金属密封球阀具有耐高压、耐高温、剪切力强等特点。采用固定球，减少了高压变形的缺陷。 面醐硬化瞻，并进行砌研磨。阀杆物采用石瞄根，奶了阪可能。
Metal-sealed ball valve has characteristics such as high pressure resistance, high temperature resistance, strong shear force, etc. Using fixed ball can reduce the defect of the high pressure deformation. Sphere surface is conducted to harden coating, matching and grinding. The seal of the valve rod uses the prepressing Graphite stuffing to reduce the possibility of leakage.