Description
Blank stopper NS29/32 mm is a PTFE closure component for ground-joint laboratory bottles used in HPLC solvent handling. Fitted with a lock nut, it seals NS29/32 ground joints securely when a port is not required, helping contain solvent vapours and reduce contamination risk to the analytical system. The stopper is manufactured from polytetrafluoroethylene (PTFE), a material chosen for chemical resistance toward aggressive organic solvents commonly employed in chromatographic workflows. Within the SCAT Safety Cap accessory range, this blank stopper supports safe solvent supply setups that have been refined for more than two decades to block harmful vapours and protect HPLC hardware. It is intended for use with SCAT ground-joint bottles and related safety closures, enabling flexible configuration of unused openings without compromising vapour control. Supplied as a single piece, the component suits routine laboratory solvent storage and transfer applications where reliable mechanical sealing and chemical durability are essential.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Blank stopper with lock nut
- Joint size: NS29/32 mm
- Material: Polytetrafluoroethylene (PTFE)
- Function: Vapour containment and port sealing
- Technical Information Sheet:
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Questions about Blind plug, NS29/32 mm
What is this article?
Blind plug, NS29/32 mm is the article on this page. Luminix Health distributes SCAT for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.