Raised-face seat. A groove around the seat collects particles pushed aside by the knife and prevents clogging. When the valve opens, media pressure cleans the groove.

凸面阀座。阀座周围的槽将颗粒收集起来，并排挤到闸刀旁边，以避免出现堵塞。当阀门开启时，流体介质压力就会清洗槽内的颗粒。

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A screwdriver is used to remove the spiral seat retainer ring from its groove.

采用一把螺丝刀从凹槽中拆卸螺旋阀座定位器环。

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And the structure of the soft sealing ring of this product is pressed by a metal ring set in the seat within a groove on the ladder which can't drop and be convenient to change.

而且此产品的软密封结构的密封圈是由金属圈压套在阀座上的阶梯凹槽内，具有密封不脱落，而且可以很方便的更换等优点。

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