Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Engineered for uncompromising safety and visibility in extreme industrial environments. Our high-purity fused quartz tubes are the definitive solution for boiler, evaporator, and pressure vessel water level gauges. Featuring exceptional resistance to high temperatures, thermal shock, and chemical corrosion, these sight glass tubes provide unparalleled clarity and durability. Fully customizable in length, diameter, and wall thickness to meet your exact specifications. Upgrade your equipment’s reliability and operational safety.
Remarks：
- ayment method: By wire transfer or advance payment, depending on the quantity of the order.
- Delivery time: According to the order quantity.
- Transportation method: Sea freight or air freight, depending on the customer.
| Length (mm) | Diameter (mm) | Thickness (mm) | Length (in) | Diameter (in) | Thickness (in) |
|---|---|---|---|---|---|
| 200mm | 12mm | 2mm | 7.87" | 0.47" | 0.08" |
| 300mm | 12mm | 2mm | 11.81" | 0.47" | 0.08" |
| 400mm | 12mm | 2mm | 15.75" | 0.47" | 0.08" |
| 500mm | 12mm | 2mm | 19.69" | 0.47" | 0.08" |
| 600mm | 12mm | 2mm | 23.62" | 0.47" | 0.08" |
| 700mm | 12mm | 2mm | 27.56" | 0.47" | 0.08" |
| 800mm | 12mm | 2mm | 31.50" | 0.47" | 0.08" |
| 900mm | 12mm | 2mm | 35.43" | 0.47" | 0.08" |
| 1000mm | 12mm | 2mm | 39.37" | 0.47" | 0.08" |
| 200mm | 13mm | 2mm | 7.87" | 0.51" | 0.08" |
| 300mm | 13mm | 2mm | 11.81" | 0.51" | 0.08" |
| 400mm | 13mm | 2mm | 15.75" | 0.51" | 0.08" |
| 500mm | 13mm | 2mm | 19.69" | 0.51" | 0.08" |
| 600mm | 13mm | 2mm | 23.62" | 0.51" | 0.08" |
| 700mm | 13mm | 2mm | 27.56" | 0.51" | 0.08" |
| 800mm | 13mm | 2mm | 31.50" | 0.51" | 0.08" |
| 1000mm | 13mm | 2mm | 39.37" | 0.51" | 0.08" |
| 1200mm | 13mm | 2mm | 47.24" | 0.51" | 0.08" |
| 200mm | 18mm | 3mm | 7.87" | 0.71" | 0.12" |
| 300mm | 18mm | 3mm | 11.81" | 0.71" | 0.12" |
| 400mm | 18mm | 3mm | 15.75" | 0.71" | 0.12" |
| 500mm | 18mm | 3mm | 19.69" | 0.71" | 0.12" |
| 600mm | 18mm | 3mm | 23.62" | 0.71" | 0.12" |
| 700mm | 18mm | 3mm | 27.56" | 0.71" | 0.12" |
| 800mm | 18mm | 3mm | 31.50" | 0.71" | 0.12" |
| 1000mm | 18mm | 3mm | 39.37" | 0.71" | 0.12" |
| 1200mm | 18mm | 3mm | 47.24" | 0.71" | 0.12" |
| 1300mm | 18mm | 3mm | 51.18" | 0.71" | 0.12" |
| 200mm | 19mm | 3mm | 7.87" | 0.75" | 0.12" |
| 300mm | 19mm | 3mm | 11.81" | 0.75" | 0.12" |
| 400mm | 19mm | 3mm | 15.75" | 0.75" | 0.12" |
| 500mm | 19mm | 3mm | 19.69" | 0.75" | 0.12" |
| 600mm | 19mm | 3mm | 23.62" | 0.75" | 0.12" |
| 700mm | 19mm | 3mm | 27.56" | 0.75" | 0.12" |
| 800mm | 19mm | 3mm | 31.50" | 0.75" | 0.12" |
| 1000mm | 19mm | 3mm | 39.37" | 0.75" | 0.12" |
| 1100mm | 19mm | 3mm | 43.31" | 0.75" | 0.12" |
| 1200mm | 19mm | 3mm | 47.24" | 0.75" | 0.12" |
| 500mm | 20mm | 3mm | 19.69" | 0.79" | 0.12" |
| 800mm | 20mm | 3mm | 31.50" | 0.79" | 0.12" |
| 1200mm | 20mm | 3mm | 47.24" | 0.79" | 0.12" |
| Property Content | Property Values |
|---|---|
| SiO2 | 99.99% |
| Density | 2.2×10³ kg/cm³ |
| Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
| Tensile Strength | 4.8×10⁷ Pa (N/mm2) (7000 psi) |
| Compression Strength | >1.1×10⁹ Pa (160,000 psi) |
| Coefficient of Thermal Expansion | 5.5×10⁻⁷ cm/cm·°C (20°C-320°C) |
| Thermal Conductivity | 1.4 W/m·°C |
| Specific Heat | 670 J/kg·°C |
| Softening Point | 1730°C (3146°F) |
| Annealing Point | 1210°C (2210°F) |
| Strain Point | 1120°C (2048°F) |
| Work Temperature | 1200°C (2192°F) |
| Electrical Resistivity | 7×10⁷ ohm cm (350°C) |
| Size | Customized |
| Logo | Customized Logo Accept |
Exceptional Thermal & Pressure Stability
Reliably withstands the extreme temperatures and high pressures common in industrial boilers and steam systems. This robust construction prevents thermal shock fractures and ensures operational safety under demanding conditions.
Unrivaled Optical Clarity & Purity
Manufactured from ultra-high purity fused quartz, our tubes offer superior transparency for accurate, at-a-glance water level readings. The material resists clouding and discoloration over time, guaranteeing long-term visibility.
