... 5years golden supplier,PN16-PN40,Due to the body construction,full welded ball valve for hot water is light and easy to install ... Box,Electric ActuatorPackageWooden caseCertificateCE,GOST,ISO90001:2008Welded ball valve as a new type of ball valve is widely used in urban central heating ... Combined with the use of welding noodle, reducing leakage outside. full welded ball valve for hot water usage