Five Neck Reaction Flask Lid Manufacturer,Supplier and Exporter in India
Product Code : EL-GF-11129
Quick Answer: The Five Neck Reaction Flask Lid is heavy wall, low expansion borosilicate glassware with a flat flange and interchangeable joints. Its flat ground surface can be greased or used with an o-ring.
Last updated: October 2026
Key Features
- Interchangeable joints on the necks
- Flat flange with a ground surface for grease or an o-ring
- Heavy wall, low expansion borosilicate glass
- Three listed joint arrangements
- Heat resistant and chemical resistant
Technical Specifications
| Specification | Value |
|---|---|
| Material | Low expansion borosilicate glass |
| Joint set A | Central 19/26, parallel 19/26, side 5° 24/29, side 10° 19/26, side 15° NA |
| Joint set B | Central 19/26, parallel 14/23, side 5° 14/23, side 10° 14/23, side 15° 29/32 |
| Joint set C | Central 29/32, parallel 14/23, side 5° 14/23, side 10° 14/23, side 15° 29/32 |
| Flange | Flat, ground surface |
About This Product
This lid closes a flanged reaction flask in the chemical laboratory. Its flat ground flange can be sealed with grease or with an o-ring. The necks include a central one, a parallel one and side necks angled at 5°, 10° and 15°, with joint sizes depending on the arrangement chosen. Beyond India, the Five Neck Reaction Flask Lid is available for export to Sierra Leone, Qatar, Argentina, Uzbekistan and Montenegro.
Frequently Asked Questions
How is the lid sealed?
The lid has a flat ground surface that can be greased or used with an o-ring.
What joint sizes are listed?
The listed arrangements use 14/23, 19/26, 24/29 and 29/32 joints across the central, parallel and angled side necks.
Related: Glassware Flasks, Two Neck Reaction Flask Lid and Three Neck Reaction Flask Lid.
For a quotation on the Five Neck Reaction Flask Lid, contact Didactic Lab.
