Manual & Pneumatic Vacuum Ball Valves
MKS Vacuum Ball Valves are designed to have a straight-thru flow path and are less sensitive to particulate contamination then other vacuum valve styles. The ball is contained in a central vacuum cavity and is opened and closed by turning the stem 90° back and forth (1/4 turn). The sealing seat for the ball wipes the ball clean as it is opened and closed. This feature provides a "self-cleaning" action that makes MKS Ball Valves effective in particle-rich effluent streams. The MKS ball valve design has a fully stabilized stem that eliminates stem leaks common to lower performance ball valves. Also available in a 3-way, L-port, style that diverts flow from either of two inlet ports to a single, common outlet port.