Description
Silicone seal for GL 18 thread without PTFE collar is a laboratory sealing component manufactured from silicone with an inner diameter of 8 mm. It is suitable for screw connection closures made of PBT and serves for the fixation of tubes as well as for sealing purposes. Available as 1 pc with a net weight of 0,001 kg and gross weight of 0,001 kg, this seal supports laboratory applications that involve securing pipes and ensuring effective seals. The product carries the DURAN ® registered trademark and comes from manufacturer Duran/DWK Life Sciences. Without a PTFE collar, it is specifically matched to PBT screw connection closures for GL threads. Applications focus on fixing tubes and providing sealing in experimental and analytical work. This silicone seal contributes to the reliable assembly of tubing systems in laboratory glassware and apparatus, offering a straightforward solution for connection integrity in standard scientific procedures involving GL 18 fittings.
This article is part of Lids & seals, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Silicone
- Thread size: GL 18
- Inner diameter: 8 mm
- EAN: 4032051048256
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Questions about Silicone Sealing Ring , for GL threads, without PTFE washer
What is this article?
Silicone Sealing Ring , for GL threads, without PTFE washer is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Lids & seals, inside Stoppers, caps & closures, in Labware.
Lids and seals are the covers of dishes, jars and tanks: a snap lid, a sealing film, a gasket. The seal is doing the work. A lid that only rests on the rim does not contain a volatile liquid.
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 Lids & seals. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Ground-joint glass stoppers 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.

