Model:2W-15S、20S、25S Takeover caliber:1/2"、3/4"、1" Flow diameter:16mm、20mm、 Cv value:4.8、7.6、12 Service flow:Air,Water,Oil,Gas Action method:Direct-acting Type:Nomal close Viscosity:Fluid viscosity:less than 20CST Working pressure:Water,Air:0-7kgf/cm2 Oil;`0-5kgf/cm2 Service voltage:AC220V Value body material:Brass Sealing material:Standard:fluid temperature is blow NBR 80℃, Available: VITON under 120℃