Electric Flow Control Valve 1.adopts pressure balanced structure 2.equipped with inlet balance sealing ring Electric Control ValveTrim,temperature range & ... ringHS double seated total metal sealingLeakageClassClassClassWorking temp.°C-196~+566-5~+230-196~+566Illustration Body DN40, 50, 65, 80, ... .4MPaConnectionFlange typeFF, RF, RJ, LG, MFMFlange standardANSI B16.5-1981, JB/T79.1-94(PN1.6MPa), JB/T79. ...