... .Moment:3.5 N.m 2.Valve Specifications:1/2", 3/4" 3.Auto Open/Close ... Time:6~20s GA-311 Valve Controller for Fire Protection 1. Working Voltage:DC8V~16V2. ... Working Current:20mA~200mA3. Valve Specifications:1/2", 3/4"4. Moment:3.5 N ... Electric Control Lock, Electric Strike, Time Attendance and Biometrics, etc. Valve Controller for Fire Protection