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Solid Glass Stopper, Penny Head

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Solid Glass Stopper, Penny Head

Solid Glass Stopper, Penny Head

Solid Glass Stopper, Penny Head, made of borosilicate 3.3. Available in different sizes.

SKU: 11110 Categories: , ,

Description

Catalogue No. Cone Size
11110/1 10/19
11110/1.1 12/21
11110/2 14/23
11110/3 19/26
11110/4 24/29
11110/5 29/32
11110/6 34/35

The MEDILAB Solid Glass Stopper, Penny Head, is a precision-made sealing component designed for laboratory glassware requiring an airtight, leak-proof closure. Its distinctive penny-shaped head provides easy grip and controlled handling during routine lab operations. Manufactured from high-quality borosilicate glass 3.3, it delivers superior chemical resistance, thermal stability, and durability—ensuring reliable performance in research, analytical, educational, and industrial environments.

Key Features

  • Penny-Head Design: The Ergonomic flat disc head ensures a secure grip and safe handling, even with gloved hands.
  • High-Precision Ground Joint: Offers perfect sealing compatibility with standard interchangeable glassware.
  • Superior Durability: Made from borosilicate glass 3.3, providing long-term resistance to breakage and thermal stress.
  • Chemically Inert Surface: Non-reactive with common acids, alkalis, solvents, and laboratory reagents.
  • Smooth Polished Finish: Allows effortless insertion and removal without sticking.
  • Universal Fit: Compatible with a wide range of laboratory flasks, bottles, cylinders, and containers using standard taper joints.
  • Autoclavable Construction: Safe for sterilisation and repeated high-temperature use.

Material Specifications

  • Material: Borosilicate Glass 3.3

Thermal Properties:

  • Low thermal expansion coefficient (~3.3 × 10⁻⁶/K)
  • Excellent thermal shock resistance

Chemical Resistance:

  • High resistance to acids, alkalis, organic solvents, and corrosive chemicals
  • Non-porous, ensuring contamination-free operations

Mechanical Properties:

  • High-dimensional stability
  • Scratch-resistant and long-lasting

Standards Compliance:

  • Manufactured in accordance with international glass standards (ISO / DIN equivalents)

Technical Specifications

  • Available Sizes: Multiple standard taper joint sizes (custom sizes available on request).
  • Dimensions: Precision-ground according to standard joint geometry.
  • Tolerance: Tight dimensional tolerances ensure secure, airtight sealing.
  • Calibration: Not applicable for solid stoppers.

Packaging:

  • Individually packed or bulk-packed
  • Shock-absorbing protective materials for international shipping

Accessories Included: None (compatible glassware available separately).

 Handling & Precautions

Safe Use:

  • Insert gently into matching joints to avoid chipping of ground surfaces.
  • Ensure stopper and joint surfaces are dry for optimal sealing.

Cleaning Instructions:

  • Wash using standard laboratory detergents and warm water.
  • Suitable for ultrasonic cleaning.
  • Avoid abrasive pads that may scratch the ground surface.

Autoclaving:

  • Fully autoclavable; withstands repeated sterilisation cycles.
  • Avoid rapid temperature changes to prevent thermal shock.

Do’s & Don’ts:

  • Do: Rotate gently during removal to prevent sticking.
  • Do: Store in padded compartments to avoid impact damage.
  • Don’t: Use excessive force when inserting or removing.
  • Don’t: Expose to direct flame or sudden extreme heat.

Best Practices: Lightly lubricate ground joints with appropriate grease when required.

 Applications

  • Analytical & Research Laboratories: Sealing flasks and vessels in chemical reactions and sample preparation.
  • Pharmaceutical QC/QA: Ideal for contamination-free storage of sensitive samples.
  • Chemical & Industrial Laboratories: Suitable for processes requiring airtight containment.
  • Biotechnology & Microbiology: Supports controlled experimental setups and culture environments.
  • Academic Institutions: Reliable for teaching labs and routine scientific glassware usage.
  • General Laboratory Workflow: Provides dependable sealing for titration flasks, storage bottles, reaction vessels, and volumetric containers.

Why Choose MEDILAB

  • 35+ Years of Expertise in manufacturing high-quality laboratory glassware.
  • Global Presence in 40+ Countries, trusted by distributors and scientific institutions worldwide.
  • Export-Quality Production: Precision manufacturing using premium borosilicate 3.3.
  • OEM & Private Label Services are available for distributors and brands.
  • Guaranteed Consistency & Reliability: Strict QC standards ensure every stopper meets performance expectations.
  • Robust Packaging & Global Logistics Support for safe, damage-free deliveries.

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