ZDR6DP2-4X/75YM力士樂減壓閥
直動式減壓閥
ZDR 6 D
規(guī)格 6
組件系列 4X
較大工作壓力 350 bar
較大流量 50 l/min
ZDR 型閥是一種采用疊加閥板設(shè)計的直動式減壓閥,可限制次級油路的壓力。用于降低系統(tǒng)壓力。
減壓閥主要由殼體 (1)、控制閥芯 (2)、壓縮彈簧 (3)、調(diào)整類型 (4) 和可選單向閥組成。
通過調(diào)整類型 (4) 設(shè)置次級壓力。
型號“A”
在初始位置時閥門處于打開狀態(tài)。液壓油可以不受限制地從通道 A? 流向通道 A?。同時,通道 A? 中的壓力通過控制油路 (5) 作用于與壓縮彈簧 (3) 相對的柱塞表面。如果通道 A? 中的壓力超過在壓縮彈簧 (3) 處設(shè)定的值,則控制閥芯 (2) 將被推離壓縮彈簧 (3) 并移動到控制位置,從而使通道 A? 中的調(diào)定壓力保持恒定。
通過控制油路 (5) 從通道 A? 內(nèi)部提供控制信號和先導(dǎo)油。
當(dāng)通道 A? 中的壓力因作用于執(zhí)行機構(gòu)的外力而繼續(xù)增加時,壓力將迫使控制閥芯 (2) 更加遠(yuǎn)離壓縮彈簧 (3)。
這樣,通道 A? 將經(jīng)由控制閥芯 (2) 上的控制邊 (9) 和殼體 (1) 與油箱相連接。大量液壓油將流回油箱,因此壓力將不再增加。
彈簧腔 (7) 的泄漏油總是經(jīng)由孔 (6) 流入通道 T (Y) 實現(xiàn)外部排出。
壓力計連接 (8) 用于控制閥的次級壓力。
單向閥可用于實現(xiàn)從通道 A? 至 A? 的自由回流,但僅限于型號“A”。
型號“P”和“B”
對于型號“P”,減壓可在通道 P? 內(nèi)實現(xiàn)。通過從通道 P? 內(nèi)部提供控制信號和先導(dǎo)油。
對于型號“B”,通道 P? 中的壓力降低,但先導(dǎo)油可從通道 B 中獲得。
注意事項:
如果方向閥處于閥芯位置 P 至 A,則通道 B 中的壓力不得超過設(shè)置的次級壓力。否則,通道 A 中會出現(xiàn)減壓現(xiàn)象。
減壓閥是通過調(diào)節(jié),將進口壓力減至某一需要的出口壓力,并依靠介質(zhì)本身的能量,使出口壓力自動保持穩(wěn)定的閥門。從流體力學(xué)的觀點看,減壓閥是一個局部阻力可以變化的節(jié)流元件,即通過改變節(jié)流面積,使流速及流體的動能改變,造成不同的壓力損失,從而達到減壓的目的。然后依靠控制與調(diào)節(jié)系統(tǒng)的調(diào)節(jié),使閥后壓力的波動與彈簧力相平衡,使閥后壓力在一定的誤差范圍內(nèi)保持恒定。
性能
(1)調(diào)壓范圍:它是指減壓閥輸出壓力P2的可調(diào)范圍,在此范圍內(nèi)要求達到規(guī)定的精度。調(diào)壓范圍主要與調(diào)壓彈簧的剛度有關(guān)。
(2)壓力特性:它是指流量g為定值時,因輸入壓力波動而引起輸出壓力波動的特性。輸出壓力波動越小,減壓閥的特性越好。輸出壓力必須低于輸入壓力—定值才基本上不隨輸入壓力變化而變化。
(3)流量特性:它是指輸入壓力—定時,輸出壓力隨輸出流量g的變化而變化的持性。當(dāng)流量g發(fā)生變化時,輸出壓力的變化越小越好。一般輸出壓力越低,它隨輸出流量的變化波動就越小。
它可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質(zhì)主要是水。減壓閥廣泛用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場合,以保證給水系統(tǒng)中各用水點獲得適當(dāng)?shù)姆⻊?wù)水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統(tǒng)的水壓大小成正比,因此減壓閥具有改善系統(tǒng)運行工況和潛在節(jié)水作用,據(jù)統(tǒng)計其節(jié)水效果約為30%。
1、關(guān)閉減壓閥前的閘閥,開啟減壓閥后的閘閥,制造下游低壓環(huán)境;
減壓閥
2、將調(diào)節(jié)螺釘按逆時針旋轉(zhuǎn)至較上位置(相對較低出口壓力),然后關(guān)閉減壓閥后閘閥;
3、慢慢開啟減壓閥前的閘閥至全開;
4、順時針慢慢旋轉(zhuǎn)調(diào)節(jié)螺釘,將出口壓力調(diào)至所需要的壓力(以閥后表壓為準(zhǔn));調(diào)整好后,將鎖緊
螺母鎖緊,打開減壓閥后閘閥;
5、如在調(diào)整時出口壓力高于設(shè)定壓力,須從較好步開始重新調(diào)整,即只能從低壓向高壓調(diào)。
原理
作用原理:減壓閥的是靠閥內(nèi)流道對水流的局部阻力降低水壓,水壓降的范圍由連接閥瓣的薄膜或活塞兩側(cè)的進出口水壓差自動調(diào)節(jié)。定比減壓原理是利用閥體中浮動活塞的水壓比控制,進出口端減壓比與進出口側(cè)活塞面積比成反比。這種減壓閥工作平穩(wěn)無振動;閥體內(nèi)無彈簧,故無彈簧銹蝕、金屬疲勞失效之慮;密封性能良好不滲漏,因而既減動壓(水流動時)又減靜壓(流量為0時);特別是在減壓的同時不影響水流量。
