BALL VALVES :: FULLY WELDED TRUNNION MOUNTED MMVI is glad to show you its range ball valves TRUNNION FULLY WELDED. - Size: from 2'' to 48'' - Rating: from ANSI 150 to ANSI 2500 - Materials: from carbon steel to superduplex - Types of end connection: flanged end, buttwelding end, ring joint end; - Soft and metal to metal seals - Applications: Gas, oil and petrochemical service The valve body is closely shaped around the ball to produce a lightweight robust design. Valves are available in full or reduced port. The stem seal integrity is achieved with three seals, two o-rings and a firesafe graphite gasket. Anti blow out stem design permits replacement of the graphite gasket whilst the valve is under pressure. Provision of emergency sealant injection is fitted as standard. All valves are designed to meet the anti-static requirements of BS 5351.