Overpressure/check valve with side glass tap 3 mm made of borosilicate glass 3.3

The high-quality Pressure Relief and Non-Return Valve with lateral 3 mm stopcock made of premium borosilicate glass 3.3 is a specialized safety and control element for sensitive laboratory setups. It reliably protects reaction and Schlenk systems from dangerous overpressure (max. 0.1 bar) while simultaneously preventing the uncontrolled backflow of air or gases into vacuum- or inert gas-supported apparatus. This ensures the integrity of sensitive reactions at all times.

A precisely spring-loaded spherical ground joint serves as the pressure relief valve, with a highly viscous sealing liquid ensuring tightness. The spring pressure is fully adjustable. For use as a non-return valve, the device can be operated under vacuum; an integrated riser tube reliably prevents contamination of the system by the sealing liquid. In the case of highly aggressive media, the spring can additionally be covered with an inert liquid for protection. The laterally integrated 3 mm glass stopcock allows for the precise regulation of gas flows.

Technical Features

• Material: Borosilicate glass 3.3
• Design: Spring-loaded spherical ground joint with adjustable spring pressure
• Joint Size Core: NS 14.5/23
• Glass Stopcock: Laterally integrated, 3 mm bore
• Maximum Overpressure: 0.1 bar
• Safety Features: Integrated riser tube to prevent contamination by sealing liquid
• Compatibility: Suitable for vacuum applications; spring coverable with inert liquid for aggressive media
• Delivery Unit: 1 piece

Important Information!

B2B Sales Only: Distribution is exclusively restricted to businesses, public institutions, and universities. Delivery to private individuals is excluded.

Product Images: Images are for illustrative purposes only and may differ from the actual scope of delivery. A representative model may be shown.