Description
Pouring ring for screw-thread bottles in blue polypropylene is a laboratory bottle accessory that supports clean, controlled dispensing and a reliable seal when closing glass laboratory bottles. Manufactured from blue polypropylene, the ring is intended for use with screw-thread laboratory bottles such as DURAN bottles, where it helps users achieve high tightness on closure and reduces drips during pouring. The blue colour coding aids quick visual identification among other bottle accessories on the bench. Offered as a pack of 10 pieces from manufacturer Dinkelberg, these pouring rings are practical consumables for analytical, preparative and teaching laboratories that standardise on screw-thread media bottles. They integrate into everyday bottle handling workflows—media preparation, sample storage and reagent transfer—without altering the bottle thread geometry. The polypropylene construction suits typical laboratory chemical environments associated with standard glass media bottles, providing a simple, replaceable interface between bottle neck and closure for consistent sealing performance.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Product type: pouring ring for screw-thread bottles
- Material: blue polypropylene
- Colour: blue
- Sealing: high tightness on closure
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Questions about Pouring Ring for Screw Top Vials GL45, blue, 10/PK
What is this article?
Pouring Ring for Screw Top Vials GL45, blue, 10/PK is the article on this page. Luminix Health distributes Dinkelberg 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?
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.