Beschrijving
Hose connector, stainless steel, DN 40 KF - DN 20 is a laboratory vacuum accessory that couples a DN 40 KF flange interface to a DN 20 hose connection. Built from stainless steel, it forms a robust metal link between larger KF flange ports and flexible tubing on pumps, manifolds and process equipment. The DN 40 KF to DN 20 layout allows precise size matching when installing or replacing vacuum fittings in laboratory systems. Supplied as one piece, it is easy to keep on hand as a spare for apparatus maintenance. This hose connector from manufacturer WELCH forms part of the accessories and spare-parts offering for laboratory equipment and supports everyday coupling where stainless steel is required. It assists in keeping vacuum or process lines orderly in filtration, drying, analytical and general laboratory applications that use KF standards. Correct flange and hose sizing streamlines assembly and service work. The stainless-steel construction is suited to laboratory environments that need durable, reusable connectors between KF flanges and hose lines.
This article is part of Other instruments & spare parts.
Key features
- Pack size: 1 pc
- Product type: Hose connector
- Material: Stainless steel
- KF flange: DN 40
- Hose connection: DN 20
- Interface: DN 40 KF - DN 20
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Questions about Hose Connector, Stainless Steel, DN 40 KF - DN 20
What is this article?
Hose Connector, Stainless Steel, DN 40 KF - DN 20 is the article on this page. Luminix Health distributes WELCH for laboratory use. It sits in Other instruments & spare parts, in Instrumenten.
Some instruments do not sit cleanly in one measuring principle, and every instrument eventually needs a spare: a lamp, a fuse, a seal, a knob. The spare has to be the part for that model. A near match is a different part. Calibration of the instrument, once it measures, belongs with EURAMET, BELAC and the BIPM.
Which category should I open next?
The category is Other instruments & spare parts. The catalogue is Instrumenten.
Shelves beside this one are Instrumenten.
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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.

