Description
Ball flange holder, KF25 is a laboratory mounting component designed for secure positioning of ball-flange connections on flat-flange vessels and related glass assemblies. Sized for the KF25 interface, it supports stable alignment of distillation, extraction and general process glassware where a reliable flange hold is required. Supplied as a single piece with a unit weight of 0,220 kg, the holder integrates into modular lab setups used for reaction work-up, solvent handling and apparatus assembly. In everyday laboratory practice it helps keep flange joints correctly seated during heating, cooling or vacuum-assisted operations without adding bulk to the glass train. The component belongs to the flat-flange vessel accessory range and is intended for use with matching KF25 ball-flange parts. Manufactured by Lenz, it is a practical hardware element for teaching labs, research groups and production-support facilities that standardise on KF-style flange geometry. Clear KF25 designation simplifies spare-part selection and inventory control when building or maintaining multi-neck flasks, receivers and connecting pieces. One unit is supplied per pack for straightforward replacement or new apparatus builds.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Product type: Ball flange holder
- Flange size: KF25
- Weight: 0,220 kg
- Application area: Flat flange vessels
- Use: Distillation and extraction glassware
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Questions about Ball flange holder, KF25, 1 unit(s)
What is this article?
Ball flange holder, KF25, 1 unit(s) is the article on this page. Luminix Health distributes Lenz 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.