This multi-turn valve derives its name from the rotating plug which forms the closing element.The plug may be cylindrical or truncated. In the open position, the fluid flows through a hole in the plug.Lubricated plug valves rely on a sealing compound injected between the plug and the valve body, whilst sleeved plug valves are fitted with a "soft" insert between the plug and the body.

The above attached product's specification is as follow:

Sleeve Type Soft Sealing Plug Valves:
Size: 1/2"-14"
Pressure Ratings: ANSI Class 150-900Lbs
Body: WCB, CF8(304), CF8M(316), CF3(304L),CF3M(316L), WC1,WC6,WC9,C5
End Conn.: RF,RTJ,BW,SW,NPT
Operation: Wrench, Worm Gear, Electric, Pneumatic
Design, Manufacture & Marking: API6D
Test: API598