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                首頁 > 產品中心 > 截止閥 > J41H直流式高壓截止閥
                • J41H直流式高壓截止閥屬於強制密封式閥門,所以在閥門關閉時,必須向閥瓣施加壓力,以強制密封面不泄漏。當介質由閥瓣下方進入閥內時,操作力所需要克服的阻『力,是閥桿和填料的磨擦力與由介質的壓力所產生的推力,關閥門的一無所知力比開閥門的力大,所以閥桿的直徑要大,否則會發生老大一發話閥桿頂彎的故障。
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