Editorial Technical Reference

Heating Tube/Coil

This page explains how Heating Tube/Coil is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A tubular or coiled heating element that transfers thermal energy to fluids or surfaces within a heating jacket/coil assembly.

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Product Specifications

Technical details and manufacturing context for Heating Tube/Coil

Definition
The heating tube/coil is the core thermal transfer component within a heating jacket/coil system. It consists of a conductive metal tube or coiled pipe through which a heating medium (such as steam, thermal oil, or hot water) flows, or which contains an electric resistance element. Its primary function is to provide controlled, uniform heating to the outer surface of the jacket/coil, which in turn heats the vessel or pipe contents. The component is available in various materials, including stainless steel (e.g., 304, 316L), carbon steel, copper, Incoloy, and Inconel, selected based on corrosion resistance and temperature requirements. Key parameters include rated power (1–10 kW), voltage (220–380 V AC), tube diameter (8–20 mm), heated length (300–6000 mm), sheath material (304/316/Incoloy 800 per ASTM A312), maximum operating temperature (200–800 °C), and maximum operating pressure (1.0–1.6 MPa). Dimensional tolerances are ±0.05 mm on diameter and ±1.0 mm on length. Electrical safety is characterized by insulation resistance ≥100 MΩ at 500 V DC and dielectric strength of 1500–2500 V AC, both per IEC 60335-1. The enclosure rating is IP54–IP65 per IEC 60529. Weight ranges from 0.5 to 10 kg depending on length and diameter. These values are directory reference ranges; verify model-specific specifications with the legal manufacturer or supplier before procurement.
Working Principle
Thermal energy is generated internally via electric resistance or transferred from a flowing heating medium to the walls of the tube/coil. This heat is then conducted through the tube/coil wall and transferred via conduction and convection to the heating jacket/coil surface, creating a heated zone around the process vessel or pipe. The design ensures uniform heat distribution, and the choice of material and dimensions affects heat transfer efficiency and mechanical strength.
Common Materials
Stainless Steel (e.g., 304, 316L), Carbon Steel, Copper, Incoloy, Inconel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Power1–10 kWDetermines heating capacity; higher power for larger volumes.
Voltage220–380 V ACStandard industrial voltages; other voltages on request.
Tube Diameter8–20 mmAffects heat transfer area and mechanical strength.
Heated Length300–6000 mmCustom lengths available; longer lengths for larger tanks.
Sheath Material304/316/Incoloy 800Select based on corrosion resistance and temperature.ASTM A312
Max Operating Temperature200–800 °CDepends on sheath material; Incoloy for high temps.
Max Operating Pressure1.0–1.6 MPaBelow 1.0 MPa seat load insufficient.ISO 5208
Tolerance on Diameter±0.05 mmEnsures proper fit in jacket.
Tolerance on Length±1.0 mmCritical for installation alignment.
Insulation Resistance≥100 MΩAt 500 V DC; ensures safety.IEC 60335-1
Dielectric Strength1500–2500 V ACWithstands high voltage without breakdown.IEC 60335-1
IP RatingIP54–IP65Protection against dust and water jets.IEC 60529
Weight0.5–10 kgDepends on length and diameter.

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
  • Tube/Coil Body Part
    The primary structure that contains/transfers the heating medium or houses the electric element.
    Material: Stainless Steel, Carbon Steel, etc.
  • Connection Fitting/Flange Part
    Provides the interface for connecting the heating tube/coil to the heating medium supply/return lines or electrical terminals.
    Material: Stainless Steel
  • Bend/Coil Section Part
    The curved portion(s) of the tube that form the coil geometry, designed to maximize surface area and fit within the jacket.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Heating Tube/Coil.

heating tube

Applied To / Applications

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

Heating Jacket/Coil
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 150 bar (2175 psi)
flow rate: 0.5 to 10 m/s fluid velocity
temperature: -20°C to 400°C
slurry concentration: Up to 30% solids by weight
Media Compatibility
✓ Water/Glycol Solutions ✓ Thermal Oils ✓ Process Chemicals (non-corrosive)
Unsuitable: Highly Corrosive Acids (e.g., Hydrochloric Acid)
Sizing Data Required
  • Required Heat Transfer Rate (kW)
  • Fluid Properties (density, viscosity, specific heat)
  • Operating Temperature Differential (ΔT)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Repeated heating and cooling cycles causing expansion and contraction stresses, often exacerbated by rapid temperature changes or poor temperature control.
Corrosion and scaling
Cause: Chemical attack from process fluids or combustion gases, combined with mineral deposits that insulate and create hot spots, leading to localized overheating and material degradation.
Maintenance Indicators
  • Visible discoloration (blueing or dark spots) indicating localized overheating
  • Audible pinging or cracking noises during heating/cooling cycles suggesting thermal stress
Engineering Tips
  • Implement gradual ramp-up and cool-down procedures to minimize thermal shock and stress concentrations
  • Maintain proper water treatment and chemical balance in systems to prevent scaling and corrosion, and conduct regular infrared thermography inspections to detect hot spots early

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
ASTM A269/A269M - Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service CE Marking - Conformity with EU directives (e.g., Low Voltage Directive 2014/35/EU)

Quoted from the published standard.

Manufacturing Precision
  • Outer Diameter: +/-0.05mm
  • Wall Thickness: +/-10% of nominal thickness
Quality Inspection
  • Hydrostatic Pressure Test
  • Electrical Resistance and Insulation Resistance Test

Manufacturers of Heating Tube/Coil

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

JAYE INDUSTRY
Huizhou, Guangdong, CN
Founded 2009
CE UL MET ISO 9001:2015 +1
Also makes: Temperature Controller, Silicone Rubber, Thermocouple and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Jiangsu Sinton Group
Shanghai, CN
Founded 200120,000 sqm
EAC Ex CE ISO +1
Also makes: Electromagnetic Induction Heater, Signal Processor, Silicone Rubber and 6 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Electroplating Machine
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

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

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Frequently Asked Questions

What materials are available for heating tubes/coils?

Available materials include stainless steel (304, 316L), carbon steel, copper, Incoloy, and Inconel. Selection depends on corrosion resistance and temperature requirements.

What is the typical power range?

Rated power ranges from 1 to 10 kW, depending on the heating capacity needed for the application.

What are the dimensional tolerances?

Tolerance on diameter is ±0.05 mm, and on length is ±1.0 mm, ensuring proper fit and alignment in the jacket.

What safety standards apply?

Electrical safety follows IEC 60335-1, with insulation resistance ≥100 MΩ at 500 V DC and dielectric strength of 1500–2500 V AC. Enclosure rating is IP54–IP65 per IEC 60529.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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