Description
Thread adapter Type 31 is a polytetrafluoroethylene (PTFE) laboratory fitting that converts a B53 female thread to a GL45 male thread. This high-performance adapter establishes a chemically inert, mechanically secure link between components that employ dissimilar thread standards, enabling reliable fluid connections in demanding laboratory environments. Fabricated entirely from PTFE, the piece exhibits outstanding resistance to aggressive solvents, acids and bases routinely used in analytical chemistry. The Type 31 configuration from manufacturer SCAT provides an effective bridge from B53-threaded equipment to the ubiquitous GL45 bottle-neck system found on many laboratory vessels and closures. Delivered as a single unit, the adapter supports flexible assembly of solvent delivery, waste routing and sample-transfer lines where maximum chemical compatibility is required. Its inert PTFE construction minimises extractables and maintains dimensional integrity across a broad range of laboratory conditions. Ideal for HPLC, sample preparation and corrosive-media handling, the adapter allows laboratories to integrate mixed thread systems without compromising purity or leak tightness. The precise B53-to-GL45 geometry ensures correct mating and stable seating in everyday use.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Thread adapter Type 31
- Material: Polytetrafluoroethylene (PTFE)
- Thread connection: B53 (female) to GL45 (male)
- Country of origin: Germany
- Technical Information Sheet:
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Questions about Thread adapter, Type 31
What is this article?
Thread adapter, Type 31 is the article on this page. Luminix Health distributes SCAT 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.