The PIAB 166660 Inline Vacuum Check Valve is a compact, inline one-way valve designed for vacuum piping, rated at 0.55 MPa. It installs directly in-line with the vacuum circuit to prevent backflow when the pump changes pressure or is shut down, protecting downstream components from reverse flow. In industrial vacuum systems, this valve provides reliable flow direction control and helps safeguard pumps and downstream equipment by quickly responding to changes in flow direction.
