Omnifit bottle cap traps harmful vapours

Integrated test strip indicates when to replace cap

Diba, a division of US-based Halma technology group that provides fluid-handling components, says its Omnifit Labware T-Series waste caps are able to maintain laboratory air quality and safety. The chemically inert caps trap and contain escaping vapour generated by HPLC and other lab solvents. A colour-changing indicator strip notifies lab staff when it is time to replace the cap.

The Omnifit Labware T-Series bottle cap from Diba

The T-Series waste caps come in a number of bottle thread types and connect to 1/8in OD semi-rigid tubing without requiring additional fittings. The tubing pushes straight through the cap Luer ports to create a liquid- and vapour-tight seal. Other tubing sizes can be accommodated using a variety of adapters, without compromising the seal. A separate ¼in-28 UNF thread port allows connection of a vapour trap and breakthrough indicator unit.

An activated carbon vapour trap isolates any solvent fumes and prevents escape from the system during pressure venting. When the trap becomes saturated, an integrated indicator strip turns red, alerting staff to replace the trap to prevent unintentional vapour breakthrough.

The product’s design also prevents over pressurisation. As liquid is collected in the waste bottle, either under pressure or gravity feed, vapour is automatically vented to the trap to prevent explosions or injury.

Diba is based in Danbury, Connecticut, US.