Features a secure bubble-tight shutoff suitable for vacuum upto 10, 6 torr. Vibration resistance upto 9g. Is compatible with every position. Appropriate for advanced speed cycling upto 1000 cycles/ designed for over 10 million cycles of use; features a manual override option offered as an optional feature certifcation ul, Atex, Ce, Isi, Ccoe, Dgms, Gost coil 24V direct current and 110V alternating current 220v ac coil intrinsicaly safe, Type weather-resistant, Explosion-safe proof details on model number and pressure specifications valve condition 20101 0, 150 bar normally closed 20126 Standard pressure is 0. 63 bar closed 20123 0, 1. 5 bar normally closed 20124 0, 0. 3 bar normally closed 20126v1 0, 225 bar normally closed