Büchner Flask.

Gupta Instruments Company is a leading manufacturer of high-quality microscopes, dedicated to advancing scientific research, education, and industrial applications. With a commitment to precision engineering and innovation, we design and manufacture a wide range of microscopes, including biological, stereo, metallurgical, digital, and fluorescence microscopes.

Contact Us Branch Office: Shop No. 5 5507/11 Grain Market, Jagdanbey Complex, Opp. BJP Office Ambala Cantt -133001
Head Office: Ground Floor 160/18 Subhash Colony Ambala Cantt -133001 +91 9896742010 scientificinstruments2010@gmail.com

Gupta Instruments Company : Home

Büchner Flask.

A Büchner flask (vacuum/filtering flask) is a heavy-walled, conical borosilicate 3.3 glass flask designed for vacuum filtration, featuring a thick, cone-shaped body, a flat base, and a side arm for vacuum tubing. Common sizes range from 100 mL to 2000 mL, typically with 24/29 or 29/32 socket joints for sealing, and are autoclavable with high thermal shock resistance

Enquiry Now

Product Information

Key Specifications

Material: Borosilicate 3.3 Glass (high durability, chemical resistance, and thermal shock resistance).
Capacity: Ranges typically from 100mL, 250mL, 500mL, 1000mL to 2000mL.
Structure: Conical, thick-walled (approx. 2-3 mm) with a heavy base for vacuum stability.
Side Arm: Integral side arm for vacuum tubing, often ~8-9mm OD for 9mm bore tubing.
Joint Size (Interchangeable): Common sizes include 24/29, 29/32, or 19/26.
Temperature Range: Typically withstands up to