Description
BOLA glass flange metal adapter NW 25 with outer diameter 47 mm and through-bore 27 mm is a compact sealing interface for laboratory glass flange connections. The body combines PTFE with special silicone placed behind PTFE sealing lips, so the seal retains elasticity under expansion and contraction while the wetted path remains PTFE only. A circumferential PTFE collar eases assembly and helps the gasket seat accurately on the flange face. Universal chemical resistance follows from exclusive medium contact with PTFE, making the part suitable for a wide range of laboratory fluids and solvents. Effective seal height is approximately 3 mm, supporting a low-profile, leak-resistant joint on matching NW 25 hardware. Offered as a single piece with a net weight of 0,0076 kg, this adapter from manufacturer Bohlender fits routine glassware and apparatus work where a chemically inert, mechanically compliant flange seal is required. Dimensions and materials are specified for precise fit rather than generic substitution, supporting reproducible connections in research and process laboratory setups that rely on PTFE-faced sealing elements.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Material: PTFE and silicone
- Nominal width: NW 25
- Outer diameter: 47 mm
- Through-bore: 27 mm
- Effective seal height: approx. 3 mm
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Questions about BOLA Glass Flange Metal Adaptors, NW 25 OD 47 mm, bore dia. 27 mm, sealing heigh
What is this article?
BOLA Glass Flange Metal Adaptors, NW 25 OD 47 mm, bore dia. 27 mm, sealing heigh is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
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 Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, Stopcocks & valves, 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. Delivery across the EU, two to five days if in stock. 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.
