Description
Check valve in polypropylene (PP) for tubing of diameter 7,8/10 mm provides one-way flow control in laboratory fluid lines. The compact PP body is intended for flexible hose connections in the stated size range, helping prevent reverse flow when pumps stop, reservoirs are repositioned or pressure equalises in the line. Polypropylene offers a practical balance of chemical resistance and light weight for aqueous media and many common lab reagents within the limits of PP compatibility. Typical uses include protecting instruments and upstream vessels from back-siphoning, organising simple transfer circuits, and adding passive non-return behaviour without electrical actuation. This single-piece unit from manufacturer Witeg is straightforward to integrate into existing tubing setups where a 7,8/10 mm hose interface is required. Net and gross weight are each 0,007 kg, reflecting a small inline component suited to bench and apparatus work. Select tubing that matches the stated diameters for a secure fit, and verify medium compatibility with polypropylene before continuous service in aggressive solvents or strong oxidisers.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Check valve
- Material: PP (polypropylene)
- Tubing diameter: Ø 7,8/10 mm
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Questions about Non-return valve PP Hose Ø 7,8/10mm
What is this article?
Non-return valve PP Hose Ø 7,8/10mm is the article on this page. Luminix Health distributes Witeg 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.