Superior Chemical Inertness
Highly resistant to corrosion from water, steam, acids, and most chemical agents found in industrial processes. This inertness prevents material degradation and etching, significantly extending the service life of the gauge.
Precision-Engineered for a Perfect Fit
Fully customizable in length, diameter, and wall thickness to match your exact equipment specifications. This ensures a seamless, leak-proof installation for both new OEM equipment and MRO replacement parts.
Application Scenario
Industrial Steam & Power Generation Boilers
The primary application is the direct visual monitoring of water levels in high-pressure boiler drums. The tube’s capacity to withstand extreme thermal stress and saturated steam ensures a reliable, safe reading, preventing catastrophic equipment failure from low-water conditions.
Chemical Processing Reactors & Vessels
Ideal for visually monitoring reactions, liquid levels, or phase separation inside sealed chemical reactors. The fused quartz’s superior chemical inertness prevents corrosion from aggressive acids, alkalis, and solvents, ensuring both process purity and gauge longevity.
High-Pressure Feedwater & Condensate Systems
Deployed in various auxiliary systems within power plants and industrial facilities, such as feedwater heaters, deaerators, and condensate return tanks. These applications require a durable sight glass that can handle high-pressure water and fluctuating temperatures without failing.
Oil & Gas Separators and Scrubbers
Used in high-pressure separators, scrubbers, and storage tanks to visually monitor the interface levels between oil, water, and gas. The robust construction and exceptional clarity are essential for efficient process control in demanding upstream and downstream operations.
Handle with care
Quartz glass products are made from valuable materials and must be handled gently to avoid collisions and falls.
Regular maintenance
The maintenance of quartz tubes must be performed regularly to ensure their long-term stable performance. Regularly check the connections, fixings, and mechanical vibrations of the quartz tubes to prevent abnormalities. The exterior of the quartz tubes is prone to contamination from dust and moisture, so they should be cleaned regularly.
Storage environmen
When storing quartz tubes, care should be taken to avoid exposure to mechanical vibrations, shocks, and excessively high temperatures. They should be kept in a dry, cool, and well-ventilated place, avoiding direct sunlight and high-temperature environments.
Quartz gauge glass offers a significant performance upgrade over Borosilicate, designed for more extreme conditions. Specifically, Quartz features a much higher temperature resistance (up to 1100°C) and superior thermal shock resistance due to its near-zero thermal expansion. Furthermore, its exceptional chemical inertness prevents corrosion and leaching, especially in high-purity water or aggressive chemical environments. This makes Quartz the essential choice for high-pressure, high-temperature, or chemically demanding applications where maximum safety and longevity are required.
To receive a fast and accurate quote, please provide us with the core specifications for your tube, including the Outer Diameter (OD), Wall Thickness (WT) or Inner Diameter (ID), and the overall Length (L), along with the required quantity. For applications with specific needs, please also include details on any required tolerances, special end finishes (such as fire-polished or ground), or the specific operating environment to ensure a perfect match for your equipment.
The maximum working pressure of a quartz tube is not a single, fixed value but is dynamically determined by its specific geometry and operating temperature. The rating is critically dependent on the ratio of the wall thickness to the outer diameter; a thicker wall and smaller diameter significantly increase its pressure-handling capability. For an accurate calculation, please provide us with your required OD, Wall Thickness, and Length, and our technical team will determine the precise safe working pressure for your specific application.
Laser Drilling of Quartz
Threaded Quartz Tube
External Thread on Quartz Tube
Internal Threaded Quartz Tube
Quartz Tube Slotted
Window on Quartz Tube
Angled Cut Quartz Tube
Quartz Tile
Quartz Tube with Window
Frequently asked questions
We specialize in the end-to-end manufacturing of high-purity quartz glass components. Our core product lines include:
Quartz Tubing & Rods: A wide range of diameters and specifications.
Quartz Plates & Discs: Precision-cut and polished for optical and industrial use.
Quartz Labware: A full suite of standard and custom glassware, including beakers, flasks, and boats.
Semiconductor-Grade Quartz: High-purity components like process tubes and carriers for semiconductor fabrication.
Custom Fabricated Components: We can produce complex parts tailored to your unique designs and specifications.
Yes. Custom fabrication is at the core of our business. With over a decade of specialized experience, we partner with companies to provide expert OEM/ODM services. Our capabilities include welding, grinding, drilling, polishing, bending, and other precision processing techniques to create components that meet your exact requirements.
Quality is paramount in our manufacturing process. We are an ISO 9001:2015 certified manufacturer, ensuring that our processes meet international quality management standards.Our products also undergo rigorous SGS testing for purity and performance. We use high-purity raw materials (up to 99.998% SiO2) to produce fused quartz and fused silica products with exceptional thermal stability, high-temperature resistance, and chemical inertness.
We've streamlined our process to be as efficient as possible:
Submit Your RFQ: Send us your technical drawings, specifications, and requirements via our website contact form or email.
Rapid Response: You can expect an initial response within minutes and detailed communication within half an hour.
Design & Proposal: We will deliver a detailed design proposal and a competitive quote within 24 hours.
Prototyping & Production: Upon approval, we move swiftly from prototyping to full-scale production to meet your deadlines.
Partnering with Aoxin Quartz offers several key advantages:
Proven Expertise: With 10+ years in the industry, we have the technical knowledge to tackle complex challenges.
One-Stop Solution: We manage the entire production process, from sourcing high-purity raw materials to fabricating and finishing complex components.
Competitive Value: Located in a major quartz production hub, we leverage an efficient supply chain and advanced manufacturing to offer exceptional quality at a competitive price point.
Dedicated Partnership: Over 90% of our clients become long-term partners. We are committed to your success through responsive service, reliable quality, and innovative solutions.
