Specification Full port or Regular port. Nominal Pressure: PN 16 to PN 64 / ANSI Class 150 to Class 300 Port Size:DN200~DN1400 Structure:Throhgh way trunnion ball. Connection:Welding Service: district heating hot water, natural gas, oil, steam, petrochemical .etc. Operate actuator: lever, gear (Vertical / Horizontal); pneumatic / electrical