We are offering ptfe sleeved non-lubricated taper plug valves.Salient features : 1) design more economical, flexible, and compact fluid handling systems. 2) bi-directional flow, simple actuation, lightweight, compact design, and multiport configurations all facilitate improved system design. 3) superior, longer-lasting in-line sealing. 4) the inert ptfe sleeve completely surrounds the plug. The sleeve provides a large, circumferential sealing surface from port to port. Open, closed, or rotating, the seal is assured. No ball or gate valve can match this sealing power. Secure sealing with no cold-flow, deformation, or rotation of the sleeve. 5) the sleeve is securely nestled in the valve body. High pressure ribs, top and bottom retention, and 360 port lips all assure sleeve containment. 6) no seizing. No sticking. 7) as the plug rotates, the 360 port lips provide a self-cleaning action to remove scaling and adhering media.