Vacuum Valves

SECUVAC Vacuum Safety Valveshh 2bøDhh 1h 2bDaThese solenoid right-angle valves werespecially developed for use with rotaryvacuum pumps which are not equippedwith a built-in anti-suckback valve.The SECUVAC safety valve protectsthe vacuum system against unplannedventing via the backing pump in caseof a power failure and it ensures thatthe vacuum system remains sealeduntil the backing pump, after it hasrestarted, has evacuated the connectinglines.h 1aaaDimensional drawing for the SECUVAC valves withISO-KF small flangesDimension Table (ISO-KF)h 2 mm 24 27 26DN 16 ISO-KF 25 ISO-KF 40 ISO-KFa mm 40 50 65b mm 49 49 49D mm 44 56 82h mm 138.6 161.8 178.3h 1 mm 62.3 82.5 100.0Advantages to the UserTwo valve functions in one:- Fast-closing high vacuum isolationvalve for separating the vacuumchamber or a vapor jet pump (adiffusion pump, for example) fromthe backing pumpDimensional drawing for the SECUVAC valves withISO-K clamp flangesDimension Table (ISO-K)h 2 mm 18.2 36.2DN 63 ISO-K 100 ISO-Ka mm 88 108b mm 49 49D mm 124 164h mm 220.5 263.5h 1 mm 150 175Typical Applications- Safety isolation valve betweenbacking pump and vacuum chamberor vapor jet pumps (protectionof the vacuum chamber againstventing in the event of a power failure)- Venting valve for venting of thevalve’s chamber and thus thepump (backing pump)- Immediate closing action uponpower failure- Opening action only after the intakeline has been evacuated- Delayed isolation of the vacuumchamber and venting the vacuumpump (negligible “gulp”)Oerlikon Leybold Vacuum Full Line Catalog27 C14