Soft-Start/Quick Exhaust Valve MS6-Sv-1/2-C-10V24-S for the Soft-Start and Quick Exhaust of System Components. Series=MS, Size=6, Grid Dimension=62 Mm, Safety Function= (* Exhausting, * Prevention of Unexpected Start-Up (Pressurisation)), Performance Level (Pl) = (* Exhausting/Category 1, Performance Level C, * Prevention of Unexpected Start-Up (Pressurisation) /Category 1, Performance Level E) , Festo