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
CDB系列多路换向阀是我公司根据国内1-10T叉车、小型装载机、小型挖掘机液压系统，并引进、消化、吸收*进技术而进行优化设计的片式多路阀，CDB系列多路换向阀功能全，性能佳、结构紧凑、安全可靠、维修方便。主要适用1-10T叉车、小型挖掘机和小型装载机，还可应用于其他起重运输机械、矿山机械液压系统中，是主机实现进口元件国产化的理想产品。
CDB系列多路换向阀
CDB SERIES MULTIPLE DIRECTIONAL CONTROL VALVES
CDB系列多路换向阀是我公司根据国内1-10T叉车、小型装载机、小型挖掘机液压系统，并引进、消化、吸收*进技术而进行优化设计的片式多路阀，CDB系列多路换向阀功能全，性能佳、结构紧凑、安全可靠、维修方便。主要适用1-10T叉车、小型挖掘机和小型装载机，还可应用于其他起重运输机械、矿山机械液压系统中，是主机实现进口元件国产化的理想产品。
The CDB series multiple directional control valves are based on the company’s 1-10T forklift ,small loaders,small excavators hydraulic system of domestic and the introduction,digestion and absorption of advanced foreign technology and design to optimize the structure of the chip,CDB series multi-directional valves are characterized by wide function ,good performance ,compact,safe,reliable,easy maintenance.Applies mostly to 1-10T forklift ,small-scale mining,small loaders and others machinery .Also can be applied to other transport machinery,mining machinery hydraulic,is the host of imports of components to achieve the ideal of home-made products.
功能特点 Functions and features
阀体结构：片式结构，1-10连内可任意组合。
Body structure:On-chip architecture,from 1 to 10 can be any combination of joints.
油路形式：并联、串并联
Oil ways:Parallel ,series and parallel.
稳流阀：进油阀片内设有稳流装置，保证转向系统正常工作
Steady flow valve:The oil into the valves is equipped with steady flow devices,to ensure the system work properly.
附加阀：换向阀片内可带过载阀、二次压力阀、补油阀等附加阀供用户选择。
Additional valve:The valve can be brought on-chip overload valve,the second pressure valve,recharging oil valve etc.for the user to choose.
前倾限速：具有叉车门架前倾限速，避免门架产生限速运动和气穴现象的R型滑阀机能。
Fore rake speed limit:With a slide valve function of fore rake speed limit for forklift truck door frame.Avoided the door frame to avoid excessive movement and cavitations R.
反冲复位：具有在换向位置达到设定压力的自动反冲复位和弹簧复位、钢球定位方式。
Recoil reduction:With the way of auto recoil reduction,spring reset and ball positioning in the reversing position to achieve pressure
平稳微动性能：节流型OX型滑阀机能保证属具平稳工作，各种机能均有良好的微动性能。
Fretting a stable performance:Throttling OX sliding valve function is to ensure a smooth work,a variety of functions have been fretting a good performance.
单双回路：CDB15型多路换向阀适用于单泵分流双回路系统。CDB20型多路阀适用于双泵分流双回路系统。
Single-double-loop:CDB15 multiple-valve applied to two-circuit system with single pump shunt.CDB20 multi-directional valves applied to two-loop system with double-pump shunt.
负载保持：每连都内置有负载保持和压力隔断的单向阀。
Maintain the load:There are even joint built-in each one-way valve with load keeping and pressure cut-off.
适用领域：1-10T叉车、小型挖掘机、小型装载机及其它机械。
Field of application:1-10T forklift,small-scale mining,small loaders and others machinery.
性能参数 SPECIFICATIONS
| 公称通径Nom dia. （mm） | 15 | 20 | 22 | |||||||||||
| 公称流量Nom flow（L/min） | 80 | 160 | 200 | |||||||||||
| 公称压力Nom.pressure（MPa） | E | F | E | F | G | E | F | G | ||||||
| 16 | 20 | 16 | 20 | 25 | 16 | 20 | 25 | |||||||
| 主安全阀调压范围Pressure range of main relief valve（MPa） | 8~20 | 8~25 | 8~25 | |||||||||||
| 转向安全阀调压范围Pressure range of steering relief valve（MPa） | 3~10 | 8~20 | 8~20 | |||||||||||
| 转向输出流量可选范围Steering flow output range （L/min） | 11~16 | 22~32 | 22~32 | |||||||||||
| 过载阀调压范围（含二次压力阀）Overload valve pressure range（Including secondary pressure valve）（MPa） | 6.3~22 | 8~28 | 8~28 | |||||||||||
| 许用背压Allowable back pressure at port （MPa） | 2 | |||||||||||||
| R阀控制压表R spool control pressure difference（MPa） | ≤2 | |||||||||||||
| 工作油液Working oil | 温度范围Temp.range（℃） | 粘度范围Visc.range（mm²/s） | 过滤精度（μm） Filtrating accuracy | |||||||||||
| -20~+80 | 10~400 | ＜10 | ||||||||||||
| 计算重量 Weight calculation | 型号/Model | 1连/1 piece | 2连/2 piece | 3连/3 piece | N连/n piece | |||||||||
| CDB15 | 8.8 | 11.6 | 14.9 | 5.3.3n | ||||||||||
| CDB20 | 16.7 | 23.7 | 30.7 | 9.7+7n | ||||||||||
| CDB22 | 16.9 | 24.1 | 31.3 | 9.7+7.2n | ||||||||||
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