Description
Feed-through (silicone) with inner diameter 40 mm is a moisture-tight laboratory accessory for passing lines or sensors through a chamber rear wall while limiting humidity exchange. The silicone design and matching silicone stopper allow the 40 mm opening to be closed when the passage is not in use, supporting stable climate conditions in humid or controlled-atmosphere applications. Placement is individual in the rear wall; the required position should be stated when ordering so the feed-through matches the intended layout. Supplied as one piece from manufacturer Memmert, this component suits laboratory material configurations that need a larger, sealable aperture for tubing, probes or multi-line bundles. The moisture-tight character is relevant for climate chambers, stability testing and other environments where uncontrolled moisture ingress must be avoided. Originating from Germany, the unit addresses practical connection needs in research and quality-control laboratories that specify a 40 mm silicone feed-through with stopper closure and flexible rear-wall positioning.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Type: Silicone feed-through
- Inner diameter: 40 mm
- Sealing: Moisture-tight with silicone stopper
- Placement: Individual in rear wall (position to specify)
- Country of origin: Germany
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Questions about Entry port (silicone), 40 mm clear diameter, moisture tight, can be closed by si
What is this article?
Entry port (silicone), 40 mm clear diameter, moisture tight, can be closed by si is the article on this page. Luminix Health distributes Memmert for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
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.