Ammonia explosion-proof electric control valve nominal diameter: DN15 ~ 200mm Nominal pressure: PN1.6,2.5,4.0MPa valve shaft material: carbon steel, stainless steel body material: ductile iron, carbon steel, 304/316 / 316L stainless steel ball : 304/316 / 316L stainless steel seat sealing: PTFE, PPL, metal sealing temperature: PTFE≤180 ℃, PPL≤350 ℃, metal seal ≤450 ℃ Applicable medium: ammonia, gas, ammonia, water, oil, viscous fluid, paste, strong oxidizing media features: connection is simple, compact, low resistance, stable operation electric valve actuators technical parameters: Power: AC110,220,380V / DC24,220V output torque: 50N · M ~ 2000N · M optional functions: switching, contact type, opening signal, intelligent modulating operating range: 0 ~ 90 ° ± 5 ° Ambient temperature: -30 ℃ ~ 60 ℃ more information, see: http: // www. ylfmc.com/