for surface texture. Always verify compliance with applicable standards and the specific requirements of your installation.

Working Principle

Heat exchanger coils operate on the principle of conductive and convective heat transfer through tube walls. Hot fluid flows through the coil tubes while cooler fluid circulates around the external surfaces, creating a temperature gradient that drives thermal energy exchange. The coiled configuration maximizes surface area within a compact space, enhancing heat transfer efficiency through turbulent flow patterns and extended contact time between fluids.

Common Materials

Stainless Steel, Copper Alloy, Carbon Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tube Outer Diameter	12–38 mm	Determines heat transfer area and pressure drop.ISO 1127
Wall Thickness	1.0–3.0 mm	Affects pressure rating and corrosion allowance.ISO 1127
Coil Diameter	200–2000 mm	Must fit within vessel or duct dimensions.
Coil Length	1000–12000 mm	Longer coils increase heat transfer but raise pressure drop.
Heat Transfer Area	0.5–50 m²	Directly related to thermal duty.
Design Temperature	-40–400 °C	Material selection depends on this range.EN 13445
Design Pressure	1.0–6.4 MPa	Higher pressure requires thicker walls.EN 13445
Tube Pitch	20–60 mm	Affects bundle geometry and cleaning access.
Bend Radius	1.5–3.0 × OD	Smaller radius increases stress and thinning.
Surface Roughness	0.8–3.2 μm Ra	Smoother surfaces reduce fouling.ISO 4287
Material Grade	304/316L	316L for higher corrosion resistance.ASTM A312
Weight	10–500 kg	Affects handling 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

Coil Tubes Part
Primary conduits for fluid flow and heat transfer through tube walls

Material: Stainless Steel/Copper Alloy
Tube Bends Part
Curved sections connecting straight tube runs to form coil configuration

Material: Same as tube material
Tube Supports
Structural elements maintaining coil geometry and preventing vibration

Material: Carbon Steel/Stainless Steel
Headers/Manifolds
Distribution and collection points for fluid entering/exiting coil circuits

Material: Carbon Steel/Stainless Steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Re-heater

View system integration details

Manufacturers of Heat Exchanger Coils

Manufacturer profiles associated with Heat Exchanger Coils.

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Frequently Asked Questions

What materials are available for heat exchanger coils?

Common materials include stainless steel, copper alloy, and carbon steel. The specific grade (e.g., 304/316L) must be selected based on corrosion resistance and temperature requirements, and confirmed with the manufacturer.

What are typical design pressure and temperature ranges?

Design temperature ranges from -40 to 400 °C, and design pressure from 1.0 to 6.4 MPa. These values are reference ranges; the actual design must be verified for your application.

How do I determine the required heat transfer area?

Heat transfer area depends on the thermal duty, fluid temperatures, and flow rates. The reference range is 0.5 to 50 m². Consult a thermal engineer to calculate the required area for your process.

What standards apply to heat exchanger coils?

Relevant standards include ISO 1127 for tube dimensions, EN 13445 for pressure vessel design, ASTM A312 for stainless steel pipe, and ISO 4287 for surface roughness. Verify compliance with the manufacturer.

Data Basis

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Preliminary Technical Classification

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pressure:	Up to 1500 psi (103 bar)
flow rate:	0.5 to 50 m³/h per coil
temperature:	-40°C to 400°C
slurry concentration:	Up to 30% solids by weight

Heat Exchanger Coils

Product Specifications

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Application Fit & Sizing Matrix

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Compliance & Manufacturing Standards