Pneumatic valve device and have its sodium ion exchanger

The utility model provides a pneumatic valve device and have its sodium ion exchanger, pneumatic valve device include valve rod part and seal receptacle, and the valve rod fitting up is on the seal receptacle, and wherein, the valve rod part includes the sealing, is provided with the seal groove that is used for holding the sealing on the seal receptacle, wherein, the sealing has the binding facethat is used for with the laminating of the inner wall facial features of seal groove, and the binding face matches for predetermined spheroidal partial surface, the internal face and the binding faceof seal groove. The utility model provides a pneumatic valve among the prior art has been solved easily because of corroding the problem of leaking to the pneumatic valve device. 本实用新型提供了种气动阀装置及具有其的钠离子交换器，气动阀装置包括阀杆部件和密封座，阀杆部件安装在密封座上，其中，阀杆部件包括密封部，密封座上设置有用于容纳密封部的密封槽；其中，密封部具有用于与密封槽的内壁面相贴合的贴合面，贴合面为预定球体的部分外表面，密封槽的内壁面与贴合面相配合。本实用新型中的气动阀装置解决了现有技术中的气动阀容易因腐蚀而漏水的问题。