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4WE6D62/EG220N9K4/V 24V开关电磁阀 德国博世力士乐REXROTH电磁阀 电磁方向阀
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4WE6D62/EG220N9K4/V 24V开关电磁阀
类型:直动式、先导式
作用:
(1)在不断溢流过程中保持系统压力恒定,起稳压和溢流作用(p,FP
系统’阀口常开) ;
(2)防止液压系统过载,起安全保护作用(p,=1.1~1.2p,max,阀口常闭)
(一)溢流阀的基本结构及其工作原理
1、直动式溢流阀
工作原理:
直接利用液压力与弹簧力相平衡以控制阀芯的启闭动作,从而保证进油口压力基本恒定。
特点:
①阀芯所受的液压力全靠弹簧力平衡,故当系统压力很高时,弹簧必须很硬,导致结构笨重,调压不轻便。一般用于压力小于2.5MPa的低压系统中,作安全阀或背压阀使用。
②由于惯性或负载的变化,导致q、变化,即开口度h的变化,由于k很大,所以p不稳定,稳压精度差;
③结构简单、便宜,但工作时易产生振动和噪音。
4WE6D62/EG220N9K4/V 24V开关电磁阀
交流电磁铁:使用电压为交流110、220、380V。特点是启动力大,不需要专门的电源,吸合、释放快,动作时间约为0.01 ~0.03s。缺点是电源电压下降15%以上,电磁铁吸力明显减小,若衔铁不动作,干式电磁铁会在10~15min (湿式1~1.5h) 后烧坏线圈,且冲击及噪声大,寿命低,允许切换频率为10次1分。
直流电磁铁:使用电压为直流110和24V,工作可靠,吸合释放时间约为0.05~ 0.08s,切换频率般为120次/分,冲击小、体积小、寿命长,但需要专门的直流电源,成本高。
电磁阀的线圈是指电感器。是指导线一根一根绕起来,导线彼此互相绝缘,而绝缘管可以是空心的,也可以包含铁芯或磁粉芯,简称电感。电感又可分为固定电感和可变电感,固定电感线圈是由导线一圈靠一圈地绕在绝缘管上,导线彼此互相绝缘,而绝缘管可以是空心的,也可以包含铁芯或磁粉芯,简称电感或线圈。用L表示,单位有亨利(H)、毫亨利(mH)、微亨利(uH),1H=10^3mH=10^6uH。
电磁阀线圈的额定电压有DC12V、DC24V、AC24V(50/60Hz)、AC110V(50/60Hz)、AC220V(50/60Hz)、AC380V(50/60Hz)。一般在电气设计时要么采用AC220V(不需加装开关电源,成本低、线路简单而便于维护)、要么采用DC24V(常用的的安全电压、开关电源/电磁阀线圈都易于维修更换)。
检测电磁阀好坏的方法:先给电磁阀通上被控制的介质(带压力的液体、气体<空气>,压力值为电磁阀使用压力范围的中间值),再给电磁阀线圈通电,如果被控制介质有从通到断或从断到通的状态的变化,那么电磁阀就是好的,否则就是有问题的。
4WE6D62/EG220N9K4/V 24V开关电磁阀
WE 型号的方向阀为电磁线圈操作的方向滑阀。这些阀控制流体的启动、停止和方向。
这些方向阀主要由壳体 (1)、一个或两个线圈 (2)、控制阀芯 (3) 和一个或两个复位弹簧 (4) 组成。
在断电情况下,控制阀芯 (3) 由复位弹簧 (4) 固定在中心位置或初始位置(脉冲阀芯除外)。控制阀芯 (3) 由液压油 (2) 中带湿式插脚的线圈启动。
要确保正常运行,必须注意将线圈的压力腔注满液压油。
线圈 (2) 的力通过推杆 (5) 作用在控制阀芯 (3) 上并将后者从其静止位置推到所需的终端位置。这可实现 P → A 和 B → T 或 P → B 和 A → T 的必要流向。
线圈 (2) 断电后,复位弹簧 (4) 会将控制阀芯 (3) 推回其静止位置。
手动应急操作 (6) 可在线圈不通电的情况下移动控制阀芯 (3)。
不带弹簧复位“O”(仅可使用符号 A、C 和 D)
这种型号为带两个阀芯位置和两个线圈且不带定位设备的方向阀。在断电情况下,阀芯位置不确定。
不带弹簧复位,带有定位设备“OF”(脉冲阀芯,仅可使用符号 A、C 和 D)
这种型号为带两个阀芯位置、两个线圈和一个定位设备的方向阀。它轮流锁定两个阀芯位置,因此线圈无需永 久通电。
注意:
由于设计原因,阀门难免会存在内部泄漏,且泄漏量会随着使用寿命的延长而增加。
开关电磁阀供应型号
