Leybold 288 02 B2 Vacuum Valve

The Leybold 288 02 B2 is a sealed vacuum valve, likely part of Leybold’s SECUVAC series. These solenoid right-angle valves are designed for use with rotary vacuum pumps that lack built-in anti-suckback valves. They protect the vacuum system against unplanned venting via the backing pump in case of a power failure, ensuring that the vacuum system remains sealed until the backing pump has restarted and evacuated the connecting lines