Easy dismantling is made possible by dropping the bonnet assembly into the body cavity and driving out the four-segmental thrust rings by means of a push pin.
将阀帽总装拆离阀腔，采用推针取出四个部分的推力环，拆卸变得简便易行。
The axial lower section of the hemisphere case is equipped with the absorption cavity which connects with the segmental concave cavity.
半球壳体轴向下部设有连通圆缺凹腔的吸收腔。
The axial lower section of the hemisphere case is equipped with the absorption cavity which connects with the segmental concave cavity.
半球壳体轴向下部设有连通圆缺凹腔的吸收腔。
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