Vacuum Gate Valves: High-Conductance Isolation for HV & UHV Systems
Vacuum Gate Valves: High-Conductance Isolation for HV & UHV Systems: The Vacuum Gate Valve is one of the most critical components in any high-performance vacuum system, renowned for its ability to provide a nearly unobstructed passage when open and a hermetic seal when closed. Unlike angle valves, which require a 9 0 ∘ turn, the gate valve is a linear-motion device where a flat disc, or "gate," is retracted completely out of the gas stream. This straight-through design minimizes flow resistance, maximizing the conductance and, consequently, the pumping speed—a vital requirement for large chambers and high-throughput industrial processes. These valves are indispensable in applications demanding quick, reliable isolation of major sections of a vacuum system, such as isolating a process chamber from a pump stack or separating a load lock from a main processing tool. Used extensively in semiconductor fabrication , thin-film deposition, and particle accelerators, the select...