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高粘度噴射閥的旋轉方向要與進、出噴射閥相符。點膠機噴射閥若是第一次運行，或長期閑置后再使用，最好在空載或小負荷情況下先跑合一小時左右。如果在跑合階段預先覺察出異常溫升、泄漏、振動和噪聲時，應停機檢查。

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GAOZHANDUPENSHEFADEXIJIAOGUANDAONEIJINGYINGZUGOUDA，BINGBIMIANXIAZHAITONGDAOHUOJIJUGUAIWAN、JIANSHAOWANTOU，QUCHUBUBIYAODEFAMEN、FUJIAN，JINKENENGDIJIANGDIFADEANZHUANGGAODU，SUODUANXIYOUGUANDAODECHANGDU，YIJIANSHAOYALISUNSHI。

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管接頭等元件的密封要良好，以防止空氣侵入，從而控制氣穴與氣蝕的發生。點膠機廠家高粘度噴射閥的出口管路上還應當設置安全閥等保護裝置，點膠機這樣一旦泵的出口通道發生堵塞，就可以打開安全閥卸壓。安全閥可以與泵體或泵蓋鑄成一體，也可以單獨裝配。對于需要正反轉的高粘度噴射閥，其進出口管路上均需設置安全閥。

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