Locked in liner
The 2 way class 150 lined plug valve offers a melt processible PFA that is locked into cast grooves, machined
slots, and cast holes in the body and plug castings. This helps prevent liner
collapse in vacuum conditions and blow out in high pressure conditions in
conjunction with high temperature.
Cavity-free design
Cavities are absent in open and closed positions. This prevents accumulation of
particulate matter and makes the valve ideal for slurry applications.
Large seal area
The seal from this plug valve is created by the interface between the plug and the body liner. The
outside of the plug and the inside of the body cavity are at a 2° taper.
The wedge action results in a tight shut-off. Because the seal is created due
to compression, the valve is bi-directional and seals on both, upstream and
downstream sides.
Double atmospheric seal
The primary seal of the plug valve is between the plug and body liner. The secondary seal is an
inverted V-lip arrangement which is pressure assisted. This ensures excellent
seal to atmosphere.
In-line adjustment
The three adjustment bolts in the top cover can be utilized to improve in-line
sealability. These bolts have to be tightened in order to push the plug down
and create a tight shut-off. Downtime can be drastically reduced.
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