Bohmer 31210351 Basic Spray Tool

PRECISELY DESIGNED
AND PROVEN IN THE FIELD Böhmer ball valves with two- or three pieces split
body fulfil the requirements of the most common national and international standards.
6
3
5
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9
BASIC DESIGN FEATURES Seat Seal System The Böhmer ball valves provide spring supported
seats as a standard. The seats are pressed against the ball surface by the spring elements and ensure a tight
shut-off at low line pressure. In addition the sealing effect is assisted by the pressure in line. So the total
sealing force is the sum of the spring force and the force resulting from the pressure which increases
proportionally with the line pressure. Depending on applications and customer requirements the below
mentioned sealing systems can be delivered:
• soft seated
• primary metal seated / secondary soft seated
• metal to metal seated
Stem Sealing The sealing of the stem to the atmosphere is achieved by three independent sealing systems. The stem
sealing design ensures the anti-blow-out function, too.
Therefore, the three stem sealings are easily replaceable under full line pressure in open or closed position.
Trunnion Mounted Ball The standard design of Böhmer ball valves provides
a trunnion mounted ball for the nominal sizes 3 inch and higher. The maintenance-free bearings for stem
and trunnion are self-lubricating, thus ensuring a lower torque especially for high pressure ratings.
Fire Protection The design ensures the fire safe requirements in accordance with the international standards as API 6FA,
API 607, BS 6755 P 2 and ISO 10497.
Anti-Static Device The ball valve design includes an electric conductive
connection between the internal parts of the ball valve and the body, providing the anti-static function.
Emergency Sealing As an option, Böhmer ball valves can be delivered with an
additional emergency sealant injection for the seat-rings and stem sealing.