D41FBE02FC2NF00

黎翔機(jī)電派克Parker銷售部詢價聯(lián)系人：何小姐

美國派克Parke詢價電話：

美國派克Parke詢價 QQ:736567721

美國派克Parke詢價郵箱：736567721@qq.com   
派克比例閥
名  稱：派克比例閥
品  牌：parker派克
型  號：D41FBE01FC1NF00
介  紹：
美國派克PARKER比例閥適用性 ◇管路中的流體必須和選用的比例閥系列型號中標(biāo)定的介質(zhì)一致。
流體溫度必須小于選用比例閥的標(biāo)定溫度。
美國派克PARKER比例閥允許液體粘度一般在20CST以下，大于20CST應(yīng)注明。
工作壓差，管路*高壓差小于0.04MPa時應(yīng)選用如ZS，2W，ZQDF，ZCM系列等直動式和分布直動式；*低壓差大于0.04MPa時可選用先導(dǎo)式（壓差式）比例閥；*高工作壓差應(yīng)小于比例閥的*大標(biāo)定壓力；一般比例閥都是單向工作，因此要注意是否有反壓差，如有安裝止回閥。
流體清潔度不高時應(yīng)在比例閥前安裝過濾器，一般比例閥對介質(zhì)要求清潔度高。
注意流量孔徑和接管口徑；比例閥一般只有開關(guān)兩位控制；條件允許請安裝旁路管，便于維修；有水錘現(xiàn)象時要定制比例閥的開閉時間調(diào)節(jié)。
注意環(huán)境溫度對比例閥的影響。
電源電流和消耗功率應(yīng)根據(jù)輸出容量選取，電源電壓一般允許±10%左右，必須注意交流啟動時VA值較高。
可靠性 -比例閥分為常閉和常開二種；一般選用常閉型，通電打開，斷電關(guān)閉；但在開啟時間很長，關(guān)閉時間很短時要選用常開型了。
壽命試驗(yàn)，工廠一般屬于型式試驗(yàn)項(xiàng)目，確切地說我國還沒有比例閥的專業(yè)標(biāo)準(zhǔn)，因此選用比例閥廠家時要慎重。
動作時間很短，頻率較高時一般選取直動式，大口徑選用快速系列。
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