PTFE Stirring Stopper, 14# With 16 mm Upper Diameter (CAT#: STEM-BC-3485-ZJF)

This 14# PTFE stirring stopper is designed to seal laboratory vessels during mechanical stirring. An embedded O-ring maintains the sealing performance of the system. The low-friction contact between the stopper and stirring shaft allows smooth rotation. PTFE construction provides resistance to deformation during routine use. The material can withstand operating temperatures up to 280°C. It remains chemically inert toward most acids, alkalis, and organic solvents. The stopper also retains mechanical toughness at temperatures as low as -196°C. Its low surface tension provides nonstick performance and supports convenient cleaning.

Specification: 14#
Upper diameter: 16 mm
Middle diameter: 14.5 mm
Lower diameter: 12.5 mm
Height: 42 mm
Material: PTFE
Seal: Embedded O-ring
Maximum stated working temperature: 280°C
Low-temperature performance: Retains stated 5% elongation at -196°C

Integrated O-ring seal
Low-friction shaft movement
High-temperature resistance
Strong chemical resistance
Low-temperature toughness
Nonstick surface
Deformation resistance
Weather-resistant construction

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