Description
BOLA vacuum stopcocks NS 19/26 with Ø 8 mm PTFE connections in SAFE LAB design are laboratory vacuum stopcocks for controlled isolation in glassware and tubing assemblies. Each unit provides a ground joint core NS 19/26, a stopcock bore of 2 mm and connections for tube or hose with an outer diameter of 8 mm. The stopcock is made from polytetrafluoroethylene (PTFE), giving chemically resistant contact surfaces for many laboratory media handled under vacuum. An integrated Combi nut in Safe-Lab configuration makes it straightforward to secure and release the conical ground joint during assembly and dismantling, without tools. Supplied as 1 pc with a net weight of 0,155 kg, the component is intended for everyday use as a cone stopcock or shut-off valve on vacuum lines, distillation setups and related apparatus. These BOLA stopcocks from manufacturer Bohlender suit research, teaching and analytical laboratories that rely on standard NS taper joints and prefer PTFE wetted parts for vacuum service. The design focuses on reliable sealing, simple joint handling and compatibility with common laboratory tubing diameters.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Ground joint: NS 19/26
- Stopcock bore: 2 mm
- Connection outer diameter: 8 mm
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Questions about BOLA Vacuum Stopcocks, NS 19/26 Ø 8 mm PTFE, with SAFE LAB-system
What is this article?
BOLA Vacuum Stopcocks, NS 19/26 Ø 8 mm PTFE, with SAFE LAB-system is the article on this page. Luminix Health distributes Bohlender 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.
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.