ZDR6DP2-4X/150YM減壓閥 德國(guó)博世力士樂(lè)REXROTH減壓閥 壓力控制閥 ****供應(yīng)

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ZDR6DP2-4X/150YM減壓閥

薄膜式減壓閥

該類(lèi)型的減壓閥雙膜片代替了內(nèi)導(dǎo)式減壓閥中的活塞。這個(gè)加大的膜片面積能夠打開(kāi)更大的主閥，并且在相同的管道尺寸下，其容量比內(nèi)導(dǎo)式活塞減壓閥更大。另外，膜片對(duì)壓力變化更為敏感，較好度可達(dá) /-1%。較好性更高是由于下游傳感線的定位（閥的外部），其所在位置氣體或液體動(dòng)蕩更少。該減壓閥非常靈活，可以采用不同類(lèi)型的導(dǎo)閥（例如壓力閥、溫度閥、空氣裝載閥、電磁閥或幾種閥同時(shí)配套適用）。

操作步驟

1、關(guān)閉減壓閥前的閘閥，開(kāi)啟減壓閥后的閘閥，制造下游低壓環(huán)境；

2、將調(diào)節(jié)螺釘按逆時(shí)針旋轉(zhuǎn)至較上位置（相對(duì)較低出口壓力），然后關(guān)閉減壓閥后閘閥；

3、慢慢開(kāi)啟減壓閥前的閘閥至全開(kāi)；

4、順時(shí)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(kāi)減壓閥后閘閥；

5、如在調(diào)整時(shí)出口壓力高于設(shè)定壓力，須從較好步開(kāi)始重新調(diào)整，即只能從低壓向高壓調(diào)。

減壓閥的出口壓力是用來(lái)控制電液換向閥或外控順序閥等的控制油液壓力大小的，當(dāng)電液換向閥或外控順序閥換向或工作后，減壓閥出油口流量變?yōu)榱�，但壓力還需保持原先調(diào)定的壓力。這種情況下，因閥出口流量為零，流經(jīng)減壓口的流量只有先導(dǎo)流量。由于先導(dǎo)流量很少，一般在2L/min之內(nèi)，因此主閥減壓口基本上接近全關(guān)位置（開(kāi)度極�。�，先導(dǎo)流量由三角槽或斜錐面處流出，如果主閥芯配合過(guò)松或磨損過(guò)大，則泄漏量增加。

ZDR6DP2-4X/150YM減壓閥

ZDR 型閥是一種直動(dòng)式減壓閥，采用夾層板設(shè)計(jì)，二次回路壓力限制。它用于降低系統(tǒng)壓力。

減壓閥主要包括外殼 (1)、控制閥芯 (2)、壓縮彈簧 (3)、調(diào)節(jié)型 (4) 和可選的止回閥。

次級(jí)壓力通過(guò)調(diào)節(jié)類(lèi)型 (4) 進(jìn)行設(shè)置。

版本“A”

閥門(mén)在初始位置打開(kāi)。液壓油可以不受限制地從通道 A? 流到通道 A?。通道 A? 中的壓力同時(shí)通過(guò)控制管路 (5) 施加到與壓縮彈簧 (3) 相對(duì)的活塞區(qū)域。如果通道 A? 中的壓力超過(guò)在壓縮彈簧 (3) 上設(shè)置的值，則控制閥芯 (2) 被推向壓縮彈簧 (3) 以控制位置并將通道 A? 中的設(shè)置壓力保持在恒定水平。

控制信號(hào)和先導(dǎo)油通過(guò)來(lái)自通道 A? 的控制管路 (5) 在內(nèi)部提供。

如果通道 A? 中的壓力由于執(zhí)行器上的外力作用而進(jìn)一步增加，它將進(jìn)一步推動(dòng)控制閥芯 (2) 抵抗壓縮彈簧 (3)。

這樣，通道 A? 通過(guò)控制閥芯 (2) 和外殼 (1) 處的控制邊緣 (9) 連接到油箱。如此多的液壓油被排放到油箱中，壓力不會(huì)進(jìn)一步增加。

