Furon High Purity Metering Valves offer a means of precisely metering liquid or gas flow. They feature a “needle” design with a manual knob and fine-thread adjustment stem, allowing the end user to very precisely set the valve for the desired liquid or gas flow. Constructed from 100% virgin PTFE wetted parts, Furon Metering Valves are suitable for use with harsh, aggressive, or ultra-pure chemistry and most gases. Bubble-tight sealing assures no leakage in gas applications. Panel mount feature is standard on all Metering Valves, allowing the user to easily mount the valves on an instrumentation or control panel.