工作原理:減壓閥是采用控制閥體內(nèi)的啟閉件的開度來調(diào)節(jié)介質(zhì)的流量,將介質(zhì)的壓力降低,同時借助閥后壓力的作用調(diào)節(jié)啟閉件的開度,使閥后壓力保持在一定范圍內(nèi),并在閥體內(nèi)或閥后噴入冷卻水,將介質(zhì)的溫度降低,這種閥門稱為減壓減溫閥。減壓閥快易優(yōu)自動化選型有收錄。該閥的特點,是在進口壓力不斷變化的情況下,保持出口壓力和溫度值在一定的范圍內(nèi)。
優(yōu)點
水流通過減壓閥雖有很大的水頭損失,但由于減少了水的浪費并使系統(tǒng)流量分布合理、改善了系統(tǒng)布局與工況,因此總體上講仍是節(jié)能的。介質(zhì)為蒸汽的場合,宜選用先導(dǎo)活塞式減壓閥或先導(dǎo)波紋管式減壓閥。為了操作、調(diào)整和維修的方便,減壓閥一般應(yīng)安裝在水平管道上。
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R978905818 ZDR6DA7-4X/210Y/12
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R978863488 ZDR6DB1-4X/210YM/12
R978897341 ZDR6DB2-4X/10YMSO43A-1416
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R978865862 ZDR6DB2-4X/75YMV/12
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R978855826 ZDR6DP1-4X/25YMV/12
R978898755 ZDR6DP2-4X/10YMSO43A-1416
R987119096 ZDR6DP2-4X/210YMJP001
R978007533 ZDR6DP2-4X/210YM-200
R978857961 ZDR6DP2-4X/75YM/5
R971010572 ZDR6DP2-4X/75YMV(FORASIA)
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R978899957 ZDR6DP7-4X/150YMV/12
R978860797 ZDR6DP7-4X/75YM/12
R978865794 ZDR6DP7-4X/75YMV/12
R978008323 ZDR6DP7-4X210YMV/12
力士樂REXROTH直動式減壓閥DR 10 DP
R900750954 DR10DP1-4X/150P100YM
R900507303 DR10DP1-4X/150Y
R900500256 DR10DP1-4X/150YM
R900506974 DR10DP1-4X/150YMV
R900503336 DR10DP1-4X/210Y
R900506095 DR10DP1-4X/210YM
R900511233 DR10DP1-4X/210YMV
R900522877 DR10DP1-4X/210YV
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R900750955 DR10DP1-4X/75P50YM
R900500257 DR10DP1-4X/75Y
R900501038 DR10DP1-4X/75YM
R900594124 DR10DP1-4X/75YMV
R900514173 DR10DP1-4X/75YV
R901162034 DR10DP2-4X/150-100Y
R901271517 DR10DP2-4X/150-105YM
R900500051 DR10DP2-4X/150Y
R900500226 DR10DP2-4X/150YM
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R901036834 DR10DP2-4X/150YMJ
R900516293 DR10DP2-4X/150YMV
R900547058 DR10DP2-4X/150YV
R900594125 DR10DP2-4X/210Y
R900501565 DR10DP2-4X/210YJ
R900501385 DR10DP2-4X/210YM
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R900510212 DR10DP2-4X/210YMJ
R900516873 DR10DP2-4X/210YMV
R900525725 DR10DP2-4X/210YV
R900505901 DR10DP2-4X/25Y
R900500563 DR10DP2-4X/25YM
R978899929 DR10DP2-4X/25YM/12
R900521015 DR10DP2-4X/25YMJ
R900509344 DR10DP2-4X/25YMV
R900538133 DR10DP2-4X/25YV
R900500471 DR10DP2-4X/75Y
R900952612 DR10DP2-4X/75YJ
R900500547 DR10DP2-4X/75YM
R978910808 DR10DP2-4X/75YM/12
R900931890 DR10DP2-4X/75YMJ
