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四川拓思達液壓機械有限公司
四川拓思達液壓機械有限公司
Z系列多路換向閥是由多個換向閥和安全閥及各種附加閥組合而成。它具有工作壓力高、結構緊湊、安全閥性能好、可靠性高、不易外漏、通用性好等特點。它主要用于ZL40以下裝載機及多功能裝載機、小型挖掘機等工程機械的液壓系統中，也用于起重運輸機械、礦山機械、農業機械或其它機械的液壓系統中，實現多個執行機構的集中控制。
Z系列多路換向閥
Z SERIES MULTIPLE DIRECTIONAL CONTROL VALVES
Z系列多路換向閥是由多個換向閥和安全閥及各種附加閥組合而成。它具有工作壓力高、結構緊湊、安全閥性能好、可靠性高、不易外漏、通用性好等特點。它主要用于ZL40以下裝載機及多功能裝載機、小型挖掘機等工程機械的液壓系統中，也用于起重運輸機械、礦山機械、農業機械或其它機械的液壓系統中，實現多個執行機構的集中控制。
該系列多路換向閥每連都帶單向閥。根據用戶需要，可在任一工作腔和回油腔之間安裝過載閥或補油閥。能夠組成并聯、串聯或串并聯復合油路，并有多種滑閥機能、定位、復位方式及控制方式，也可利用過橋閥體或外接油口向其他機構提供油源，廣泛滿足了不同主機的需要。
The Z series multiple directional valves are several direction valves and a variety of additional safety valve and valve combination of the blocks combination valve may require a combination of parts work for even less than 10 multi-valve blocks.It has a high-pressure work,compact,good safety performance,high reliability and general good and so on .It is mainly used for the following ZL40 loader and multi-loaders,excavators,and other small-scale engineering machinery hydraulic system,also used for hoisting and conveying machinery ,mining machinery ,agricultural machinery or other mechanical hydraulic system,the multi-In executing agency of centralized control.
This series of multi valve is all each joint with a one-way valve.According to the needs of the user,can be installed the overload valve and oil charge valve between the any one of the working channel and backing channel.Can be composed of parallel,serial or parallel strings oil complex,and there are a variety of sliding valve function,positioning,reduction and control methods may also make used of the bridge body to the mouth of oil or other external agencies to provide oil to meet a wide range A host of different needs.
功能特點 FUNCTIONS AND FEATURES
閥結構：片式結構，可根據工作機構需要隨意組合10連以內的多路閥組。
Valve structure;Blocks structure ,according to the agencies need to work at random combination of 10 even within the multi-valve block.
附加閥：可以任一工作腔和回油腔之間安裝需要壓力的過載閥和補油閥。
Additional valve:Can be installed the overload valve and oil charge valve between the any one of the working channel and backing channel by need to pressure.
負載保持閥：每連都內置有負載保持和壓力隔斷的單向閥。
Load keeping valve:There are built-in the one-way valve with load keeping the pressure cut-off in every joint.
油路形式：并聯、串聯或串并聯復合油路。
Oil road mode:Parallel,series and series-parallel connection.
過橋：具有過橋功能，可利用過橋閥體或外接油口向其安機構提供油源。
Ditch:With ditch,can provision oil to the install parts though the ditch body or the outlet.
控制方式：手動、液動控制、并具有鋼球定位方式。
Controls:manual,hydraulic operation and spring ball reset.
適用主機：通用性多路閥，主要適用中小型裝載機、挖掘機及其它機械。
Apply to host:Universal multi-valve,main application of the small and medium-sized loaders,excavators and other machinery
性能參數SPECIFICATIONS
| 型號 Model | 公稱通徑 Nom.dia. （mm） | 公稱壓力 Non.pressure （MPa） | 公稱流量 Nom.flow （L/min） | 允許背壓 Allowable back pressres （MPa） | 工作油液Working oil | 計算重量Calculated weight（kg） | ||||||||
| 溫度范圍 Temp.range （℃） | 粘度范圍 Visc.range （mm²/s） | 過濾精度 Filtrating accuracy （μm） | 1連 One piece | 2連 Two piece | n連 N piece | |||||||||
| ZL15 | 15 | 31.5 | 63 | ≤2.5 | -20~+80 | 10~400 | ≤10 | 12.4 | 17.7 | 7.1+5.3n | ||||
| ZL20 | 20 | 100 | 20 | 27.5 | 12.5+7.5n | |||||||||
| ZL25 | 25 | 160 | 29.2 | 42.8 | 15.6+136.6n | |||||||||
| 型號 Model | 公稱通徑Nom.dia. （mm） | 先導液控壓力 Pilot pressure （MPa） | 安全閥及過載閥或二次壓力閥的調壓范圍（MPa） Pressure range of relief valve overload valve or secondary pressure vale | 補油閥開啟壓力（MPa） Opening pressure of the make up valve | ||||||||||
| E | F | G | H | |||||||||||
| ZL15 | 15 | 0.5~2.5 | 4~16 | 6~20 | 8~25 | 10~32 | ≤0.2 | |||||||
| ZL20 | 20 | |||||||||||||
| ZL25 | 25 | |||||||||||||
注：油液zui高污染等級：按GB/T14039之19/16.
Note:Maximum permissible degree of contamination of the oil is according to GB/T14039-19/16.
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