| 2. | To use valve body of an eccentric , the spheroid of an eccentric and the valve seat , then the valve lever make the rotary motion , in common path self - centering , closure process pass tighter and tighter , completely achieves the good seal , therefore the hemisphere of an eccentric valve seal performance safe ; when the valve opens or shuts , the spheroid and the valve seat completely withdraw 利用偏心阀体、偏心球体和阀座、阀杆作旋转运动时,在共同轨迹自动定心,关闭过程中越关越紧,完全达到良好密封的目的,所以偏心半球阀密封性能安全可靠;阀门启闭时,球体与阀座完全脱开。 |