- Home
- /
- Types
- /
- Quartz Tube
- /
- Double Layer Quartz Glass...
Double Layer Quartz Glass Tube for Lab Condensation -TOQUARTZ®
Features an inner quartz tube with an outer cooling jacket welded to the exterior wall, equipped with water inlet and outlet ports for efficient cooling of liquids within the inner tube.
Exceptional light transmission, high temperature resistance, superior chemical resistance, and excellent insulation properties.
Key Features of Double Layer Quartz Glass Tube
TOQUARTZ® double-layer quartz glass tubes are engineered for precision laboratory applications where temperature control and chemical resistance are critical, featuring water inlet and outlet ports for efficient thermal management.
High Temperature Resistance
TOQUARTZ® double-layer quartz glass tubes can withstand continuous operation at temperatures up to 1100°C, with short-term exposure capability up to 1450°C. The low thermal expansion coefficient allows these sleeves to endure rapid temperature fluctuations without cracking or deformation.
Superior Chemical Resistance
With exceptional resistance to almost all acids (except hydrofluoric acid), TOQUARTZ® quartz double-layer quartz glass tubes maintain chemical stability even at elevated temperatures. This makes them ideal for aggressive chemical environments in laboratory and industrial applications.
Optical Clarity
TOQUARTZ® high-purity quartz (≥99.98% SiO₂, max. up to 99.995%) provides exceptional transparency, allowing clear observation of reactions and processes occurring within the inner tube. This transparency is maintained even after prolonged exposure to high temperatures.

- Extreme Heat Resistance
- Optimal Optical Clarity
- Strong Chemical Resistance
Available Dimensions of Double Layer Quartz Glass Tube
Parameter | Standard Range | Custom Range |
Inner Diameter (ID) | 20mm, 25mm, 30mm | 16mm – 40mm |
Outer Diameter (OD) | 25mm, 30mm, 35mm | 20mm – 50mm |
Wall Thickness | 1.5mm, 2.0mm, 2.5mm | 1.0mm – 3.0mm |
Length | 200mm, 300mm, 400mm | 100mm – 1000mm |
Inlet/Outlet Diameter | 4mm, 6mm, 8mm | 3mm – 10mm |
Connection Type | Standard | 24/40 ground glass joints |
Solving Challenges with Double Layer Quartz Glass Tube
Double Layer Quartz Glass Tube for Analytical Chemistry Labs
Traditional glass condensers often crack under thermal stress and lack chemical resistance needed for aggressive reagents.
Key Advantages
- Precision-Welded Water Jacket Design Eliminates Thermal Fracture Risk
- Ultra-Thin Condensing Wall Enhances Thermal Exchange Efficiency
- Aggressive Reagent Compatibility for Non-HF Acid Systems
TOQUARTZ® solution
A German analytical instrument manufacturer reported frequent breakage of borosilicate glass condensers when exposed to rapid temperature changes, resulting in approximately 10% rejection rate.
TOQUARTZ double-layer quartz glass tubes eliminated these failures with their superior thermal stability and precision tolerance of ±0.1mm.
Double Layer Quartz Glass Tube for High-Temperature Research Applications
Key Advantages
- Controlled Thermal Boundary Layer for Stable Heat Flux Dissipation
- Heat Channel Geometry Optimized for Reactive Process Uniformity
- Safety-Tier Design with Controlled Rupture Zone
TOQUARTZ® solution
A Tokyo research lab faced repeated cooling jacket failures during 1200°C vacuum reactions, risking safety and data loss.
TOQUARTZ delivered double-layer quartz glass tubes with bonded structure and thermal shock resistance. It operated 365+ hours fault-free, securing repeat orders and client approval.
Double Layer Quartz Glass Tube for Custom Laboratory Equipment Integration
Key Advantages
- Customizable Joint Interfaces for Multi-Spec Port Matching
- Asymmetric Jacket Design for Space-Constrained Layouts
- Co-Engineering Support with CAD/DWG Native Compatibility
TOQUARTZ® solution
A Canadian scientific equipment manufacturer needed a reliable partner to supply 10-15 custom-sized quartz condenser tubes monthly but faced challenges with their previous supplier's lack of drawing support and slow response during modification stages.
TOQUARTZ's engineering team provided comprehensive technical support, rapid design iterations, and consistent monthly deliveries, establishing a long-term partnership.
Customization Services for
TOQUARTZ® Double Layer Quartz Glass Tube
Our engineering team works closely with you to design and manufacture cooling tubes
that perfectly integrate with your laboratory equipment and processes.
