Lubricated Plug Valves - Global Supply Line
Lubricated Plug Valves - Global Supply Line
Lubricated Plug Valves - Global Supply Line
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Model SAPM / SAPL<br />
Standard Type <strong>Lubricated</strong> Steel <strong>Plug</strong> <strong>Valves</strong><br />
The standard style has the stem<br />
extended from the top of the valve.<br />
The valves have a bolted cover which<br />
retains the plug in case the gland is<br />
removed. The gland maintains the<br />
pressure in the cover and prevents any<br />
leakage through the stem as well as<br />
retaining the plug in position.<br />
page 22<br />
The gland supports the packing and acts<br />
as an anti-friction bearing to prevent<br />
stem packing rotation. <strong>Plug</strong> lubrication<br />
grease is injected through a nipple (fitted<br />
with a check valve). Greasing can be<br />
done when the valve is under pressure.<br />
The plug grooves avoid grease leakage<br />
into the line as during rotation each<br />
groove is isolated from the other<br />
grooves. The stem is provided with a<br />
open/closed position indicator.<br />
Locking device is optional.<br />
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