Twin Quartz Glass Tubes: Advanced Parallel Flow Solutions by John Moncrieff Ltd

John Moncrieff’s Twin Quartz Glass Tubes are precision-engineered for applications requiring synchronised flow, uniform heating, and exceptional chemical stability. These dual-channel tubes offer outstanding dimensional accuracy, durability, and optical performance — making them ideal for advanced industrial, scientific, and high-temperature systems.

Precision Engineering Specifications

• Twin Tube Configuration: Parallel precision-engineered channels for balanced performance
• Diameter Range: Customisation from 1 mm to 800 mm per tube
• Maximum Length: Available in extended lengths from 3,000 to 5,000 mm
• Wall Thickness: Precision-controlled between 0.5 mm and 10 mm
• Parallel Alignment: Engineered for synchronised fluid or thermal flow applications

Superior Temperature Performance

• Hardening Point: Exceptional resistance up to 1730 °C
• Sustained Operation: Reliable continuous performance at 1000 °C
• Peak Capability: Tolerates short-term exposure up to 1450 °C
• Thermal Uniformity: Ensures balanced heat distribution across both channels

Chemical Resistance Excellence

• Comprehensive Chemical Compatibility: Resistant to most acids and alkalis (excluding hydrofluoric acid)
• Industry-Leading Durability:
  • 30× more acid-resistant than ceramic materials
  • 150× superior resistance compared to stainless steel
  • Exceptional low-temperature chemical stability

Thermal Engineering Properties

• Minimal Thermal Expansion: Coefficient of (5.3 – 5.8) × 10⁻⁷
• Superior Shock Resistance: Maintains structure when cooled rapidly from 1100 °C
• Parallel Thermal Performance: Synchronised temperature distribution across twin tubes

Electrical Characteristics

• Enhanced Insulation: 10,000× more resistant than standard glass
• High-Temperature Stability: Retains electrical properties under extreme heat
• Dual Channel Protection: Consistent insulation performance across both tubes

Optical Performance

• Full-Spectrum Transmission: Outstanding performance across UV to infrared
• High Clarity: > 93% visible light transmission
• UV Excellence: 80–90% ultraviolet transmission
• Balanced Performance: Consistent optical clarity across both channels

Key Applications

• Heat Exchange Systems
• Parallel Flow Processing
• Chemical Analysis Equipment
• Semiconductor Manufacturing
• Dual Channel Monitoring Systems
• Laboratory Instrumentation
• High-Temperature Industrial Processes

Quality Assurance

• ISO 9001 Certified Production – Consistent quality across every batch
• Rigorous Quality Control – Comprehensive inspection at all production stages
• Complete Material Traceability – Documented from silica sourcing to final delivery
• International Safety Compliance – Meeting global safety and performance standards
• Comprehensive Testing Protocol: Dimensional, optical, and thermal validation performed for every product

John Moncrieff Ltd leads the field in precision-engineered twin quartz glass tubing, offering unmatched performance and reliability for industrial, scientific, and semiconductor applications.

Contact our Technical Team today to discuss your custom twin quartz tube requirements.