Fully Welded Ball Valves - boehmer.de
Fully Welded Ball Valves - boehmer.de
Fully Welded Ball Valves - boehmer.de
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Design<br />
<strong>Fully</strong> <strong>Wel<strong>de</strong>d</strong> <strong>Ball</strong> Valve<br />
Böhmer fully wel<strong>de</strong>d ball valves fullfil the requirements<br />
of the most common national and international<br />
standards.<br />
Fire Protection<br />
The <strong>de</strong>sign assures the fire safe requirements in accordance<br />
with the international standards as API 6FA, API<br />
607 und BS 6755 P 2<br />
Trunnion Mounted <strong>Ball</strong><br />
The standard <strong>de</strong>sign of Böhmer ball valves provi<strong>de</strong>s<br />
a trunnion mounted ball for the nominal sizes 3 inch<br />
and higher.<br />
The maintenance-free bearings for stem and trunnion<br />
are self-lubricating, thus assuring a lower torque<br />
especially for high pressure ratings.<br />
Anti-Static Device<br />
The ball valve <strong>de</strong>sign inclu<strong>de</strong>s an electric conductive<br />
connection between the internal parts of the ball<br />
valve and the body, providing the anti-static function.<br />
Stem Sealing<br />
Bill of Material<br />
➀ Body<br />
➁ <strong>Ball</strong><br />
➂ Stem<br />
➃ Trunnion<br />
➄ Seat-rings<br />
The sealing of the stem to the atmosphere is achieved<br />
by three in<strong>de</strong>pen<strong>de</strong>nt sealing systems. The stem<br />
sealing <strong>de</strong>sign ensures the anti-blow-out function,<br />
too. Therefore, the three stem sealings are easily<br />
replaceable un<strong>de</strong>r full line pressure in open or closed<br />
position.<br />
Emergency Sealing<br />
➅ Self lubricating bearings<br />
➆ Anti blow-out <strong>de</strong>vice of<br />
the stem<br />
➇ Top mounting flange for<br />
gearboxes or actuators<br />
➈ Emergency sealing injection<br />
as an option<br />
As an option, Böhmer ball valves can be <strong>de</strong>livered<br />
with an additional emergency sealing injection for<br />
the seat-rings and stem sealing.
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