焊接球阀门

1.O-rising is seated in disc and easy to be replaced. 2.Choice of O-ring elastormers for different operating temperatures and environments. 3.Standard cast iron nickel plated body. 4.Aluminium bronze or nickel plated ductile iron disc options. 5.Large diameter shaft on all size provides superior strength. 6.Maximum disc diameter for each vavle size,that has a greater free-flow area than the others. 7.Open and close locking handle with more dependable locking capabilities.