原文：
球体不带有固定轴的球阀,称为浮动球阀。浮动球球阀的阀体内有两个阀座密封圈，在它们之间夹紧一个球体，球体上有通孔，通孔的直径等于管道的内径，称全径球阀；通孔的直径略小于管道的内径，称缩径球阀。球体借助于阀杆可以自由地在阀座密封圈中旋转。在开启时，球孔与管道直径对准，已保证管道工作介质阻力最小。当阀杆转动1/4圈时， 球孔垂直于阀门的通道，靠加给两阀座密封圈的预紧力和介质压力将球体紧紧压在出口端的阀座密封圈上，从而保证阀门xx密封。这种球阀属单面强制密封。

“ Floating Ball Valve description ”是由提供的阀门行业新闻，译文仅供参考。另外，中国球阀网还提供相关产品搜索： 、 、 、 、 等。

译文：
Not with a fixed axis ball valve, known as the floating ball. Floating ball valve in the valve body has two seat ring, clamping between them a ball, ball on the through-hole, hole diameter equal to pipe diameter, called the entire diameter ball; hole diameter slightly smaller than the diameter of the pipeline, said reduced diameter ball. Sphere by means of the valve stem is free to rotate in the valve seat ring. In turn, the ball hole aligned with the pipe diameter, pipe work has been assurance medium of least resistance. When the turning of the stem 1 / 4 turn, the ball valve hole perpendicular to the channel, plus a two seat by the preload ring and media pressure to ball firmly pressed on the export side of the seat ring, ensuring valve completely closed. This valve is a single mandatory seal