Alumina Double Bore Tubes

Item # Inner Diameter Outer Diameter
ADB503 0.005 in 0.032 in
ADB504 0.010 in 0.047 in
ADB505 0.016 in 0.062 in
ADB506 0.010 in 0.047 in
ADB507 0.025 in 0.093 in
ADB508 0.020 in 0.125 in
ADB509 0.032 in 0.125 in
ADB510 0.040 in 0.125 in
ADB511 0.032 in 0.156 in
ADB512 0.040 in 0.156 in
ADB512-1 0.047 in 0.156 in
ADB513 0.032 in 0.188 in
ADB514 0.040 in 0.188 in
ADB515 0.047 in 0.188 in
ADB516 0.062 in 0.188 in
ADB517 0.050 in 0.200 in
ADB518 0.040 in 0.250 in
ADB519 0.062 in 0.250 in
ADB520 0.078 in 0.250 in
ADB521 0.093 in 0.250 in
ADB522 0.062 in 0.312 in
ADB523 0.078 in 0.312 in
ADB524 0.125 in 0.375 in
ADB525 0.156 in 0.500 in
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Applications of Alumina Double Bore Tubes in Specialized Industries

Alumina double bore tubes, engineered from high-purity aluminum oxide, are critical components in industries requiring precision, durability, and resistance to extreme conditions. At LSP Industrial Ceramics, we provide custom alumina double bore tubes designed for specialized applications, offering unmatched performance in harsh environments. With their unique dual-channel design, these alumina ceramic tubes are ideal for advanced industrial and laboratory setups. Let’s explore the key uses of alumina double bore tubes and why LSP Ceramics is your trusted alumina tube supplier.

What Are Alumina Double Bore Tubes?

Alumina double bore tubes are alumina ceramic tubes featuring two parallel channels within a single tube, made from high-purity aluminum oxide (Al₂O₃). This design allows for the simultaneous passage of multiple media or components, while the alumina ceramic material ensures resistance to high temperatures, corrosion, and electrical conductivity. At LSP Industrial Ceramics, our alumina double bore tubes are available in purities of 99%, 99.5%, and 99.7%, tailored to your specific needs.

Key Uses of Alumina Double Bore Tubes

  1. Thermocouple Protection in High-Temperature Environments
  2. Electrical Insulation for Dual-Channel Systems
  3. Fluid and Gas Separation in Controlled Environments
  4. Vacuum and High-Pressure Systems

Material Characteristics That Support Dual-Channel Performance

High-purity alumina provides a combination of thermal endurance, dielectric strength, and chemical resistance that supports the performance of double bore tubes. The ceramic structure maintains stability at temperatures approaching 1800°C and resists degradation when exposed to acids, halogens, or aggressive process media. Low porosity reduces the risk of permeation, while the dual-channel geometry maintains consistent spacing and isolation between pathways.

Typical Uses in Industrial and Scientific Systems

Double bore alumina tubes are commonly used in thermocouple assemblies where two sensing elements must be isolated within a single protective housing. Electrical systems use them to separate conductors while maintaining insulation and mechanical protection. In laboratory and analytical environments, the tubes support controlled routing of gases or liquids in compact systems. Heating assemblies and thermal transfer equipment use double bore tubes to manage temperature gradients while maintaining structural integrity.

Advantages of the Double Bore Configuration

The dual-channel design provides two isolated pathways within a single ceramic tube, reducing assembly complexity and improving alignment. This configuration supports applications where parallel routing is required without increasing component count. Compared to single bore tubes, double bore designs offer improved organization of conductors or media and support more efficient use of space. The ceramic structure reduces maintenance requirements and supports long service life in demanding environments.

FAQ

How Are Alumina Double Bore Tubes Used in Dual-Sensor Systems?

Double bore tubes allow two sensing elements to be routed in parallel while remaining isolated from each other. This supports accurate measurement and reduces interference in thermal or analytical systems.

Why Choose a Double Bore Tube Instead of Two Single Bore Tubes?

A double bore tube consolidates two pathways into one component, improving alignment, reducing installation time, and minimizing space requirements. It also provides consistent spacing between channels.

What Makes Alumina Suitable for Multi-Channel Insulation?

Alumina provides strong dielectric properties, high thermal stability, and resistance to corrosive media. These characteristics support reliable insulation and protection for dual-channel assemblies.

Can Double Bore Tubes Be Used for Fluid or Gas Separation?

Yes. The parallel bores allow controlled routing of gases or liquids while maintaining isolation. This supports laboratory systems, analytical instruments, and controlled-environment processes.