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德国原装进口博世力士乐比例阀:4WRL16 V120M-3X/G
德国原装进口博世力士乐比例阀:4WRL16 V120M-3X/G
产品价格:¥1
上架日期:2020-01-02 15:10:53
产地:德国
发货地:上海宝山区
供应数量:不限
最少起订:1只
浏览量:99
资料下载:暂无资料下载
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详细说明

    德国原装进口博世力士乐比例阀:0811404206   4WRL16V120M-3X/G24Z4/M

    力士乐比例阀的特点如下:

    1)可实现压力、速度的无极调节,避免了常通的开关式气阀换向时的冲击现象。

    2)能实现远程控制和程序控制。

    3)与断续控制相比,系统简化,元件大大减少。

    4)与液压比例阀相比,体积小、重量轻、结构简单、成本较低,但响应速度比液压系统慢得多,对负载变化也比较敏感。

    5)使用功率小、发热少、噪声低。

    6)不会发生火灾,不污染环境。受温度变化的影响小。




    力士乐比例阀一般采用两端承压面积不等的差径活塞结构。比例阀不工作时,差径活塞2在弹簧3的作用下处于上极限位置,此时阀门1保持开启,因而在输入控制压力P1与输出压力P2从零同步增长的初始阶段,总是P1等于P2。但是压力P1的作用面积A1为π(D2-d2)/4,压力P2的作用面积A2为πD2/4,因而A2大于A1,故活塞上方液压作用力大于活塞下方液压作用力。在P1、P2同步增长过程中,当活塞上、下两端液压作用之差超过弹簧3的预紧力时,活塞便开始下移。当P1和P2增长到一定值PS时活塞2内腔中的阀座与阀门1接触,进油腔与出油腔即为隔绝,使比例阀进入平衡状态。若进一步提高P1则活塞将回升,阀门再度开启,油液继续流入出油腔而使P2不断升高,但由于A2大于A1,P2尚未增长到新的P1值,活塞又下降到平衡位置。在任一平衡状态下,差径活塞的力的平衡方程为:P2路A2=P1路A1+F。

    上海今萨机电设备有限公司主营:

    德国品牌:

    REXROTH(力士乐)、P+F(倍加福)

    PHOENIX(菲尼克斯 ) 、SIEMENS(西门子)

    HAWE(哈威)              HYDAC(贺德克)

    EUPRESS                          FONROOG(佛 郎)

    美国品牌:

    PARKER(派克)、DENISON(丹尼逊)、

    VICKERS(威格士)、 MOOG(穆格)、

    SUN ( 太阳 )、SAUER-DANFOSS (萨奥-丹佛斯)

    意大利   ATOS(阿托斯)

    日本   YUKEN(油 研)            

    备有大量现货,保证原装正品,假一罚十,欢迎大家来咨询!!!!

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