Nuova DLM Valves side entry trunnion mounted are available in full or reduced port.
Independent spring loaded seats are always in contact with the ball to provide an effective tight seal even at low pressure.
This feature permits the unique facility of double block and bleed with the valve in either fully open of closed position under line pressure.
Anti blow out stem design permits the replacement of stem seal with the valve in fully closed position. The stem seal integrity is achieved by the use of three seals, two o-rings and a firesafe graphite gasket. The graphite gasket can be replaced with the valve under pressure.