easy-e™ ET, EAT, and ETR general-purpose control valves are used for throttling or on-off control of a wide variety of liquids and gases. All three valve designs have single ports, balanced valve plugs, and cage guiding. Metal-to-PTFE seating for stringent shutoff requirements is standard in all valves except those with Cavitrol™ III cages. Metal-to-metal seating for higher temperatures is standard for valves with Cavitrol III cages and optional for all other valves. The temperature limits of ET valves can be extended above 232°C (450°F) by using PEEK anti-extrusion rings in combinat
ion with a spring-loaded PTFE seal.