Description
4-Way cross, stainless steel, DN 25 KF is a multi-port vacuum fitting for laboratory vacuum lines and modular manifold builds. The cross geometry provides four equal KF ports so branches, instruments, gauges, or pumps can be joined in a compact node without custom welding. Stainless steel construction supports routine laboratory vacuum practice where metal fittings are preferred for mechanical strength, cleanability, and compatibility with standard KF hardware. The DN 25 KF interface matches common Klein-flange (ISO-KF) clamps, centering rings, and seals used across analytical and process setups. Offered as a single piece from manufacturer WELCH, this component fits accessory and spare-part inventories for laboratory equipment that standardise on DN 25 KF connections. Typical uses include roughing-line junctions, instrument take-offs, and flexible experimental layouts in research, teaching, and technical workshops. Pair with matching DN 25 KF seals and clamps selected for the intended vacuum range and process media. The fitting helps keep manifold changes quick and repeatable when systems are reconfigured between methods or instruments.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: 4-way cross
- Material: Stainless steel
- Nominal size: DN 25 KF
- Connection standard: KF (ISO-KF)
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Questions about 4-Way Cross, Stainless Steel, DN 25 KF
What is this article?
4-Way Cross, Stainless Steel, DN 25 KF is the article on this page. Luminix Health distributes WELCH 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.