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Double Layer Quartz Glass Tube for Lab Condensation -TOQUARTZ®​

High-precision double-layer quartz glass tube is designed specifically for laboratory condensation systems.

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.
No MOQ
Custom Design
Factory Direct
Tech Support

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.

high-performance double-layer quartz cooling sleeve specifically engineered for precision laboratory
TOQUARTZ® Double-Layer Quartz Cooling Sleeve

Available Dimensions of Double Layer Quartz Glass Tube

TOQUARTZ® double-layer quartz glass tubes are available in a range of standard dimensions and can be customized to meet your specific requirements with precision tolerances that exceed industry standards.
ParameterStandard RangeCustom Range
Inner Diameter (ID)20mm, 25mm, 30mm16mm – 40mm
Outer Diameter (OD)25mm, 30mm, 35mm20mm – 50mm
Wall Thickness1.5mm, 2.0mm, 2.5mm1.0mm – 3.0mm
Length200mm, 300mm, 400mm100mm – 1000mm
Inlet/Outlet Diameter4mm, 6mm, 8mm3mm – 10mm
Connection TypeStandard24/40 ground glass joints
Note: Custom dimensions beyond these ranges may be available upon request. Please contact our engineering team for feasibility assessment.

Solving Challenges with Double Layer Quartz Glass Tube

Double Layer Quartz Glass Tube for Analytical Chemistry Labs

Analytical chemistry laboratories require precise temperature control during distillation, reflux, and condensation processes.

Traditional glass condensers often crack under thermal stress and lack chemical resistance needed for aggressive reagents.

Key Advantages

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

Research facilities working with high-temperature reactions face challenges with conventional cooling systems that fail under extreme conditions, compromising experiment integrity and safety.

Key Advantages

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

System integrators and custom equipment manufacturers struggle to find suppliers who can provide technical support and responsive design modifications for specialized cooling components.

Key Advantages

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

TOQUARTZ specializes in enginner double-layer quartz glass tubes tailored to your exact specifications.
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

Custom inner and outer diameters, wall thickness, length, and inlet/outlet configurations to match your specific requirements.
Custom end connections including standard laboratory fittings, ground glass joints (24/40 and others), flanges, or specialized connections for your equipment.
Advanced designs including curved sections, multiple inlets/outlets, specialized cooling chambers, or integrated components for complete system solutions.

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

Proper handling and usage of double-layer quartz glass tubes are essential to maximize their performance and longevity. Follow these guidelines to ensure optimal results and prevent damage.

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.

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?

Our engineers are ready to help design the perfect solution for your laboratory needs.

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.

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.

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.

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.

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.

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.

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