Still Head

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The GISCOM Still Head is a precision-engineered glass adapter designed for use in distillation assemblies and chemical separation setups. It provides an efficient junction for connecting condensers, flasks, and thermometers, ensuring accurate temperature monitoring and smooth vapour flow. Built for routine and advanced laboratory operations, it supports reliable distillation performance in research, academic, industrial, and pharmaceutical environments.

Key Features

• Manufactured from high-quality Borosilicate Glass 3.3 for superior durability and chemical resistance
• Smooth internal surfaces allow uninterrupted vapor passage and reduced contamination risk
• Integrated thermometer socket for real-time, precise temperature measurement
• Standard taper joints ensure leak-free, universal compatibility with laboratory glassware
• Excellent thermal shock resistance, ideal for heating, cooling, and repeated use
• Stress-free, uniform wall thickness for added mechanical stability
• Available in multiple joint sizes to suit various distillation setups
• High transparency for clear visibility of process and vapor flow

Material Specifications

• Material: Borosilicate Glass 3.3
• Thermal Properties: Low coefficient of thermal expansion, high resistance to thermal shock. Suitable for high-temperature distillation and laboratory heating processes
• Chemical Properties: Resistant to acids, solvents, and most laboratory reagents. Non-porous surface prevents chemical absorption and staining
• Mechanical Properties: Strong structural integrity, stress-annealed for long service life
• Standards Compliance: Manufactured according to guidelines for laboratory glassware

Technical Specifications

• Joint Sizes: Commonly available in 14/23, 19/26, 24/29, and additional sizes upon request
• Thermometer Socket: Standard 14/23 socket (or as specified)
• Design: Straight vertical tube with side-arm outlet for condenser connection
• Tolerance: Precision-ground joints with standardized taper accuracy
• Accessories: Compatible thermometer adapters are available separately. Custom joint sizes and OEM modifications available on request

Handling & Precautions

• Always inspect joints for chips or cracks before use
• Avoid sudden temperature changes to maximize glass life
• Clean with mild laboratory detergents; avoid abrasive materials
• Suitable for autoclaving; follow standard autoclave temperature limits (up to 121°C)
• For high-temperature operations, heat gradually and cool slowly
• Do not expose to open flame unless specifically intended for flame-resistant setups
• Store in padded racks or glassware stands to prevent mechanical damage

Applications

• Ideal for distillation, fractional distillation, solvent purification, and chemical separation

Widely used in:

• Research laboratories
• Pharmaceutical and biotechnology industries
• Chemical processing units
• Quality control (QC) and quality assurance (QA) labs
• Academic and university teaching laboratories
• An essential component in daily workflows requiring controlled heating, vapor generation, and temperature-monitored distillation