Dropping Funnel Cylindrical, PTFE Stopcock
Product Code : EL-F-10106
Lab Glassware Manufacturer manufactures, supplies and exports the Dropping Funnel Cylindrical, PTFE Stopcock from its production facility in Ambala, Haryana, serving school and college laboratories, research institutes and industrial buyers across India and export markets that have recently included Bolivia, Paraguay and Uruguay — part of a wider base of enquiries from across the Southern Cone.
Quick answer: This dropping funnel has a cylindrical body and a PTFE key stopcock, available with a PE (polyethylene) stopper. It is supplied in five capacities from 50ml to 1000ml, each with a choice of 2.5mm, 4mm or 6mm bore, and is used to add a liquid reagent into a reaction vessel in a slow, controlled stream.
| Specification | Detail |
|---|---|
| Product | Dropping Funnel Cylindrical, PTFE Stopcock |
| Capacities offered | 50ml, 100ml, 250ml, 500ml, 1000ml |
| Stopcock type | PTFE |
| Bore options | 2.5mm, 4mm, 6mm |
| Stopper | Available with PE (polyethylene) stopper |
Why a PTFE Stopcock Is a Practical Default
A PTFE key stopcock is a practical default for a dropping funnel because it needs little maintenance and resists most common solvents and reagents used during reagent addition, without the periodic greasing a ground-glass key needs. It gives reliable on/off control and moderate flow adjustment, which suits most routine reagent-addition tasks; where very slow, fine dropwise control is the priority, a needle-valve stopcock is worth considering instead. The bore size chosen sets the funnel's practical flow range independent of the stopcock type.
Frequently Asked Questions
Why choose a PTFE stopcock over a glass key?
PTFE needs little maintenance and resists most common solvents and reagents, without the periodic greasing that a ground-glass stopcock key needs.
What bore sizes and capacities are available?
This dropping funnel is offered in 50ml, 100ml, 250ml, 500ml and 1000ml capacities, each with a choice of 2.5mm, 4mm or 6mm bore. Confirm the exact capacity, bore size and quantity required at enquiry stage.
Does this funnel come with a stopper?
Yes, it is available with a PE (polyethylene) stopper.
Do you export this dropping funnel outside India?
Yes, it is exported to institutional and distributor buyers outside India, with recent enquiries from Bolivia, Paraguay and Uruguay among other Southern Cone markets. Share the required capacity, bore size and destination country through Contact Us for a quotation.
Related Products
Explore more from the Funnel range: Dropping Funnel Cylindrical, Needle Valve Stopcock, Buchner Funnel Fritted Disc, and the full Laboratory funnel category.
Request a Quote
Interested in this Dropping Funnel for your lab, school or export order? Contact Us for a quotation, or visit the Tenders page for bulk and institutional procurement.
Last updated: September 2026.