DURAN 217117102 Narrow Neck Beaded 4000 mL

DURAN 217117102 Flat-Bottom Flask Narrow Neck Beaded 4000 mL

The DURAN 217117102 is a 4,000 mL flat-bottom flask designed for large-volume laboratory applications. Made from DURAN® borosilicate glass 3.3, it offers outstanding chemical resistance, low thermal expansion, and long service life under repeated heating and sterilization.

Its flat base provides excellent stability, allowing it to stand directly on hot plates or benches without a support ring, while the narrow-neck design minimizes evaporation and ensures controlled pouring. The beaded rim reinforces the neck opening, improving mechanical durability and reducing the risk of chipping.

Thanks to its uniform wall thickness, the flask distributes heat evenly and reduces thermal stress, making it reliable for boiling, distillation, and general heating processes. This model belongs to the non-DIN EN ISO size series, optimized for larger volumes, and is supplied individually (1 unit per pack).

Features

• Premium DURAN® Borosilicate Glass 3.3 – Excellent thermal and chemical resistance.

• Flat-Bottom Design – Provides stable placement on hot plates or work surfaces without additional supports.

• Narrow-Neck with Beaded Rim – Reduces evaporation, ensures controlled pouring, and increases durability.

• Uniform Wall Thickness – Promotes even heating and minimizes hot spots during thermal applications.

• Large 4 L Capacity – Ideal for bulk preparation, heating, or storage.

• Autoclavable (~121 °C) – Safe for sterilization and repeated reuse.

• Non-DIN EN ISO Size – Special design for large-volume glassware needs.

Key Specifications

• Catalogue Number: 217117102

• Capacity: 4,000 mL

• Material: DURAN® Borosilicate Glass 3.3

• Neck Type: Narrow neck, beaded rim

• Base Type: Flat bottom

• Classification: Non-DIN EN ISO size

• Wall Thickness: Uniform for optimized heating performance

• Packaging: 1 unit per pack

• Autoclavable: Yes (~121 °C)

Applications

• Heating & Boiling – Reliable for uniform heating of 4 L liquid volumes.

• Distillation & Reaction Vessels – Suitable for chemical synthesis and lab-scale reactions.

• Reagent & Media Preparation – Perfect for bulk preparation of solutions in research or industrial labs.

• General Laboratory Use – Durable glassware for routine heating and storage tasks.