Stopcock for Desiccator, PP/PTFE

The GISCOM Stopcock for Desiccator (PP/PTFE) is a precision-engineered vacuum control component designed for reliable sealing, smooth vacuum release, and long-term durability. It is an essential spare part for both glass and plastic desiccators, ensuring stable vacuum performance in critical laboratory workflows. Built with high-quality polymers, it delivers leak-proof operation and excellent chemical resistance—ideal for research, industrial testing, and quality-controlled environments.

Key Features

• High-precision molding for airtight performance in all standard desiccators
• PTFE plug mechanism ensures smooth, controlled vacuum release without sticking
• Leak-proof sealing for consistent vacuum retention
• Ergonomic design for easy handling and rotation
• Resists chemical attack, corrosion, and repeated laboratory use
• Compatible with both glass and plastic vacuum desiccators
• Lightweight, durable, and designed for long operational life

Material Specifications

• Body: Polypropylene (PP) is chemically resistant, rigid, and durable
• Seal & Plug: Polytetrafluoroethylene (PTFE) non-stick, self-lubricating, inert
• Thermal Properties: Withstands standard autoclaving temperatures*
• Chemical Resistance: Stable against most acids, alkalis, and laboratory reagents

 Technical Specifications

• Component Type: Stopcock for vacuum desiccators
• Catalog Reference: As per model (e.g., 12032.x series)
• Fitment: Compatible with a wide range of GISCOM and non-GISCOM desiccators
• Vacuum Release: Three-way adjustable PTFE plug (where applicable)
• Operating Tolerance: Precision-fit for airtight sealing; calibration not required
• Accessories Included: Complete PP body + PTFE plug assembly

Handling & Precautions

• Ensure proper insertion and seating before applying the vacuum
• Rotate the PTFE plug gently; avoid forceful turning
• Clean using mild, non-abrasive detergents
• Do not expose to strong organic solvents that may affect PP
• Do not autoclave beyond the recommended polymer temperatures
• Avoid dropping or applying unnecessary mechanical stress
• Regularly inspect the O-ring (if used in your desiccator model) for the best vacuum performance

 Applications

• Controlled vacuum regulation in desiccators
• Moisture-free drying and storage of sensitive materials
• Gravimetric analysis, stability studies, and sample preservation
• Essential for workflows in pharmaceutical QC/QA, chemical labs, biotechnology research, food testing labs, academic institutions, and industrial R&D units
• Ensures safe and accurate vacuum handling in routine laboratory operations