1. Completely No Leakage. ① As taper plug and Teflon sleeve contact face to gives absolutely no leakage. ② Steam Seal Structure has been designed to complement the controversial point of other plug valves. ③ As Steam Seal is not exposed externally it doesn’t rust and able to increase life span. 2. No Dead Space) No dead space in the fluid way can allow control of open / close function and gives semi-permanent life span. 3. 3. Few Maintenance and Repair needed ① No dead space doesn’t allow fluid to be clogged up. ② Re-adjusting of Seal Pressure by using Adjusting-Bolt After abrasion of Teflon Sleeve gives semi-permanent sealing function. ③ Metal lib around port has Self-Cleaning function to control steamy and solid material liquid. ④ Top Entry type can allow to be repaired on line. BODY / PLUG : ASTM A216 WCB, WCC, ASTM A351 CF8M, CF3M, CF8, CF3, CN7M, CD4M : ASTM A352 LCB – SLEEVE : PTFE, RTFE, TFM 4215 – ANSI 150LB 1/2″ ~ 24″ – ANSI 300LB 1/2″ ~ 24″ – ANSI 600LB 1/2″ ~ 12″ – JIS 10K, 20K, 40K – DIN PN10, PN16, PN25, PN40 Main Fluid : Toxic, Flammable, Explosive Fluid Line and No-leakage required Line