Description
3/2-way ball valve, manual on/off, DN 16 KF is a laboratory vacuum accessory for directional isolation and flow switching in systems that employ KF flange connections. The valve provides a three-port arrangement operated by hand, supporting open, closed and diverted path selection for gas or vapour streams in research and analytical laboratories. It is supplied as one piece for straightforward addition or replacement within DN 16 KF vacuum circuits. Manual ball-valve actuation suits bench installations, pump lines and apparatus manifolds where operators require immediate control without motorised drives. This accessory from manufacturer WELCH is part of the accessories and spare parts offering for laboratory equipment and is intended for use alongside compatible KF flanges, vacuum pumps and related hardware. The DN 16 KF format aligns with small-to-medium vacuum plumbing common in laboratory environments. The 3/2-way design enables flexible port routing while maintaining clear manual on/off states during sample handling, evacuation or system maintenance. Laboratories can select the valve wherever a compact multi-port manual ball valve with KF geometry is required.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Valve type: 3/2-way ball valve
- Operation: Manual on/off
- Connection: DN 16 KF
- Product group: Accessories and spare parts for laboratory equipment
- Function: Directional flow control
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Questions about 3/2-Way Ball Valve, Manual On/Off, DN 16 KF
What is this article?
3/2-Way Ball Valve, Manual On/Off, DN 16 KF is the article on this page. Luminix Health distributes WELCH for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
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 Stopcocks & valves. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, 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.
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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.