Sealing parts are combined together as unit, which features a one-piece structure. Upper seal valve combination is composed of burden valve and upper sealing valve, and the lower seal valve combination is composed of flow regulating valve and lower sealing valve.
When used together as combination, it features a relatively smaller height when compared with traditional ones. The major advantage of seal valve combination is that the baffle plate adopts a drawer-type structure, which could be pulled out easily. The design provides much convenience for maintenance and repair.