Customization Capabilities for Double Layer Quartz Glass Tube
- Dimensional Customization
- Connection Adaptations
- Complex Geometries
TOQUARTZ® Custom Design Process
Consultation & Requirements
Our engineers discuss your specific needs, application environment, and performance requirements.
Design & Prototyping
We develop detailed technical drawings and create prototypes for your approval.
Manufacturing & Quality Control
Production begins with rigorous quality checks throughout the manufacturing process.
Delivery & Support
Rapid shipping with comprehensive documentation and ongoing technical support.
Usage Guide for Double Layer Quartz Glass Tube
Handling Precautions
Handle double-layer quartz glass tubes with care to avoid impact or dropping. Despite their high temperature resistance, quartz is susceptible to mechanical shock. Always use gloves when handling to prevent fingerprints and contamination, especially for high-temperature applications.
Cleaning and Preparation
Before high-temperature use, thoroughly clean the cooling tube to remove any contaminants. Use fine cotton gloves during handling to prevent direct skin contact. For cleaning, use mild detergent solutions or specialized laboratory cleaning agents, followed by thorough rinsing with deionized water.
Temperature Limitations
Do not exceed the maximum operating temperature of 1100°C for continuous use or 1450°C for short-term exposure. Exceeding these limits may cause softening and deformation of the quartz material, compromising the integrity of the cooling tube.
Material Compatibility
Quartz is an acidic material. At high temperatures, strictly avoid contact with alkaline substances such as water glass, asbestos, or potassium/sodium compounds, as these will significantly degrade performance and potentially cause failure. Always verify chemical compatibility before use.
- Cooling System Setup Recommendations
Connect water inlet to the bottom port and outlet to the top port for optimal flow dynamics.
Maintain water flow rate between 0.5-2.0 L/min depending on cooling requirements.
For high-temperature applications, gradually introduce cooling water to prevent thermal shock.
Use filtered water to prevent mineral deposits that could reduce cooling efficiency over time.
Periodically inspect connections for leaks and ensure secure attachment to prevent water leakage.
Need Customization Sevices for Double Layer Quartz Glass Tube?
Why Partner with TOQUARTZ
Direct Factory Advantage
As a direct manufacturer, we can cut out the numerous intermediate links.
Engineering Expertise
Technical team guides clients from material selection to design optimization, translating specs into deliverables.
Flexible Manufacturing
Handling standard & custom orders via small-batch expertise and prototyping rigor to meet urgent deadlines.
Quality
Assurance
Pre-shipment 3-step validation:
1. dimensional accuracy,
2. material purity ,
3. performance thresholds
Global Supply Chain
Reliable global logistics to industrial hubs (DE/US/JP/KR priority) with trackable milestones.
Releted Products
As a specialized manufacturer with direct factory capabilities, TOQUARTZ provides both standard and custom quartz solutions with engineering support throughout the specification and implementation process.
FAQ
Q: Can TOQUARTZ® double-layer quartz cooling sleeves be used with all types of chemicals?
A: Quartz is highly resistant to most chemicals, including acids, solvents, and corrosive substances. The only significant exception is hydrofluoric acid (HF), which can etch and dissolve quartz. Additionally, at high temperatures, alkaline substances should be avoided as they can degrade the quartz material.
Q: Can TOQUARTZ® double-layer quartz cooling sleeves be integrated with standard laboratory glassware?
A: Yes, we can customize our double-layer quartz cooling sleeves with standard laboratory connections such as 24/40 ground glass joints or other sizes to ensure compatibility with your existing laboratory glassware and equipment. We can also design custom connections based on your specific integration requirements.
Q: >What is the recommended cooling water flow rate for TOQUARTZ® double-layer quartz cooling sleeves?
A: The optimal cooling water flow rate typically ranges from 0.5 to 2.0 liters per minute, depending on the application temperature and cooling requirements. For high-temperature applications, higher flow rates may be necessary. We can provide specific recommendations based on your process parameters.
Q: How should I clean and maintain double-layer quartz cooling sleeves?
A: For routine cleaning, rinse with deionized water and mild laboratory detergent. For more stubborn deposits, a dilute acid solution (except HF) can be used. Periodically flush the cooling jacket with a descaling solution to prevent mineral buildup. Always rinse thoroughly with deionized water after cleaning and dry completely before storage.
Q: What is the maximum temperature TOQUARTZ® double-layer quartz cooling sleeves can withstand?
A: Our double-layer quartz cooling sleeves can withstand continuous operation at temperatures up to 1100°C and short-term exposure up to 1450°C. The actual temperature limit may vary depending on the specific design and application conditions.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.