Description
Product Overview
Technical Glass Products presents a premium fused quartz tubing designed for exacting laboratory applications. Each tube measures 18 mm inner diameter and 20 mm outer diameter, providing a robust wall thickness that resists mechanical stress while maintaining a smooth interior surface for optimal fluid flow. The 48‑inch (approximately 1.22 m) length is ideal for a variety of capillary and micro‑fluidic setups, and the pack of two ensures you have a ready spare for uninterrupted experimentation.
The tubing is fabricated from 99.998 % pure silicon dioxide (SiO₂), guaranteeing minimal contamination and superior optical clarity. Its high purity translates to excellent chemical inertness, allowing use with aggressive acids, bases, and solvents without degradation. The material’s softening point of 1683 °C and operational temperature tolerance up to 1200 °C make it suitable for high‑temperature processes such as furnace loading, thermal gradient studies, and high‑temperature chromatography.
Dimensions are tightly controlled to meet industry standards for capillary tubes, and the product complies with ASTM and ISO specifications for laboratory glassware. The packaging dimensions (56 × 10 × 10 in) and lightweight design (approximately 1 lb per pack) facilitate easy storage and transport, while the clear labeling of model number 18X20‑2 count helps inventory management.
![[Product front view showing all components]](https://www.kelivo.store/wp-content/uploads/2026/07/597d84bfdba84750b7326b6a812940e6.jpg)
Usage
Designed for researchers, engineers, and technicians, this fused quartz tubing excels in environments where temperature stability and chemical purity are non‑negotiable. It is frequently employed in capillary gas chromatography (GC) columns, where the inert surface minimizes peak tailing and improves separation efficiency. In micro‑fluidic devices, the tube’s precise inner diameter enables reproducible flow rates, essential for quantitative assays and sensor development.
Beyond analytical chemistry, the tubing serves in high‑temperature furnace loading for material synthesis, allowing samples to be heated uniformly without reacting with the container. Its resistance to thermal shock also makes it suitable for rapid temperature cycling experiments, such as quenching studies or thermal conductivity measurements. The 48‑inch length provides flexibility for custom coil designs, enabling users to create compact heating elements or specialized reactors.
Because the tubing is chemically inert, it can be safely used with molten metals, glass‑forming melts, and semiconductor processing chemicals. Laboratories handling hazardous or corrosive substances benefit from the tube’s durability, reducing the risk of leaks or contamination. The pack of two ensures that one tube can be dedicated to a primary experiment while the second serves as a backup or for parallel testing.
Why Choose Us
Technical Glass Products has a legacy of over three decades in manufacturing high‑quality glassware for scientific research. Our fused quartz tubing undergoes rigorous quality control at each production stage, including dimensional verification, purity analysis, and thermal performance testing. This commitment to excellence guarantees that every tube meets the exacting standards required by advanced laboratories worldwide.
We source raw silica from vetted suppliers, ensuring that the final product achieves the 99.998 % SiO₂ purity level. The manufacturing process utilizes state‑of‑the‑art flame‑fusion techniques that eliminate internal stresses and produce a seamless, defect‑free tube. Each batch is accompanied by a detailed certificate of analysis, providing traceability and confidence for regulated environments such as pharmaceutical development and materials research.
Customer support is a cornerstone of our service. Our technical team is available to assist with product selection, installation guidance, and troubleshooting. Should you encounter any issues, we offer a responsive after‑sales service, including replacement options and expert advice to maximize the utility of your quartz tubing.
Choosing Technical Glass Products means investing in reliability, performance, and a partnership that supports your scientific goals from prototype to production.
Key Features
- High‑purity 99.998 % SiO₂ quartz ensures chemical inertness and minimal contamination.
- Thermal tolerance up to 1200 °C allows use in extreme temperature applications.
- Precise 18 mm ID × 20 mm OD dimensions provide consistent flow and easy integration into capillary systems.
- Durable 48‑inch length supplied in a pack of two for uninterrupted laboratory work.
- Dedicated technical support and comprehensive certification for reliable after‑sales service.
FAQ
What temperature range can the tubing safely withstand?
The fused quartz tubing is rated for continuous operation up to 1200 °C and has a softening point of 1683 °C, making it suitable for most high‑temperature laboratory processes.
Is the tubing compatible with aggressive chemicals?
Yes. With a purity of 99.998 % SiO₂, the tubing exhibits excellent resistance to acids, bases, solvents, and many corrosive substances, ensuring long‑term stability in harsh chemical environments.
Can I use the tubing for capillary chromatography?
Absolutely. The smooth interior surface and precise inner diameter provide low‑dead‑volume pathways, reducing peak tailing and improving separation efficiency in gas and liquid chromatography applications.
How do I store the tubing to maintain its quality?
Store the tubes in a clean, dry environment away from direct sunlight and extreme temperature fluctuations. Keeping them in their original packaging helps protect the ends from damage.
What warranty or support does Technical Glass Products offer?
We provide a limited warranty covering material defects and offer responsive technical assistance for installation, troubleshooting, and replacement inquiries.





Fused Quartz Tubing 28mm ID x 32mm OD 48in Technical Glass Capillary
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