Reaction Vessel Lid with Flange and Center Neck – Borosilicate Glass 3.3

The reaction vessel lid with flange and central neck provides a professional closure solution for reaction vessels with flat flange connections. Manufactured from high-quality borosilicate glass 3.3, the lid ensures optimal chemical resistance, thermal stability and long-term reliability in laboratory operation.

Construction and Design

The lid features a precisely manufactured flange according to DIN standard in sizes DN 60, DN 100, DN 120, DN 150, and DN 200. The central neck is equipped with standardized ground joints (NS) – optionally NS 14.5/23, NS 29/32, or NS 45/40 – enabling the connection of stirrer shafts, thermometers, dosing devices, or other laboratory components.

The flange connection ensures a secure and tight seal of the reaction vessel. In combination with suitable gaskets and clamping devices, a closed system is created that operates safely even under vacuum or slight overpressure.

Material: Borosilicate Glass 3.3

Borosilicate glass 3.3 is characterized by low thermal expansion, high thermal shock resistance (ΔT = 100 K), and excellent chemical resistance to acids, bases, and organic solvents. The material is suitable for applications up to +500 °C for short periods and meets the stringent requirements of laboratory and synthesis technology.

Application Areas

• Chemical synthesis and reaction technology
• Crystallization and precipitation
• Temperature-controlled reactions with stirrers
• Sampling under controlled conditions
• Vacuum applications and inert atmosphere control
• Pharmaceutical and fine chemical production

Technical Features Overview

• Flange according to DIN standard: DN 60, DN 100, DN 120, DN 150, DN 200
• Center neck with standard taper: NS 14.5/23, NS 29/32, NS 45/40
• Material: Borosilicate glass 3.3
• Temperature resistance: up to +500 °C (short-term)
• Highly chemically resistant to almost all laboratory media
• Precision manufacturing for secure sealing
• Compatible with standard laboratory components

Quality and Workmanship

The reaction vessel lids are manufactured according to the high-quality standards of laboratory glassware production. Careful control of standard tapers and flange dimensions guarantees precise integration into existing laboratory setups.

Important Notes!

Sales to Business Customers Only: Distribution is exclusively to companies, public institutions and universities. Supply to private individuals is excluded.

Product Images: Images are for illustration purposes and may differ from the actual scope of delivery. An exemplary variant may be shown.