Edwards Vacuum QSB2MAT is a high-vacuum butterfly valve in the Speedivac line, engineered for precise isolation within vacuum systems. The model designation QSB2MAT (also shown as QSB2 MAT) identifies this valve as part of Edwards’ QSB family designed for high-vacuum service. It serves to regulate flow and isolate sections of vacuum piping or chambers, enabling reliable shutoff in Edwards-compatible vacuum configurations.
