Adapter Cone with Glass Stopcock

The GISCOM Adapter Cone with Glass Stopcock is a precision-crafted connector designed for controlled transfer of liquids or gases in laboratory setups. Its right-angle configuration allows seamless integration between apparatus while providing accurate flow control through a robust glass stopcock. Essential for analytical, preparative, and industrial workflows, this adapter ensures leak-free operation and reliable performance in demanding scientific environments.

Key Features

• Right-angle connection design for efficient routing of liquids, vapours, or gases.
• Integrated glass stopcock enables precise flow regulation and isolation.
• Manufactured from Borosilicate Glass 3.3 for superior thermal and chemical resistance.
• High-precision ground joints ensure a tight, interchangeable fit with standard laboratory glassware.
• Smooth stopcock operation with excellent sealing to prevent leaks or contamination.
• An optional PTFE key stopcock is available for enhanced chemical resistance and low friction.
• Crystal-clear transparency for easy flow observation and process monitoring.
• Reusable and autoclavable, offering long-term durability and cost efficiency.

Material Specifications

• Material: Borosilicate Glass 3.3
• Thermal Characteristics: High resistance to thermal shock. Maximum working temperature: ~500°C Coefficient of linear expansion: 3.3 × 10⁻⁶ /°C
• Chemical Characteristics: Excellent resistance to acids, alkalis, salts, and organic solvents. Inert, non-reactive surface to maintain sample purity
• Mechanical Properties: High-dimensional stability and strength, Precision-ground joint surfaces
• Standards Compliance: ISO 3585, DIN/ISO standard joint dimensions

Technical Specifications

• Design: Adapter cone with 90° connection and integrated glass stopcock
• Available Joint Sizes: As per the standard size table
• Stopcock Type: Standard glass key stopcock. Optional PTFE key stopcock available for high-corrosive applications
• Tolerance: Manufactured to precise joint tolerances for perfect compatibility and vacuum applications
• Accessories Included: None (compatible with standard lab glassware assemblies)

Handling & Precautions

• Open and close the stopcock gently to maintain smooth operation and prevent wear.
• Use appropriate joint grease when required for vacuum or gas-tight applications.
• Clean with mild detergents or approved solvents; avoid abrasive materials that may scratch glass.
• Autoclavable—ensure gradual heating and cooling cycles to prevent stress fractures.
• Do not apply direct flame to thin or jointed areas.
• Inspect the stopcock and joints regularly for chips, cracks, or residue buildup.
• Store upright or cushioned to prevent accidental breakage.

Applications

Ideal for a wide range of laboratory and industrial processes, including:

• Liquid transfer and distribution in analytical setups
• Vacuum and gas line control
• Organic synthesis and chemical processing
• Pharmaceutical and biotech workflows where controlled flow is critical
• QC/QA laboratories for routine testing operations
• Academic and research laboratories for teaching and experimental setups
• Chemical, petrochemical, food, and environmental labs using glass assemblies and distillation systems

The adapter plays a key role in assembling modular glass systems, ensuring safe, controlled, and contamination-free handling of substances.