Absorption U-tube (side Arm)

Absorption U-Tubes with Side Arms are essential laboratory glassware components engineered for the efficient absorption, drying, or purification of gases. Fabricated from premium-grade borosilicate glass, these U-shaped tubes are designed to withstand high thermal loads and resist aggressive chemical reactions, making them ideal for rigorous analytical procedures.

The specialized design features dual horizontal side arms that facilitate seamless integration into gas train systems, manifold assemblies, or organic synthesis setups. Typically packed with solid desiccant materials (such as calcium chloride or silica gel) or liquid absorbents, they effectively capture moisture or specific gaseous impurities from a gas stream.

Key Features

• Manufactured from high-grade borosilicate 3.3 glass for superior chemical and thermal durability
  
• Precision-formed side-arm connectors for secure and leak-proof tubing connections
  
• Uniform wall thickness to ensure safe operation under varying temperature and pressure conditions
  
• U-shape geometry optimized for maximum gas-to-reagent contact time
  
• Available in multiple standard lengths, limb diameters, and joint configurations
  

International Standards

Our absorption U-tubes comply with globally recognized laboratory glassware manufacturing specifications, ensuring their suitability for international distribution and export:​

• DIN 12610 – Laboratory Glassware – Drying Tubes and Absorption Tubes
  
• ISO 4796 – Laboratory Glassware – Essential Dimensions and Tolerances
  
• ASTM E438 – Standard Specification for Glasses in Laboratory Apparatus
  

Custom dimensions, variable side-arm diameters, and specialized ground glass joints (e.g., Quickfit style) can be manufactured to match your exact client specifications.

Applications

Widely utilized across diverse scientific sectors, including elemental analysis (carbon and hydrogen determination), gas purification lines, organic synthesis drying stations, educational chemistry laboratories, and industrial quality control systems.

Why Choose Our Products

• Premium export-quality finish with stress-relieved glass molding
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• Strict adherence to international scientific engineering tolerances
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• Robust construction designed to minimize breakage during packing and setup changes
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• Trusted supplier by global scientific equipment distributors and lab procurement agencies