1.The valve bodies are machined internally using CNC machine tools to ensure the sealing performance of the adjustment seat and the concentricity of product through-holes.
2.Each ball undergoes rough turning and fine turning followed by polishing to ensure its roundness, providing a smooth feel and minimizing leakage.
3.The holes for valve body and stem assembly are machined using specialized boring machines to ensure reliable sealing. 4.For sizes 2-1/2" and above, the threads are machined to ensure a tighter fit and higher strength between the nut and valve body. 5.Each valve undergoes 100% pressure testing before leaving the factory.