R900504798 DR10DP2-4X/75YMV
R900501597 DR10DP2-4X/75YV
R900908610 DR10DP2-4X=150YMV=PL
R901322586 DR10DP2-4X=25YMJ
R900907032 DR10DP2-4X=75YM=PL
R900502529 DR10DP3-4X/150Y
R900500041 DR10DP3-4X/150YM
R900539379 DR10DP3-4X/150YMV
R900522399 DR10DP3-4X/150YV
R900500903 DR10DP3-4X/210Y
R900902914 DR10DP3-4X/210Y/12
R900517370 DR10DP3-4X/210YM
R900772067 DR10DP3-4X/210YV
R901200427 DR10DP3-4X/210YV/12
R900500497 DR10DP3-4X/25Y
R900594126 DR10DP3-4X/25YM
R900946790 DR10DP3-4X/25YMV
R900518920 DR10DP3-4X/25YV
R900502655 DR10DP3-4X/75Y
R900500258 DR10DP3-4X/75YM
R901201755 DR10DP3-4X/75YM/12
R900753678 DR10DP3-4X/75YMV
R900943962 DR10DP7-4X/150Y
R900594127 DR10DP7-4X/150YM
R900952959 DR10DP7-4X/150YMV
R901097550 DR10DP7-4X/210Y
R900937514 DR10DP7-4X/210YM
R901387766 DR10DP7-4X/210YMV
R900566332 DR10DP7-4X/210YV
R900539316 DR10DP7-4X/25Y
R901035741 DR10DP7-4X/25YM
R901013888 DR10DP7-4X/25YMV
R900509400 DR10DP7-4X/75Y
R900566863 DR10DP7-4X/75YM
R901013889 DR10DP7-4X/75YMV
R900564838 DR10DP7-4X/75YV
R978011251 DR10DP1-4X/210YM/12
R978898204 DR10DP1-4X/75YM/12
R978901749 DR10DP2-4X/150Y/12
R978908312 DR10DP2-4X/150YMV/12
R978908326 DR10DP2-4X/150YV/12
R978901991 DR10DP2-4X/210Y/12
R978903599 DR10DP2-4X/210YV/12
R978897366 DR10DP2-4X/25Y/12
R978919346 DR10DP2-4X/75Y/12
R978008223 DR10DP2-4X/75YMV/12
R978910973 DR10DP2-4X/75YMV/5
R978899863 DR10DP2-4X/75YV/12
R978899844 DR10DP2-4X/75YV/5
R978901939 DR10DP3-4X/25YM/12
R978914609 DR10DP7-4X/150YM/12
R978914703 DR10DP7-4X/25YM/12
R978914704 DR10DP7-4X/75YM/12
力士樂REXROTH直動式減壓閥ZDR 10 D
R900406178 ZDR10DA1-5X/150Y
R900905461 ZDR10DA1-5X/150Y/12
R900460490 ZDR10DA1-5X/150YM
R900738256 ZDR10DA1-5X/150YM/12
R900539789 ZDR10DA1-5X/150YMV
R900508340 ZDR10DA1-5X/150YV
R900956189 ZDR10DA1-5X/150YV/12
R900433851 ZDR10DA1-5X/210Y
R900583374 ZDR10DA1-5X/210Y/12
R900442768 ZDR10DA1-5X/210Y/5
R900533192 ZDR10DA1-5X/210YM
R900967495 ZDR10DA1-5X/210YMV
R900967496 ZDR10DA1-5X/210YV
R900422384 ZDR10DA1-5X/25Y
R900442769 ZDR10DA1-5X/25Y/5
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R900967497 ZDR10DA1-5X/25YMV
R900918165 ZDR10DA1-5X/25YV
R900415411 ZDR10DA1-5X/75Y
R900587665 ZDR10DA1-5X/75Y/12
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R900442756 ZDR10DA1-5X/75YM
R900967934 ZDR10DA1-5X/75YMV
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R900941880 ZDR10DA1-5X/75YV/12
