Coil Tubing: Temperature Range -40°C to 300°C

Component Specifications

Definition

Coil tubing refers to a continuous length of metal tubing, typically formed into a helical or serpentine configuration, that serves as the primary heat exchange element in heating coils. It functions by circulating a thermal fluid (such as water, steam, oil, or refrigerant) through its interior, transferring thermal energy to or from the surrounding environment via conduction and convection. The tubing's geometry maximizes surface area contact with air or process fluids, enhancing heat transfer efficiency while maintaining structural integrity under thermal expansion and pressure variations.

Working Principle

Coil tubing operates on the principles of conductive and convective heat transfer. A thermal medium flows through the tubing, transferring heat through the tube wall to the external environment (in heating applications) or absorbing heat from it (in cooling applications). The coiled design increases turbulence in both the internal fluid and external air/fluid flow, improving heat exchange rates. Thermal energy transfer is governed by temperature differentials, flow rates, and the thermal conductivity of the tube material.

Materials

Typically made from corrosion-resistant metals: copper (C12200, C11000), stainless steel (304, 316L), carbon steel (ASTM A179), or aluminum alloys (6061, 6063). Material selection depends on thermal conductivity requirements, corrosion resistance, pressure ratings, and compatibility with thermal fluids.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tube OD	6.35 mm to 50.8 mm
Coil Diameter	150 mm to 1200 mm
Surface Finish	Smooth or enhanced (finned)
Wall Thickness	0.7 mm to 2.5 mm
Working Pressure	Up to 3.5 MPa
Temperature Range	-40°C to 300°C

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

Standards

ASME B31.1, ASTM B88, DIN EN 12735

Parent Products

This component is used in the following industrial products

Heating Coils

Heat transfer components within asphalt tanks that maintain asphalt viscosity through thermal energy exchange.

View Product Details

Engineering Analysis

Risks & Mitigation

Corrosion from aggressive thermal fluids
Thermal fatigue due to cycling
Pressure-induced failure if ratings are exceeded
Fouling reducing heat transfer efficiency
Improper installation causing leaks or stress

FMEA Triads

Trigger: Corrosive fluid interaction with tube material
Failure: Leakage or rupture leading to system shutdown
Mitigation: Use corrosion-resistant materials (e.g., stainless steel), apply protective coatings, implement fluid treatment, and conduct regular inspections.

Trigger: Thermal cycling beyond design limits
Failure: Cracking or deformation reducing efficiency
Mitigation: Design for thermal expansion, use flexible connections, control temperature gradients, and follow operational guidelines.

Trigger: Excessive pressure from pump or valve failure
Failure: Burst tubing causing safety hazards
Mitigation: Install pressure relief valves, use tubing with adequate pressure ratings, monitor system pressure, and train operators on safe limits.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm on tube OD, ±5% on coil dimensions per ISO 9001

Test Method

Hydrostatic pressure testing per ASME B31.1, leak testing with helium or air, non-destructive testing (e.g., ultrasonic) for defects

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Coil Tubing

2 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.

Anhui Tianyu Petroleum Equipment Manufacturing Co., Ltd.

Xuancheng, Anhui, CN

Also makes: Pump Fluid End (Wet End), Check Valves, Gate/Flow Control and 2 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Coil tubing stripper rubber”
View source page ↗ fluidendpumpparts.com · checked 2026-09-03

View profile Send enquiry

Pace Pneumatics

Ningbo, Zhejiang, CN

Also makes: Lubrication System, Flow Control Valve, Speed Controller and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “PU Coil Tubing Size”
View source page ↗ china-pace.com · checked 2026-08-28

View profile Send enquiry

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

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What are the main advantages of coil tubing in heating applications?

Coil tubing provides high heat transfer efficiency due to increased surface area, compact design for space savings, flexibility in configuration for custom layouts, and durability under thermal cycling and pressure variations.

How do I select the right material for coil tubing?

Consider the thermal fluid's corrosiveness (e.g., stainless steel for corrosive fluids), required thermal conductivity (copper for high efficiency), pressure and temperature ratings, and cost. Consult industry standards like ASME B31.1 for guidance.

What maintenance is required for coil tubing?

Regular inspection for corrosion, scaling, or leaks; cleaning to remove deposits that reduce efficiency (using chemical or mechanical methods); and pressure testing to ensure integrity. Follow manufacturer recommendations and industry maintenance schedules.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Coil Tubing