Special Features & Benefits Taper Plug Design - Lower operating torque compared to lubricated plug valves Plug Adjustment Option - Enables on-line maintenance Avoids downtime Large PTFE Sleeve - Bubble-tight shutoff No metal-to-metal contact Longer service life Positively-locked Sleeve - Reliable sealing through thermal cycles Wiping action between sleeve and plug - Durability in slurry lines Reverse-lip PFA Diaphragm - Self-adjusting dynamic stem seal provides assured sealing to atmosphere Rugged Body - Long and reliable service life No Cavities - Line Fluid does not get entrapped