Dropping Cylindrical Pressure Equalizing Manufacturer,Supplier and Exporter in India
Product Code : JL-LE-11402
The Dropping Cylindrical Pressure Equalizing funnel (SKU JL-LE-11402, Cat. No. JSS-255/0287) is a 100 ml borosilicate glass addition funnel for feeding a liquid steadily into a closed reaction flask. A side tube links the space above the liquid to the flask, so the pressure on both sides stays equal and the liquid keeps flowing even when the system is sealed or under an inert gas. Flow is set with a PTFE key stopcock that needs no grease. Because the body is cylindrical rather than pear-shaped, the liquid level falls evenly as it empties.
Specifications
Listed specifications:
| Product | Dropping Cylindrical Pressure Equalizing |
| SKU | JL-LE-11402 |
| Cat. No. | JSS-255/0287 |
| Type | Cylindrical, pressure equalizing |
| Capacity | 100 ml |
| Graduation | Ungraduated |
| Material | Borosilicate glass |
| Stopcock | PTFE key |
| Properties | Chemical resistant, heat resistant |
| Joint (socket) size | Confirmed on the quotation |
Where the pressure equalizing funnel is used
- Dropwise addition of reagents to a reaction flask under reflux
- Additions to sealed set-ups or reactions kept under nitrogen
- Controlled addition in organic preparation practicals at college level
- Adding acid or alkali slowly during a controlled neutralisation
Scope of supply and ordering
Each funnel is supplied with its PTFE stopcock. The ground-glass joint size to match your flasks, and the number of funnels, are confirmed on the quotation. Loosen the PTFE key before long storage so that it does not seize.
Frequently asked questions
Why is a pressure equalizing funnel used instead of an ordinary dropping funnel?
Its side arm balances the pressure above the liquid with the flask, so the liquid keeps running into a closed or inert-gas system.
Is the funnel graduated?
No, it is ungraduated.
What type of stopcock does it have?
A PTFE key stopcock.
Related products
More glassware is listed in our laboratory equipment range.
Request a quote
Ask for a price on the 100 ml pressure equalizing funnel, with your joint size, through our contact page. Buying under a laboratory tender? Use our tenders page.