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R901018332 ZDR10DA2-5X/150-130Y
R901372559 ZDR10DA2-5X/150-80Y
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R900940457 ZDR10DA2-5X/150YV/12
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R900534722 ZDR10DA2-5X/210YM/12
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R900507984 ZDR10DA2-5X/210YMV
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R900553390 ZDR10DA2-5X/210YV/12
R900931306 ZDR10DA2-5X/25-20Y
R900407334 ZDR10DA2-5X/25Y
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R900967498 ZDR10DA2-5X/25YMV
R900424620 ZDR10DA2-5X/25YV
R900503067 ZDR10DA2-5X/315YMSO4
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R900438008 ZDR10DA2-5X/75Y
R900410886 ZDR10DA2-5X/75Y
R900587492 ZDR10DA2-5X/75Y/12
R900438756 ZDR10DA2-5X/75Y/5
R900946731 ZDR10DA2-5X/75Y/50
R900558992 ZDR10DA2-5X/75Y=LB
R900494714 ZDR10DA2-5X/75YM
R900429112 ZDR10DA2-5X/75YMW102
R900961380 ZDR10DA2-5X/75YM/12
R900441086 ZDR10DA2-5X/75YM/5
R901224140 ZDR10DA2-5X/75YMJV
R900517386 ZDR10DA2-5X/75YMV
R900447838 ZDR10DA2-5X/75YMV/5
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R900464178 ZDR10DA3-5X/150YM
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R901029532 ZDR10DA3-5X/25YMV
R900507928 ZDR10DA3-5X/25YV
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R900478216 ZDR10DA3-5X/75YV
R900518378 ZDR10DA7-5X/150Y
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R900529852 ZDR10DA7-5X/75Y
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R901411681 ZDR10DA7-5X/75YMV
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R978879391 ZDR10DB1-5X/150YM/12
R900569428 ZDR10DB1-5X/150YMV
R900587050 ZDR10DB1-5X/210YM
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R900967499 ZDR10DB1-5X/210YMV
R900472873 ZDR10DB1-5X/25YM
R900975838 ZDR10DB1-5X/25YM/12
R900967501 ZDR10DB1-5X/25YMV
R900433058 ZDR10DB1-5X/75YM
R900967931 ZDR10DB1-5X/75YMV
R900408340 ZDR10DB2-5X/150YM
R900425586 ZDR10DB2-5X/150YM
R900562022 ZDR10DB2-5X/150YM/12
R900570282 ZDR10DB2-5X/150YMV
R900940458 ZDR10DB2-5X/150YMV/12
R901054580 ZDR10DB2-5X/210-150YM
R900443484 ZDR10DB2-5X/210YM
R900509346 ZDR10DB2-5X/210YM/12
R900587565 ZDR10DB2-5X/210YMV
R900902936 ZDR10DB2-5X/210YMV/12
R900426202 ZDR10DB2-5X/25YM
R900564929 ZDR10DB2-5X/25YM/12
