PFA Lined Plug Valve

PRODUCT FEATURES:

• Robust, bi-directional, fully adjustable in-line and external sealing

• Low emission stem seal

• Body liner securely locked to housing to eliminate collapse in vaccum applications

• Plug liner securely locked to core to eliminate delamination

• Virgin, un-pigmented PFA liners standard

• Cavity free

• Non-Lubricated / Maintenance Free

• External epoxy coating

PRECISION CAST BODY, PLUG AND COVER

All KFTE Lined Plug Valves major pressure-bearing components are produced by investment casting, ensuring tight tolerance control and superior surface finish.

CORROSION PROTECTION

KFTE standard base model offers Carbon Steel body, plug and cover (ASTM A216 Gr. WCB, 1.0619). Even though KFTE offers the low porosity PFA (Perfluoroalkoxy) as standard, all cast parts have an epoxy-based coating prior to lining for added protection from corrosion attack due to permeation.

LOCKED -IN LINER

Lined Plug Valves feature a virgin, PFA lining applied by Transfer Molding and locked onto the castings with machined or cast dovetail-shaped grooves and anchoring holes. This helps prevent liner collapse in vacuum in vacuum applications, and blow-out in applications with a combination of high pressure/high temperature.

LARGE SEALING AREA

The interface between the tapered outer plug and the tapered inner body liner provides a 360° sealing area. This results in a tight shutoff. The seal is created due to compression between the plug and body, thus the valve is bidirectional and seals on both upstream and downstream sides simultaneously.