Five Neck Reaction Flask Lid Manufacturer,Supplier and Exporter in Uk
Product Code : DS-GF-10359
Quick Answer: The Five Neck Reaction Flask Lid is a heavy-wall, low expansion borosilicate glass lid with five necks, a flat flange and interchangeable joints.
Last updated: October 2026
Key Features
Central, parallel and side necks at 5°, 10° and 15°
Flat flange with interchangeable joints
Flat ground surface for grease or an o-ring
Low expansion borosilicate glass, heavy wall
Heat and chemical resistant
Technical Specifications
Specification
Value
Material
Low expansion borosilicate glass
Necks
Five
Joint option A
Central 19/26, parallel 19/26, side 5° 24/29, side 10° 19/26, side 15° NA
Joint option B
Central 19/26, parallel 14/23, side 5° 14/23, side 10° 14/23, side 15° 29/32
Joint option C
Central 29/32, parallel 14/23, side 5° 14/23, side 10° 14/23, side 15° 29/32
About This Product
The Five Neck Reaction Flask Lid gives a central neck, a parallel neck and side necks at 5°, 10° and 15° on one flat flange. Several joint arrangements are listed, using 14/23, 19/26, 24/29 and 29/32 sizes. The flat ground surface can be greased or used with an o-ring.
Frequently Asked Questions
Q1. Which joint sizes does the Five Neck Reaction Flask Lid use? The listed arrangements combine 14/23, 19/26, 24/29 and 29/32 joints on the central, parallel and angled side necks.
