Description
Long weld stub in stainless steel, DN 25 KF, 52 mm is a vacuum-compatible connection component for laboratory and process setups that use KF (small flange) geometry. The extended stub length of 52 mm supports secure welding into tubing, manifolds or vessel walls while keeping the DN 25 KF flange free for standard clamp, centring ring and seal assemblies. Fabricated from stainless steel for corrosion resistance and mechanical stability under typical laboratory vacuum conditions, the part integrates cleanly into existing KF pipelines and apparatus. Supplied as a single piece from manufacturer WELCH, it is intended as an accessory or spare for vacuum pumps, chambers and related laboratory equipment where a durable, weldable KF interface is required. The DN 25 KF format matches common European small-flange standards, simplifying interchange with other KF components of the same nominal size. Use this long weld stub wherever a permanent stainless-steel transition from welded pipework to a demountable KF joint is needed in research, analytical or technical vacuum installations.
This article is part of Trays, bowls & tubs, in Dishes, crucibles & porcelain.
Key features
- Pack size: 1 pc
- Product type: Long weld stub
- Material: Stainless steel
- Flange size: DN 25 KF
- Stub length: 52 mm
- Connection standard: KF small flange
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Questions about Long Weld Stub, Stainless Steel, DN 25 KF, 52mm
What is this article?
Long Weld Stub, Stainless Steel, DN 25 KF, 52mm is the article on this page. Luminix Health distributes WELCH for laboratory use. It sits in Trays, bowls & tubs, inside Dishes, crucibles & porcelain, in Labware.
A laboratory tray, bowl or tub is an open vessel for holding, staining, drying or carrying many small items at once. Polypropylene trays resist a knock and many aqueous liquids. Porcelain takes heat. The useful numbers are the bottom size and the depth, because that is the working area.
A dish is an open vessel for drying, evaporating or holding a solid. Porcelain and glazed ceramic take a higher temperature than borosilicate glass, which is why a crucible, not a beaker, goes into a furnace. A watch glass covers, or holds a small amount for drying. A mortar is for grinding. The temperature and the chemical, not the shape alone, choose the material. Laboratory ware of this family is listed under ISO laboratory ware.
Which category should I open next?
The category is Dishes, crucibles & porcelain. The sub-category is Trays, bowls & tubs. The catalogue is Labware.
Shelves beside this one are Crucibles, Mortars & pestles, Watch glasses & crystallising dishes, Evaporating dishes and Dishes (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.