Sheer Hollow Stainless Steel Valve Spheres

Product Details Sheer Hollow Stainless Steel Valve Spheres     The hollow valve ball of Zhenhong includes two types, one is sheer hollow and another is welded hollow.The sheer hollow valve sphere also have two kinds of processing method, one kind is made from seamless stainless pipes/ tubes, but the size range internal diameter should be below DN150 (6 inch), another kind is made from stainless steel sheets/ plates, through cutting, bending, rolling, welding came to welded pipes/ tubes, both kinds are preforming through the ball press machine then came out the blanks.    316 hollow sphere is a method in which metal round tubes are used as blanks in the upper and lower molds with spherical cavities to be cold-extruded into hollow spheres. The invention has the advantages of simple setup, low energy consumption, high work efficiency, safe operation, good working conditions, and no "three wastes" and environmental pollution. The hollow sphere prepared by…