Angle stopcock with PTFE plug
Made of borosilicate glass
Angle stopcocks made of borosilicate glass with PTFE plugs, designed for controlling and shutting off the flow of gases or liquids in laboratory apparatus.
The angled configuration allows the fluid path to be redirected by approximately 90°, facilitating integration into laboratory systems and assemblies where space is limited or specific geometries are required.
The PTFE plug ensures smooth operation, reliable sealing, and good chemical resistance, while the borosilicate glass body provides thermal resistance and compatibility with a wide range of reagents.
To order
| Code | Description |
| GS/010/701 | Angle stopcock NS 12.5 Ø bore 1.5/2 mm PTFE plug |
Scientific blown glassware is manufactured through hot working of borosilicate glass, a material particularly suitable for laboratory applications due to its thermal and chemical resistance and its ability to withstand thermal shock. Shaping is carried out by localized flame heating, controlled rotation of the workpiece, and air blowing, allowing precise geometries, uniform wall thickness, and smooth transitions with minimal internal stress.
The main processing techniques include blowing, drawing, constriction, expansion, glass-to-glass sealing, and the manufacture of standard ground joints, fittings, hose connections, stopcocks, and special connections. Particular attention is paid to concentricity, wall-thickness uniformity, and the continuity of welded joints, all of which are essential for reliable performance during heating, vacuum operation, and fluid transfer.
After forming, the glassware undergoes controlled annealing to reduce internal stresses generated during hot working. This process improves mechanical stability and resistance to thermal shock, making the glassware suitable for both standard laboratory applications and custom experimental configurations.