| 球阀的球体弹性的 |
| 添加时间：2020/8/7 16:23:33 浏览次数： |
| 球阀的球体弹性的。球体和阀座密封圈都采用金属材料制造，密封比压很大，依靠介质本身的压力已达不到密封的要求，必须施加外力。这种阀门适用于高温高压介质。 The ball of ball valve is elastic. Ball and valve seat seal ring are made of metal materials, the sealing specific pressure is very large, the pressure of medium itself can not meet the requirements of sealing, so external force must be applied. This valve is suitable for high temperature and high pressure medium. 弹性球体是在球体内壁的下端开一条弹性槽，而获得弹性。当关闭通道时，用阀杆的楔形头使球体涨开与阀座压紧达到密封。在转动球体之前先松开楔形头，球体随之恢复原原形，使球体与阀座之间出现很小的间隙，可以减少密封面的摩擦和操作扭矩。 Elastic sphere is to obtain elasticity by opening an elastic groove at the lower end of the inner wall of the sphere. When the channel is closed, the wedge head of the valve stem is used to make the ball open and press the valve seat to achieve sealing. Before rotating the ball, loosen the wedge head first, and then the ball will return to its original shape, so that there is a small gap between the ball and the valve seat, which can reduce the friction and operating torque of the sealing surface. |
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