上海維特銳實業(yè)發(fā)展有限公司
主營產(chǎn)品: ATOS阿托斯閥,賀德克傳感器,ACE緩沖器 |
聯(lián)系電話
上海維特銳實業(yè)發(fā)展有限公司
主營產(chǎn)品: ATOS阿托斯閥,賀德克傳感器,ACE緩沖器 |
聯(lián)系電話
參考價 | 面議 |
更新時間:2024-07-23 10:28:11瀏覽次數(shù):697
聯(lián)系我們時請說明是化工儀器網(wǎng)上看到的信息,謝謝!
力士樂特點;
1.控制閥有各種不同類型,它們的適用場合不同,因此,應(yīng)根據(jù)工藝生產(chǎn)過程的要求合理選擇控制閥類型。
2.氣動類控制閥分氣開和氣關(guān)兩類。氣開控制閥在故障狀態(tài)時關(guān)閉,氣關(guān)控制閥在故障狀態(tài)時打開??刹捎靡恍┹o助設(shè)備組成保位閥或使控制閥自鎖,即故障時控制閥保持故障前的閥門開度
3.氣開和氣關(guān)的方式可通過正、反作用的執(zhí)行機構(gòu)類型和正體、反體閥的組合實現(xiàn),在使用閥門定位器時,也可通過閥門定位器實現(xiàn)
4.各種控制閥結(jié)構(gòu)不同,各有特色。從控制閥應(yīng)用看,發(fā)展方向如下:
a.小型執(zhí)行機構(gòu):可降低成本,提高流通能力 .
b.套筒導(dǎo)向:采用套筒導(dǎo)向,有利于對中,有利于降低摩擦,有利于降噪,有利于流量特性的互換
c.平衡式閥芯:為降低執(zhí)行機構(gòu)推力或推力矩,采用平衡式閥芯是重要的,它對系統(tǒng)的動態(tài)性能也有改善
d.一體化閥芯和閥座:為克服雙座閥密封性差的缺點,采用相同材質(zhì)的一體化閥芯和閥座組成閥內(nèi)件,將泄漏量和不平衡力同時減到zui小 .
e.簡單流路:流路簡單,流阻減小,不僅可使閥兩端壓損下降,而且可降低成本。
f.密封和摩擦:密封性能和摩擦性能是矛盾的兩方面,控制閥設(shè)計中不僅要解決密封問題,對摩擦和壽命等性能指標也必須重視 因此,近年來,填料函和填料結(jié)構(gòu)的研究得到重視,旋轉(zhuǎn)型控制閥得到較廣泛應(yīng)用
g.降低噪聲:采用多種方式降低控制閥噪聲,例如,采用降噪套筒和閥芯,采用多級閥芯,采用降噪限流板,采用擴展器等
h.采用與管道同直徑的控制閥和限制流通能力的閥內(nèi)件:利于降低閥入口壓力和出口流體流速,不需安裝異徑管等附加管件,有利于降低成本,通過更換流通能力大的閥內(nèi)件,可擴展流通能力,通過選用限制流通能力閥內(nèi)件可糾正計算口徑過大的錯誤
i.在數(shù)字化信息化時代,將較多采用智能閥門定位器或通過數(shù)字控制器等實現(xiàn)非線性規(guī)律,補償被控對象非線性,將較少選用控制閥流量特性來補償被控對象非線性
5.閥內(nèi)件的材料隨溫度變化,因此,應(yīng)考慮不同溫度下熱膨脹造成的影響,也要考慮在高溫下耐壓等級的變化等,應(yīng)考慮材料的耐腐蝕性、抗疲勞性等性能。
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DBDH 1
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DBDH 10 P1X/200V
DBDH 10 K1X/630V
DBDS 10 G1X/25
DBDS 6 G1X/400V
DBDS 6 G1X/400V
DBDS 6 K1X/400V
DBDS 6 K1X/50V
DBDS 6 K1X/50V
DBDS20K-10/100
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DBDH6G1/315
德國力士樂疊加式2通流量控制閥
規(guī)格6
安裝面安DIN 24340 A型和ISO 4401
在A、B、A和B或T(P)口有流量控制
流量控制閥Z2FRM詳細信息:
RE 28163 (規(guī)格 6)
RE 28389 (規(guī)格 10)
型號 2FRM, 2FRH 和 2FRW
2通流量控制閥
規(guī)格6至16
底板安裝
規(guī)格6:安裝面按DIN 24340 A型和 ISO 4401
規(guī)格10和16:安裝面按DIN 24340 G型和ISO 6263
手動觸發(fā)(2FRM型)
液壓觸發(fā)(2FRH型)
電液觸發(fā)(2FRW型)
用疊加板式整流器實現(xiàn)雙向流量控制(見如下,Z4S型)
齒條活塞的行程限位器,兩端限位可調(diào)(2FRH和2FRW型)
真實值電位計,用于見許監(jiān)控節(jié)流孔位置,可選(2FRH和2FRW型)
壓力補償器外部關(guān)閉,可選(規(guī)格6)
單向閥,可選(規(guī)格6)
壓力補償器的行程限位器,用于減小啟動沖擊(規(guī)格10和16)
RE 28155
2FRM.K
2通流量控制閥
規(guī)格6和10
作為插裝閥("K")
有集成單向閥
低啟動沖擊