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即使在大流速下，也能够确保阀瓣和阀座的精确对准。
Assures perfect alignment of disc and seat even at large flow velocities.
这款过滤器安装有一个机械阀座，用于精确对准篮筐。
Style D Strainers has a machined seat for perfect basket alignment.
阀杆：阀杆与轭架有很长的啮合段，有助于阀座密封的精确对准。
Stem: Stem has long engagement with yoke bushing for accurate seating.
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