Valve body made of PP with connection (thread UNF ¼" 28G) suitable for b.safe caps. Lid with aeration opening and Luerlock connector, integrated non-return valve with upstream porous PTFE membrane (1 μm), including clip-on service life indicator.

• PP for high resistance and fire class rating V-0
• Non-slip grip area, eroded surfaces and gripping grooves for easy installation
• Freely movable and individually positionable for all round visibility
• Activation of service life through touch of the button and/or individual marking on the back side
• Centring pin for easy installation

For extraction of eluents. The b.safe air valve is especially adapted to the flow rate in HPLC. The integrated non-return valve avoids evaporation of solvents and lets flow ambient air into the bottle in case of vacuum. The upstream porous PTFE membrane restrains pollutant particles and other contaminations from outside.

The 6 months service life of the air valve can be easily monitored through either activating the display on the service life indicator and exchanging the valve in case of completely red colouring or documentation of the exchange date by hand and clip on the service life indicator at the valve.