Hollowed glass stoppers

Hollowed Glass Stoppers - Laboratory Glassware Solutions

Premium hollowed glass stoppers designed for laboratory applications requiring secure sealing with internal accessibility. These specialized laboratory glass stoppers feature a hollow interior construction that enables gas exchange, pressure equalization, or insertion of probes while maintaining a sealed environment. Manufactured from high-quality borosilicate glass, our hollowed stoppers deliver exceptional chemical resistance and thermal stability for demanding laboratory conditions.

Key Features and Benefits

• Hollow interior design allows for gas exchange and probe insertion
• Precision ground glass joints ensure leak-proof sealing
• Chemical-resistant borosilicate glass construction
• Temperature resistant from -80°C to +500°C
• Standard taper sizes compatible with most laboratory glassware
• Easy to clean and sterilize for repeated use
• Excellent optical clarity for visual monitoring

Laboratory Applications

Essential for analytical chemistry, organic synthesis, and research applications where controlled access is required. Ideal for gas chromatography sample preparation, vacuum distillation setups, fermentation monitoring, and electrochemical experiments. These specialized glass stoppers are particularly valuable in pharmaceutical research, environmental testing, and quality control laboratories where precise atmospheric control is critical.

Technical Specifications

Available in standard joint sizes from 10/30 to 45/50, manufactured to DIN/ISO standards. Maximum working pressure of 1.5 bar, with excellent thermal shock resistance. Each stopper undergoes rigorous quality testing to ensure dimensional accuracy and sealing performance for reliable laboratory results.