Description
Seals for screw caps with hole are silicone rubber sealing inserts for GL 32 screw caps with an opening diameter of Ø 17,0–19,0 mm. Placed in screw caps that incorporate a hole, they let tubing or probes pass into laboratory bottles and vessels while forming a flexible seal at the opening. Silicone rubber material suits everyday use with containers, bottles, tins and canisters in the seals, hose connectors and accessories range. Each unit pack holds 2 pc(s) and the stated weight is 0,002 kg. GL 32 threading matches standard laboratory bottle necks, and the 17,0–19,0 mm hole range is intended for correspondingly sized tubing or fittings used in sampling, transfer or venting setups. Available from manufacturer DWK Life Sciences, the seals support controlled access through the cap without removing it entirely. They integrate with common glass and plastic bottle systems in general laboratory practice. Specifying thread size together with the diameter band makes it straightforward to choose the right seal for existing GL 32 caps and matching hose connections.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 2 pc(s)
- Material: Silicone rubber
- Thread size: GL 32
- Hole diameter: Ø 17,0–19,0 mm
- Weight: 0,002 kg
- Product type: Seals for screw caps with hole
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Questions about Seals for screw caps with hole, Silicone rubber, GL 32, Ø 17.0-19.0 mm
What is this article?
Seals for screw caps with hole, Silicone rubber, GL 32, Ø 17.0-19.0 mm is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.