Bell Jar Knobbed
Product Code : JA-ELA-5248
The Bell Jar Knobbed (SKU JA-ELA-5248) is a soda glass bell jar with a knob on top for lifting and a ground flange at the rim that sits flat on a plate. JaincoLab makes it in four sizes, from a small 8 x 4 cm cover to an 18 x 10 cm jar (height x diameter), for school physics and biology labs where a simple glass bell cover is needed for vacuum, air pressure or specimen work.
Specifications
The knobbed bell jar is made of soda glass with a ground flange and a knob, and is listed in four sizes by height and diameter: 8 x 4 cm, 9 x 6 cm, 16 x 10 cm and 18 x 10 cm, as set out in the table below.
| Product | Bell Jar Knobbed |
| SKU | JA-ELA-5248 |
| Material | Soda glass |
| Rim | Ground flange |
| Top | Knob |
| Sizes (height x diameter) | 8 x 4 cm; 9 x 6 cm; 16 x 10 cm; 18 x 10 cm |
Applications of the knobbed bell jar
The knobbed bell jar is used as a glass cover over a plate, either to enclose a small experiment under reduced pressure or to keep specimens and small apparatus covered but visible on the laboratory bench.
- Air pressure and vacuum demonstrations on a pump plate
- Covering specimens and small apparatus
- Plant and small-organism observation set-ups
- Display of samples in school labs
Scope of supply and ordering
The listing covers one knobbed soda glass bell jar in the size ordered. Plates and pumps are separate items. Accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation for the sizes and number of jars and the delivery destination. Glassware is packed for schools, colleges and bulk orders.
Frequently asked questions
Which sizes are available?
8 x 4 cm, 9 x 6 cm, 16 x 10 cm and 18 x 10 cm (height x diameter).
What glass is used?
Soda glass, with a ground flange at the rim.
How is it lifted?
By the knob on top.
Related products
This bell jar is listed in the JaincoLab educational laboratory apparatus range.
Request a quote
To order the Bell Jar Knobbed, send the sizes and number of jars and delivery destination through the JaincoLab contact page or email [email protected], quoting SKU JA-ELA-5248. For tender or project supply, see our tenders page.
