The Dome Valve® from Macawber Group is used in a variety of applications. The unique closing and sealing action of the valve enables continuous, reliable operation where conventional valves can possibly fail.
Slurries, bulk powders, granules, lumps or dust-laden gases cause seat erosion and ineffective closure. The inflatable seal provides continuous wear compensation.
Thermal expansion prevents consistent valve seat action. The inflatable seal provides compensation throughout the temperature range of 0° to 660°F (350°C). Temperatures above this range may be accepted using special valve configurations.
The displacement action of the rotating dome within the valve housing allows rotation of a solid column of material so that a chokefilled Dome Valve® will close and seal through packed material.
Conventional seat valves cannot achieve operating reliability with any combinations of the severe application conditions listed, but the Dome Valve® does. It has achieved successful performance in more than 100,000 installations in a diverse array of applications.
Image credit: Macawber Group