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武穴黎翔机电设备有限公司，询价联系人：何女士
询价电话：0713-6542758，手机：18934630908
询价传真：0713-6542758
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现货特价型号：R900925687 4WRAE10W1-30-22/G24N9K31/F1V 2台
0811402141 DBETBEX-1X/315G24K31F1M 2台
矿油型液压油润滑性和防锈性好，粘度等级范围较宽，因而在液压系统中应用很广。据统计，目前有90%以上的液压系统采用矿油型液压油作为工作介质。
3.液压油的选择
液压油的选择，首先是油液品种的选择。选择油液品种时，优先选购产品推荐的专用液压油，这是保证设备工作可靠性和寿命的关键，如果确无专用液压油，可根据工作压力及工作温度范围等因素进行考虑。对于垃圾车液压系统建议优先选用L-HM、L-HV油，其次对于一些无贵重液压元件的压力不高的液压系统（如一般的自卸车）无法够得上述液压油时，可用L-HL普通液压油，尽量不采用L-HH油（全损耗系统用油）。
确定了液压油的品种之后，就要选择油的粘度等级（液压油的牌号）。粘度等级的选择十分重要的，因为粘度对液压系统工作的稳定性、可靠性、效率、温升以及磨损都有显著的影响。粘度高的液压油流动时产生的阻力较大，克服阻力所消耗的功率较大，功率又将转化为热量造成油温上升；粘度太低，会使泄漏量增大，系统的容积效率降低，也会造成系统温升加快。
派克BD系列阀具有相同的结构特点，它们由三部分组成：电气力矩马达、双喷嘴先导级和滑阀第二级。
力矩马达：力矩马达包括电气线圈、极靴和衔铁组件。衔铁装在一个倒置的挠性管上，挠性管也在力矩马达和阀的液压段之间起流体密封作用。
先导级：倒置的U型架固定在衔铁轴上并且置于两个喷嘴之间。衔铁运动通过轴传送到倒置架，改变喷嘴的开启，产生压差。架腔中的机械反馈弹簧消除来自高速回流在反馈机构周围的湍流状况。
第二级：这个区域控制输出流量。通过精确匹配阀芯和阀体上的过流锐边，使过流窗口口打开和关闭。打开供油压力至控制口C1或C2,流体将通过阀流出控制口返回。这个阀芯阀/阀体的过流面积是由牢固装在阀芯和先导级机械反馈弹簧上的反馈杆来控制的。
工作过程：当力矩马达没有电信号输入时，衔铁位于极靴气隙中间，平衡永久磁铁的磁性力，当有电流加在线圈上时，衔铁与控制信号成比例地偏转，产生一个顺时针或逆时针运动，方向取决于输入控制信号的极性。形成的力矩转动两喷嘴之间的U型架，引起压力的变化而移动阀芯的位置，导致线性的流量输出，反馈杆和机械弹簧组件提供一个与力矩马达力相反的力，使阀芯产生相对于电信号的可重复的比例运动。
BD15JALND2.5
BD15AFANB15
BD15AEBNB0.5X6300
BD15AAAND10
BD15JALVC2.5
BD15AAANE20
BD15AHANC10
BD30AFENH40
BD15AACVC10
BD15BJJNB20
BD15AAAVH2.5
BD30CAMNE40
BD30AAENE30
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D3FBE01SC0NF00 D3FTE01SCNF00
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D3FBE01MC0NF00 D3FTE01MCNF00
D3FBE02MC0NF00 D3FTE02MCNF00
D3FBE02SC0NF00 D3FTE02SCNF00
D3FBB32MC0NS00 D3FTB32MCNS00
D3FBE01MC0VG00 D3FTE01MCVG00
D3FBE01SE0NKW0 D3FTE01SE0NKW0
D3FBE01SC0NJW316 D3FTE01SCNJW330
D3FBB32SC0NS0016 D3FTB32SCNS0032
D3FBE02SC0NS0017 D3FTE02SCNS0030
D3FBE01SC0NG0016 D3FTE01SCNG0032
D3FBB32MC0NF0017 D3FTB32MCNF0030
D3FBE02SC0NKW016 D3FTE02SCNKW032
D3FBE02SC0VKW017 D3FTE02SCVKW030
D3FXE01HCNBJ00
D3FXE01MCNBJ00
D3FXE01MCVDJ00
D3FLE01SCNWJ00
D3FWE81MCNKW0
D3FWE01MCNJW0
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D3FBB32SCONS00
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D3FBE01SCONG00
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D3FBE01SCONJW3
D3FBE01SEONKW0
D3FTA31MCNKW0
D3FTA31SCNKW0
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D3FTA32MCNKW0
D3FTA32MCVKW0
D3FTA32MKNKW0
D3FTA32SCNKW0
D3FTA32SCVKW0
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D3FTB31MCNF00
D3FTB31MCNKW0
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D3FTB31MCVF00
D3FTB31MCVKW0
D3FTB31SCNF00
D3FTB31SCNKW0
D3FTB31SCNS00XG146
D3FTB32MCNF00
BD15AAANB1
BD15AAANB10
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BD15NALVD2.5
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BD15NALVE20
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BD15NCLVB2.5
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BD90
BD95
