Air Valves on eluent flasks

The b.safe Air Valve provides the necessary pressure compensation during solvent extraction. Through the inner PTFE membrane (pore size 1 μm), it withholds even smallest dust particles from eluents and lets flow as less air as necessary.

After six months, an exchange has to be made to ensure the reliability of the system. In order not to miss this moment, the Air Valve has a practical service life indicator. At the touch of the button, the Timestrip is released which colours the firstly white display into a red one. Clever detail: At the end of the period, „CHANGE“ is clearly written. In order to ensure the documentation even in GMP/GLP regulated laboratories, there is a rear classic labelling field to be able to write down manually the exchange date and, if necessary, one´s initials.