描述
ACS143-1K6-3
控制閥拆卸維修時,可用旁路閥對生產過程進行操作。當被控流量過大,用控制閥無法正常調節(jié)時,作為應急措施,也可用旁路閥作為控制閥的并行連接方案,對過程進行控制。為降低成本,大口徑控制閥安裝手輪執(zhí)行機構,可代替旁路閥進行操作。旁路閥的安裝應便于操作,它與控制閥上、下游切斷閥一起組成控制閥組,因此,安裝時應與它們配套,并同時完成施工安裝。旁路閥公稱直徑與管道公稱直徑相同,耐壓等級也與工藝耐壓等級一致。通常執(zhí)行機構與控制閥閥體直接連接,但液動執(zhí)行機構、長行程執(zhí)行機構等執(zhí)行機構與控制閥閥體分開時,安裝執(zhí)行機構時應注意,執(zhí)行機構的連桿和機械活動部件應靈活,無松動或卡扭等現象。連桿長度應在全行程范圍內動作穩(wěn)定、靈活可靠。當與工藝管道有熱位移的控制閥閥體連接時,應保證執(zhí)行機構與控制閥閥體之間相對位置保持不變。手輪執(zhí)行機構有側裝和頂裝兩種,安裝時應留有操作空間。手輪操作應靈活,沒有卡死或扭轉現象。應有手輪轉動方向與閥開度關系的標注。限位裝置應調整合適,起到保護作用。液動執(zhí)行機構應低于控制器安裝,如果必須高于控制器時,其高差應不超過1.0m,并且應在管路集氣處安裝排氣閥,靠近控制器處安裝止逆閥或自動切斷閥。
產品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務質量,
優(yōu)勢價格,大量現貨。
主營DCS系統配件
機器人系統配件
大型伺服系統配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進口DCS? PLC系統備件模塊 15天包退換 一年質保 大量現貨? 國內實力庫存商家
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