Description
PTFE sleeves for ground joints and stoppers NS 29/32 are laboratory accessories intended for use with standard ground glass joints and matching stoppers of nominal size NS 29/32. Fabricated from polytetrafluoroethylene (PTFE), the sleeves form a practical interface component within laboratory glassware assemblies. Each unit is supplied as a pack of 1 pc and belongs to the laboratory material category. These sleeves support secure seating of NS 29/32 connections commonly encountered in flasks, condensers and related apparatus. The product originates from manufacturer Hecht and aligns with the stated material and dimensional specifications for ground-joint applications. PTFE construction matches the requirements indicated for such fittings in routine laboratory work. The single-piece format permits straightforward replacement or addition to existing glassware sets. Researchers employ these sleeves wherever NS 29/32 ground joints and stoppers require a PTFE intermediary layer. Compatibility with standard laboratory joint systems makes the item a direct match for inventories already containing NS 29/32 glassware. Overall the sleeves address everyday needs for PTFE joint accessories in scientific environments focused on ground-glass connections.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Nominal size: NS 29/32
- Product type: Sleeves
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Questions about Sleeves of PTFE, for ground joints and stoppers NS 29/32
What is this article?
Sleeves of PTFE, for ground joints and stoppers NS 29/32 is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.