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China Suppliers Factory Lab Use Borosilicate Glass Buchner Filter Funnel for Efficient Filtration
Buchner Filter Funnel
Standard ground glass joint
Uniform aperture
High-quality standards
Buchner Filter Funnel with Fritted Disc
Buchner Filter Funnel with Glass Perforated Plate
Product Name:
Glass Buchner Filter Funnel
Product Specifications:
30-2000ml
Product Material:
High borosilicate glass
Product Type:
1.Buchner Filter Funnel with Glass Perforated Plate . 2.Buchner Filter Funnel with Fritted Disc (G0, G1, G2, G3, G4, G5, G6).
Product Introduction:
Filter funnel is often used in conjunction with an air pump and filter bottle, it uses the air pump to reduce the pressure in the filter bottle, combined with the filter plate, to achieve solid-liquid separation. Also known as vacuum filtration or vacuum filtration.
Product Show
Borosilicate glass low coefficient of thermal expansion and high resistance to fracture stability
The fine fritted disk carefully selected meticulously crafted for easy use
Thickened rim and wall thickness reduce the likelihood of damage from minor accidental collisions.

Buchner Filter Funnel with Fritted Disc Show
Specifications and Lntroduction of Fritted Disc
As shown in the figure: the fritted disk aperture G0>G1>G2>G3>G4>G5>G6. The larger the number, the smaller the aperture. The commonly used ones are G2/G3 fritted disk, G3 is used to filter out fine sediment. Under normal pressure, the water output is slow or non-existent, and it is more effective when combined with pressure or suction filtration. G0-G2 fritted disk, due to its coarse pore size, can be naturally filtered under normal pressure.
Buchner Filter Funnel with Glass Perforated Plate Show
Product Details Show
Size Show
Buchner Filter Funnel Specifications
| Item | Description | Picture | Capacity (ml) | Outer Diameter (mm) | Height (mm) | Height from Filter to Mouth (mm) | Hose Diameter (mm) | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| 1 | Buchner Filter Funnel with Fritted Disc | ![]() |
30 | 32 | 136 | 56 | 10 | 53 |
| 2 | 60 | 48 | 148 | 57 | 10 | 83 | ||
| 3 | 100 | 61 | 154 | 60 | 10 | 114 | ||
| 4 | 150 | 70 | 170 | 72 | 10 | 163 | ||
| 5 | 250 | 81 | 183 | 81 | 10 | 221 | ||
| 6 | 350 | 90 | 193 | 89 | 10 | 309 | ||
| 7 | 500 | 100 | 202 | 92 | 10 | 372 | ||
| 8 | 600 | 100 | 230 | 119 | 10 | 428 | ||
| 9 | 1000 | 121 | 237 | 122 | 10 | 562 | ||
| 10 | 2000 | 149 | 280 | 157 | 10 | 1323 | ||
| 11 | Buchner Filter Funnel with Glass Perforated Plate | ![]() |
30 | 32 | 136 | 56 | 10 | 51 |
| 12 | 60 | 48 | 148 | 57 | 10 | 81 | ||
| 13 | 100 | 61 | 154 | 60 | 10 | 126 | ||
| 14 | 150 | 70 | 170 | 72 | 10 | 167 | ||
| 15 | 250 | 81 | 183 | 81 | 10 | 217 | ||
| 16 | 350 | 90 | 193 | 89 | 10 | 293 | ||
| 17 | 500 | 100 | 202 | 92 | 10 | 361 | ||
| 18 | 600 | 100 | 230 | 119 | 10 | 424 | ||
| 19 | 1000 | 121 | 237 | 122 | 10 | 535 |
Precautions
The pressure needs to be slowly increased, please do not suddenly increase the pressure violently, as increasing the pressure too quickly can easily cause product damage or experimental failure.
Frequently Asked Questions (FAQ)
What is a Glass Buchner Filter Funnel used for?
A Glass Buchner Filter Funnel is commonly used in laboratory setups in combination with an air pump and filter bottle. It utilizes reduced pressure from the air pump to perform vacuum filtration, allowing for efficient solid-liquid separation.
What material is used to manufacture these Buchner funnels?
They are manufactured from high borosilicate glass, which provides a low coefficient of thermal expansion and excellent structural stability to resist thermal and physical fractures.
What is the difference between G0 and G6 fritted discs?
The pore aperture sizes rank as G0 > G1 > G2 > G3 > G4 > G5 > G6. The larger the grade number, the smaller the filter pores. While G0-G2 discs can filter under gravity, finer grades like G3-G6 require vacuum pressure to filter fluids effectively.
What capacities and specifications are available?
The Glass Buchner Filter Funnels are available in capacities ranging from 30ml up to 2000ml, with outer diameters ranging from 32mm to 149mm to fit various experimental requirements.
What safety precautions should be followed during vacuum filtration?
You must increase the filtration pressure gradually and slowly. Avoid sudden, violent pressure spikes, as rapid changes can damage the glass body or cause experimental failures.


