Packless Valves

Hoke packless valves series include both bellows sealed and diaphragm designs. Bellows sealed valves are commonly used in processes where fugitive emissions are of concern. The bellows or diaphragms are sealed to the valve body by either a gasket or a direct weld. The leak-tight seal that is achieved insures that maximum system integrity is maintained. Typical applications include high purity gas control, high temperature liquid metals, and critical gas analysis.