Product Details Hollow Stainless Steel Valve Spheres The hollow valve ball is another one of the most competitive products of Zhenhong, also patented products. It includes two kinds hollow balls, one is the sheer hollow ball, the other one is welded hollow ball. We have an independent production line, from raw material (steel plates or seamless tube) cutting, bending, reeling, preforming, combination, welding to finished products machined out, plus the pneumatic pressure test make sure each ball is in perfect condition. The hollow balls are widely assembled in low pressure ball valves no more than PN25. Patented design technologies make us became China largest, top & best hollow valve ball supplier in China, yearly 3,000,000pcs on average exported to North & East Europe, Russia, etc.The valve ball is a universal opening and closing seal in the ball valve. It is characterized by simple assembly, easy …
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