The body and bonnet are best joined by holding the bonnet assembly open end up and dropping all required items into place one at a time.
装配时始终打开阀帽直到一次装入所有要求安装的配件可使阀体和阀帽良好配合。
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 backup seal is secondary to the main stem seal assembly (20) in the bonnet (12).
备用密封件是阀帽(12)内主阀杆密封组件(20)的二级密封。
The backup seal is secondary to the main stem seal assembly (20) in the bonnet (12).
备用密封件是阀帽(12)内主阀杆密封组件(20)的二级密封。
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