Description
SVS Screw Coupling GL 25 is a laboratory hose coupling engineered for secure threaded connections on GL 25 glass threads. It features a silicone-PTFE seal that establishes a reliable, chemically resistant link between tubing and larger laboratory glassware used in chemical, analytical and general fluid-handling workflows. The GL 25 thread size is widely employed on bigger bottles, vessels and apparatus, making this coupling suitable where a sturdy, leak-resistant joint is essential. Each unit is offered as a single piece with a net weight of 0,024 kg and a gross weight of 0,024 kg, remaining manageable within standard laboratory setups. The silicone-PTFE gasket combines the flexibility of silicone with the chemical resistance of PTFE to support stable sealing during repeated connection cycles. From manufacturer Witeg, this SVS screw coupling falls within the hose-couplings category and is intended for modular tubing systems based on GL-thread interfaces. Its construction enables straightforward assembly and disassembly while helping preserve joint integrity in routine research and quality-control operations. Originating from Germany, the coupling integrates effectively into glassware trains dedicated to controlled fluid transfer and sample handling.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Thread size: GL 25
- Seal: Silicone-PTFE
- Country of origin: Germany
Recently viewed
You may also like
Questions about SVS-screw thread adaptor coupling GL 25
What is this article?
SVS-screw thread adaptor coupling GL 25 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, Stopcocks & valves, Silicone tubing and Tubing accessories.
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.