Bottle Caps For Aggressive Fluid Transfer

Customized inert bottle caps produce a system capable of sparging, filtering and transferring highly aggressive fluids from storage bottles to the inlets of an automated chromatography instrument. The PTFE bottle cap offers one inlet and three outlets, controlled by a valve mounted in the cap. The securing ring on the cap has a GL32 thread that rotates separately from the core, preventing the PTFE tubing from being twisted when the cap is screwed onto the bottle. The tubing has a combined filter and sparger (10 μm pore size) mounted at the bottom of the bottle for de-aeration and particle removal. Overall dimensions of the customized bottle caps are 40 mm × 65 mm.