Adjustments for envelope squeeze on seats and valve testing are done by machine during factory assembly.
在工厂组装期间，采用机械设备对阀座和阀门测试封装挤压进行调整。
Medium pressure increases toward the valve seat surface and oblique cone sealing surface squeeze is tightening, sealing the better.
正向介质压力增大时阀板斜圆锥表面与阀座密封面挤压越紧，密封效果越好。
Adjustments for envelope squeeze on seats and valve testing are done by machine during factory assembly.
在工厂组装期间，阀座的封装挤压和阀门测试的调整都是通过机械设备进行操作。
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