PTFE Sleeved Plug Valve

PTFE Sleeved Plug Valve


Sleeved Plug valves are robust in construction and easy In-Line maintainability. These valves are non-lubricated quarter-turn valves that achieve sealing through the use of a compressible sleeve as a sealing member. In many applications they operate virtually maintenance free for decades. Sleeved plug valves are used for on/off and throttling service in demanding process applications with media temperatures ranging from -20°F to 600°F. These valves are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc.
These valves are Bi-directional flow, simple actuation, lightweight, compact design, and multiport configurations, all facilitate for improved system design. 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. As the plug rotates, the 360° port lips provide a self-cleaning action to remove scaling and adhering media.


Technical Table
Design Standard API 6A, ASME VIII, API 6FA
Pressure/Temperature Chart ASME B16.34
Face to face Dimension API 6D, ASME B16.10,
Testing Standard API 6A / ISO 5208
Flange Details ASME B16.5 / API 6A
Size Range 2 1/16” to 4 1/16”
Pressure Classes 2000 – 10,000 PSI
ASME Class 150 -1500
Product Spec Level PSL 1, 2, 3, 3G & 4
Materials 4130 / 410 / A487 4C / CA15 /
CF8M / Duplex / Super Duplex / Inconel
Trims API Class AA ‐ HH
Seats TCC coated
Ends Flanged / Welded





·         Bi-directional in-line bubble-tight seal independent of line pressure

·         Multiple external bubble-tight seals independent of line pressure.

·         Direct mechanical three-point adjustment independent of line pressure

·         Independent travel stops

·         Full encapsulation and retention of all leading edges of PTFE sleeve and top seal components.

·         Full lip at port openings protects PTFE sleeve.

·         Contoured waterway ensures minimum flow turbulence characteristic.

·         No body cavities to entrap flow media.
Positive flow direction indication