Description
b.safe ventilation valve is a polypropylene valve housing with UNF 1/4'' 28G connection thread matching b.safe Caps. The cover features a ventilation opening and Luer-lock connection, and an integrated check valve is combined with an upstream membrane of porous PTFE (1 µm). A clip-on change indicator is included with the assembly. Offered in a pack of 100 pieces from manufacturer Bohlender, the valve supports controlled ventilation on compatible b.safe Cap installations in the laboratory. The porous PTFE membrane and check-valve arrangement provide the defined air path at the cap interface, while the UNF thread ensures a direct mechanical fit to the designated ports. Service life is stated as 6 months in conjunction with the change indicator. Typical use is on laboratory containers and fluid-handling setups that rely on b.safe Caps for solvent or reagent management, where a dedicated ventilation component with membrane protection is required. Housing material is PP; the upstream barrier is specified as porous PTFE.
This article is part of HPLC fittings, tubing & inline filters, in HPLC columns & accessories.
Key features
- Pack size: 100 pc(s)
- Material: PP housing
- Connection thread: UNF 1/4'' 28G
- Membrane: porous PTFE, 1 µm
- Interface: ventilation opening with Luer-lock and check valve
- Service life: 6 months
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Questions about b.safe Air Valve, UNF 1/4'', (PU=100 pcs.) PP, with connection UNF 1/4 for
What is this article?
b.safe Air Valve, UNF 1/4'', (PU=100 pcs.) PP, with connection UNF 1/4 for is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in HPLC fittings, tubing & inline filters, inside HPLC columns & accessories, in Chromatography equipment.
HPLC fittings and tubing are numbered by bore. A wide bore after the column broadens the peaks. Finger-tight and wrench fittings, and stainless against PEEK, are different pressure ratings. An inline filter is the last screen before the column, and it clogs on purpose so the column does not.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
Which category should I open next?
The category is HPLC columns & accessories. The sub-category is HPLC fittings, tubing & inline filters. The catalogue is Chromatography equipment.
Shelves beside this one are HPLC columns, HPLC guard columns and HPLC 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

