A41H型適用于工作溫度≤300℃的石油氣、空氣、水等介質(zhì)的設(shè)備或管路上。A41Y-P/R型適用于工作溫度≤200℃有腐蝕性介質(zhì)的設(shè)備或管路上，作為超壓保護(hù)裝置。當(dāng)設(shè)備和管路內(nèi)壓力超過允許值時(shí)，閥門自動(dòng)開啟，繼而全量排放；當(dāng)壓力降低到規(guī)定值時(shí)，閥門自動(dòng)關(guān)閉，保證設(shè)備和管路安全運(yùn)行。

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