Tubing barbed check valves are constructed of chemical-resistant Kynar® body and Viton® valve for an inert high purity smooth and clear flow path. Use with acids, bases, water, chemical processing, and alcohols. Use for liquids, gases, pressure, and vacuum applications. Operating ranges are 0 to 50 PSI and –40 to 126°C. Autoclavable, zero maintenance, unit installs in any position. Prevents damage to equipment, pumps, and flow systems by preventing backflow.