從彈簧腔 (7) 排出的漏油始終通過(guò)孔 (6) 和通道 T (Y) 從外部實(shí)現(xiàn)。

壓力表連接 (8) 允許控制閥門(mén)處的二次壓力。

單向閥可用于從通道 A? 自由回流到 A? 版本“A”。

版本“P”和“B”

對(duì)于版本“P”，壓力降低在通道 P? 中實(shí)現(xiàn)�？刂菩盘�(hào)和先導(dǎo)油由通道 P? 內(nèi)部提供。

對(duì)于版本“B”，通道 P? 中的壓力降低；但先導(dǎo)油是從通道 B 提取的。

注意：

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(guò)設(shè)定的次級(jí)壓力。否則，通道 A 中存在壓力降低。

ZDR 6 型 DA1-4X/.YM…

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力士樂(lè)REXROTH直動(dòng)式減壓閥DR 10 DP

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R900500051 DR10DP2-4X/150Y

R900500226 DR10DP2-4X/150YM

R900944097 DR10DP2-4X/150YM/12

R901036834 DR10DP2-4X/150YMJ

R900516293 DR10DP2-4X/150YMV

R900547058 DR10DP2-4X/150YV

R900594125 DR10DP2-4X/210Y

R900501565 DR10DP2-4X/210YJ

R900501385 DR10DP2-4X/210YM

R900784572 DR10DP2-4X/210YM/12

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R900521015 DR10DP2-4X/25YMJ

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R900538133 DR10DP2-4X/25YV

R900500471 DR10DP2-4X/75Y

R900952612 DR10DP2-4X/75YJ

R900500547 DR10DP2-4X/75YM

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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

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R900518920 DR10DP3-4X/25YV

R900502655 DR10DP3-4X/75Y

R900500258 DR10DP3-4X/75YM

R901201755 DR10DP3-4X/75YM/12

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R900943962 DR10DP7-4X/150Y

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R901097550 DR10DP7-4X/210Y

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R900539316 DR10DP7-4X/25Y

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R900564838 DR10DP7-4X/75YV

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R978914703 DR10DP7-4X/25YM/12

R978914704 DR10DP7-4X/75YM/12

力士樂(lè)REXROTH直動(dòng)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

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R900422384 ZDR10DA1-5X/25Y

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R900415411 ZDR10DA1-5X/75Y

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R900442770 ZDR10DA1-5X/75Y/5

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R900559337 ZDR10DA1-5X=150Y=PL

R900776690 ZDR10DA2-5X/150-120Y

R901018332 ZDR10DA2-5X/150-130Y

R901372559 ZDR10DA2-5X/150-80Y

R901362958 ZDR10DA2-5X/150-90Y

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R900931306 ZDR10DA2-5X/25-20Y

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R900503067 ZDR10DA2-5X/315YMSO4

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R900558992 ZDR10DA2-5X/75Y=LB

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R900429112 ZDR10DA2-5X/75YMW102

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R900519131 ZDR10DB3-5X/210YM

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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

旋啟式止回閥的閥瓣繞轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動(dòng)。其流體阻力一般小于升降式止回閥，它適用于較大口徑的場(chǎng)合。旋啟式止回閥根據(jù)閥瓣的數(shù)目可分為單瓣旋啟式、雙瓣旋啟式及多瓣旋啟式三種。單瓣旋啟式止回閥一般適用于中等口徑的場(chǎng)合。大口徑管路選用單瓣旋啟式止回閥時(shí)，為減少水錘壓力，較好采用能減小水錘壓力的緩閉止回閥。雙瓣旋啟式止回閥適用于大中口徑管路。對(duì)夾雙瓣旋啟式止回閥結(jié)構(gòu)小、重量輕，是一種發(fā)展較快的止回閥；多瓣旋啟式止回閥適用于大口徑管路。