R900967503 ZDR10DB2-5X/25YMV
R900411305 ZDR10DB2-5X/75Y
R900431509 ZDR10DB2-5X/75YM
R900583356 ZDR10DB2-5X/75YM/12
R900441104 ZDR10DB2-5X/75YM/5
R900946732 ZDR10DB2-5X/75YM/50
R900441887 ZDR10DB2-5X/75YMV
R900546351 ZDR10DB2-5X/75YMV/12
R900432183 ZDR10DB2-5X/75YMV/5
R900471974 ZDR10DB3-5X/150YM
R900935264 ZDR10DB3-5X/150YMV
R900481402 ZDR10DB3-5X/150YMV
R901352456 ZDR10DB3-5X/150YMV/12
R900519131 ZDR10DB3-5X/210YM
R900903756 ZDR10DB3-5X/210YMV
R900431392 ZDR10DB3-5X/25YM
R901029542 ZDR10DB3-5X/25YMV
R900472027 ZDR10DB3-5X/75YM
R900438729 ZDR10DB3-5X/75YMV
R900479940 ZDR10DB3-5X/75YMV/12
R900925917 ZDR10DB7-5X/150YM
R900921263 ZDR10DB7-5X/210YM
R900952406 ZDR10DB7-5X/75YM
R901173561 ZDR10DP1-5X/150-100YM
R901224405 ZDR10DP1-5X/150-130YM
R901177250 ZDR10DP1-5X/150-80YM
R900411247 ZDR10DP1-5X/150YM
R900458632 ZDR10DP1-5X/150YMSO43
R900513527 ZDR10DP1-5X/150YM/12
R900481947 ZDR10DP1-5X/150YM/5
R900508341 ZDR10DP1-5X/150YMV
R901031008 ZDR10DP1-5X/150YMV/12
R901224413 ZDR10DP1-5X/210-160YM
R900411246 ZDR10DP1-5X/210YM
R901023629 ZDR10DP1-5X/210YM/12
R900430195 ZDR10DP1-5X/210YM/5
R900550022 ZDR10DP1-5X/210YMV
R900967504 ZDR10DP1-5X/25YM
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R900433354 ZDR10DP1-5X/25YM/5
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R900450298 ZDR10DP1-5X/75YMV
R900437311 ZDR10DP1-5X/75YMV/5
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R901376332 ZDR10DP2-5X/150-100YMV
R901153180 ZDR10DP2-5X/150-120YM
R901086389 ZDR10DP2-5X/150-75YM
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R901397083 ZDR10DP2-5X/150-85YM
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R900580213 ZDR10DP2-5X/210YMSO15
R987063431 ZDR10DP2-5X/210YMTS10AQ
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R900742260 ZDR10DP2-5X/25P20YM
R900410899 ZDR10DP2-5X/25YM
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R901325605 ZDR10DP2-5X/75-50YMV
R901374974 ZDR10DP2-5X/75-75YM
R901374987 ZDR10DP2-5X/75-75YMV
R901402818 ZDR10DP2-5X/75P69YMVSO30
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R900432835 ZDR10DP2-5X/75YMW27
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R983047193 ZDR10DP2-5X/75YMVIN010
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R900425631 ZDR10DP2-5X/75YMV/5
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