Electric Control Valves Types 3213/5857, 3213/5827-N, 3213/5757-3, 3213/5757-7, 3213/5724-3, 3213/5724-8 and 3214/5827-N, 3214/3374, 3214/5724-3, 3214/5724-8 With fail-safe action: Types 3213/5827-A, 3213/5827-E, 3213/5725-3, 3213/5725-8 and 3214/5725-3, 3214/5725-8, 3214/3374 Pneumatic Control Valves Types 3213/2780 and 3214/2780