四川拓思达液压机械有限公司
四川拓思达液压机械有限公司
DC20、25、32多路换向阀是我公司根据国内外工程机械液压系统进行优化设计的新型多路换向阀。广泛适用于装载机、汽车起重机、推土机、压桩机等工程机械和大吨位叉车、冶金、农业、塑料等机械的液压系统中，是主机实现进口元件国产化的理想产品。
DC※系列多路换向阀
DC SERIES MULTIPLE DIRECTIONAL CONTROL VALVES
DC20、25、32多路换向阀是我公司根据国内外工程机械液压系统进行优化设计的新型多路换向阀。广泛适用于装载机、汽车起重机、推土机、压桩机等工程机械和大吨位叉车、冶金、农业、塑料等机械的液压系统中，是主机实现进口元件国产化的理想产品。
该阀为片式结构、体积小、功能齐全、油路形式多、有并联、串并联油路，可单泵或双泵供油，多级压力控制和分、合流回路等，安装方便，滑阀可在任意一端伸出，滑阀端部有舌状和叉状二种结构。滑阀机能齐全，除国内已有的机能外，还增加了G型、R型、W型等特殊机能，zui多可以控制10个工作机构，能广泛地满足用户要求。
The DC20、25、32multiple directional control valves are in accordance with domestic and foreign engineering machinery hydraulic systems to optimize the design of the new multi-valve.Widely applicable to the truck crane,bulldozer,large-middle forklift ,loader,pressure machine,such as construction machinery and metallurgy ,agriculture,
plastics machinery hydraulic system,is the host of imports of components to achieve the ideal of home-made products.
The valves for the chip structure,small size,full-featured,in the form of oil,have a parallel,series-parallel circuit can be single or double pump oil pump,multi-level control and pressure points,such as merging circuit.It is easy to install,slide valve can be arbitrarily extended at one end,the end of the slide valve has forked and tongue structures.It’s sliding valve function fully ,in addition to the existing internal functions,but also an increase of G-type,R-type,W-type and others special functions.It can control up to 10 bodies,extensive able to meet user requirements.
功能特点 FUNCTIONS AND FEATURES
阀体结构：片式阀体，可根据工作机构需要组合为10连以内的多路阀组。
Body structure:Body-on-chip,it can be composed to within 10 joint multi-valve blocks.
负载传感功能：具有优良的负载传感功能。
Load-sensing functions:With a good load sensing feature.
大流量：DC32是zui大通径的片式多路阀产品。
Large capacity:DC32 is the largest drift diameter patent multi-chip valve products.
通用性与性：DC系统是功能zui齐的通用片式多路阀，并可根据需要进行多种改型设计。
General and specific:DC series is the most common chip-pronged multi-valve,root and can show the need for a wide range of specialty design modifications.
微动功能：具有良好的微动功能，可实现起重机卷扬点动2-3mm操作。
Fretting:A good micro-features,can move at 2-3mm operation.
油路形式：并联、串并联油路，可单泵或双泵的分、合流回路。
Oil way:Parallel,series-parallel circuit;it can be distributaries loop or confluence loop for single or double pump.
滑阀机能：滑阀机能齐全，有14种。并具有G、R、W特殊机能。
Sliding valve function:With full-function slide valve,14.With G.R.W special functions.
安装连接：滑阀可任意一端伸出，并有舌状、叉状两种形式，油口有法兰螺纹等多种形式。
Installation link:Sliding valve can be slid off the end of the arbitrary,with fork-like and tongue forms,oil ports have threaded flange,and other means.
控制方式：手动、液动操作。
Controls:Manual ,hydraulic operation
负载保持：每连都内置有负载保持和压力隔断的单向阀。
Load keeping:Each joint has one-way valve built-in load keeping and pressure cut-off.
附加阀：可在任一工作口安装过载阀或补油阀，DC32还可以在任一工作口同时安装过载阀和补油阀。
Additional valve:In any one of the outlets can be install the Overload valve or oil fill valve,and can be install the overload valve and the fill valve at the same time in DC32
过桥功能：配置中间阀块或过桥阀块可实现过桥功能或外接油口。
Bridge functions:Achievable the bridge functions or oil port by used Centre adjustment valve block or across bridge valve block
适用领域：起重机、推土机、大吨位叉车、压桩机、装载机及其它机械。
Applicable in the field:Cranes,bulldozers,forklifts large tonnage,pressure machine,loaders and other machinery.
性能参数 SPECIFICATIONS
| 性能 Perf 通径 Dia.（mm） | 公称压力（Mpa） Nom.pressure | 公称流量 Nom.flow （L/min） | zui大流量 Max.flow （L/min） | 许用背压 Allowable Back pressure （Mpa） | 工作油液 Working oil | |||||||||
| 温度范围 Temp.range （℃） | 粘度范围 Visc.range （mm²/s） | 过滤精度 Filtrating accuracy（μm） | ||||||||||||
| E | F | G | H | |||||||||||
| 20 | 16 | 20 | 25 | 31.5 | 100 | 150 | ≤3 | -20~+80 | 10~400 | ≤10 | ||||
| 25 | 200 | 300 | ||||||||||||
| 32 | 250 | 400 | ||||||||||||
| 计算重量 / Weight calculation | ||||||||||||||
| 型号 Model | 1连 / 1 piece | 2连 / 2 pieces | 3连 /3 pieces | n连 / n pieces | ||||||||||
| DC20 | 20.5 | 28.5 | 36.5 | 12.5+8n | ||||||||||
| DC25 | 37 | 49 | 61 | 25+12n | ||||||||||
| DC32 | 54 | 72 | 90 | 36+18n | ||||||||||
注：油液zui高污染等级：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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