Clear Quartz Glass Flange Tube High Temperature Resistant Custom Welded Quartz Pipe For Lab Equipment CVD Furnace-sara
2026/06/22
Our flanged quartz tube is manufactured from 99.99% high-purity synthetic fused silica, with integrally fused quartz flange welded at single end or both ends after high-temperature annealing treatment to eliminate internal stress and avoid cracking during high-temperature operation.
The integrated flange structure realizes tight, leak-free sealing with furnace, vacuum equipment and reaction cavity via O-rings, greatly simplifying equipment assembly and disassembly. The tube body adopts flame polished finish, ultra-high UV & visible light transmittance, no bubbles, no scratches, no internal impurities, stable performance under long-term high temperature and vacuum environment.
This quartz flange pipe features excellent thermal stability: continuous working temperature up to 1200℃, instant heat resistance up to 1450℃, low thermal expansion coefficient, outstanding thermal shock resistance. It is inert to most acids, alkalis and corrosive gases, will not react with experimental raw materials, ensuring high purity of the reaction environment, especially suitable for semiconductor, photovoltaic and laboratory precision processing scenarios.
We support full customization: tube outer diameter, wall thickness, length, flange size, bolt hole position, single/double flange structure, open end / closed dome end are all available according to customer drawings. Every product undergoes strict dimensional tolerance inspection, annealing and surface polishing before delivery to guarantee stable batch consistency.
Core Features
- Ultra-high purity fused silica raw material, low hydroxyl content, no metal impurity precipitation
- Integral hot welding quartz flange, high bonding strength, anti-crack after high temperature annealing
- Flame polished inner & outer surface, high light transmittance, smooth without burrs
- Outstanding high temperature resistance, thermal shock resistance and acid & alkali corrosion resistance
- Stable performance under vacuum environment, good sealing performance with matching flanges
- Full-size customization: single flange, double flange, closed bottom quartz tube optional
- Strict dimensional precision control, stable batch quality for industrial mass production
Wide Applications
- Laboratory tube furnaces, high temperature sintering furnaces, CVD reaction equipment
- Semiconductor wafer processing, thin film deposition, vacuum coating chambers
- Photovoltaic industry, ozone reaction devices, UV light experimental equipment
- Chemical corrosion resistance reactors, high-temperature gas analysis instruments
- Optical testing, thermal processing, material annealing experiments