力士乐电磁阀库存产品型号
NG6电磁换向阀4/2 4WE6D6X/SG24N9K4 70
NG6电磁换向阀4/2 4WE6Y6X/SG24N9K4 90
NG6电磁换向阀4/2 4WE6EA6X/SG24N9K4 68
NG6电磁换向阀4/2 4WE6EB6X/SG24N9K4 72
NG6电磁换向阀4/2 4WE6HB6X/SG24N9K4 75
NG6电磁换向阀4/3 4WE6E6X/SG24N9K4 53
NG6电磁换向阀4/3 4WE6J6X/SG24N9K4 120
NG6电磁换向阀4/3 4WE6M6X/SG24N9K4 20
NG6电磁换向阀4/3 4WE6L6X/SG24N9K4 17
NG6电磁换向阀4/3 4WE6H6X/SG24N9K4 17
NG6电磁换向阀4/3 4WE6E6X/SG24N9K4 19
NG6电磁换向阀4/3 4WE6G6X/SG24N9K4 22
NG6电磁换向阀4/2 4WE6C6X/EG24N9K4 84
NG6电磁换向阀4/2 4WE6D6X/EG24N9K4 160
NG6电磁换向阀4/2 4WE6Y6X/EG24N9K4 42
NG6电磁换向阀4/2 4WE6EA6X/EG24N9K4 45
NG6电磁换向阀4/2 4WE6EB6X/EG24N9K4 45
NG6电磁换向阀4/2 4WE6HB6X/EG24N9K4 76
NG6电磁换向阀4/2 4WE6HA6X/EG24N9K4 45
NG6电磁换向阀4/3 4WE6E6X/EG24N9K4 45
NG6电磁换向阀4/3 4WE6J6X/EG24N9K4 45
NG6电磁换向阀4/3 4WE6JB6X/EG24N9K4(双头改单头)86
NG6电磁换向阀4/3 4WE6M6X/EG24N9K4 20
NG6电磁换向阀4/3 4WE6L6X/EG24N9K4 21
NG6电磁换向阀4/3 4WE6H6X/EG24N9K4 18
NG6电磁换向阀4/3 4WE6U6X/EG24N9K4 16
NG6电磁换向阀4/3 4WE6GA6X/EG24N9K4 12
NG6电磁换向阀4/3 4WE6G6X/EG24N9K4 19
NG6电磁换向阀4/2 4WE6D6X/OFEG24N9K4 20
NG6电磁换向阀4/2 4WE6D62/EW230N9K4 41
NG6电磁换向阀4/2 4WE6Y62/EW230N9K4 42
NG6电磁换向阀4/3 4WE6E62/EW230N9K4 62
NG6电磁换向阀4/3 4WE6J62/EW230N9K4 82
NG6电磁换向阀4/3 4WE6G62/EW230N9K4 25
NG6电磁换向阀4/2 4WE6D61/EW230NZ4/V 54
NG6电磁换向阀4/2 4WE6D62/EW110N9K4(改线圈) 10
NG6电磁换向阀4/2 4WE6E62/EW110N9K4(改线圈)
NG6电磁换向阀4/2 4WE6J62/EW110N9K4(改线圈)
NG6电磁换向阀4/3 4WE6G62/EW110N9K4
NG6电磁换向阀4/3 4WE6R73-6X/EG24N9K4/A12 10
NG6电磁换向阀4/2 4WE6D53/OFAW110N-50N24 12
NG10电磁换向阀4/2 4WE10D3X/CG24N9K4 78
NG10电磁换向阀4/2 4WE10EA3X/CG24N9K4 63
NG10电磁换向阀4/2 4WE10EB3X/CG24N9K4 64
NG10电磁换向阀4/2 4WE10Y3X/CG24N9K4 68
NG10电磁换向阀4/3 4WE10E3X/CG24N9K4 46
NG10电磁换向阀4/3 4WE10J3X/CG24N9K4 51
NG10电磁换向阀4/3 4WE10L3X/CG24N9K4 14
NG10电磁换向阀4/3 4WE10U3X/CG24N9K4 16
NG10电磁换向阀4/2 4WE10C3X/CG24N9K4 19
NG10电磁换向阀4/3 4WE10G3X/CG24N9K4 17
NG10电磁换向阀4/3 4WE10H3X/CG24N9K4 16
NG10电磁换向阀4/2 4WE10D3X/CW230N9K4 34
NG10电磁换向阀4/3 4WE10E3X/CW230N9K4 41
NG10电磁换向阀4/3 4WE10J3X/CW230N9K4 47
NG10电磁换向阀4/3 4WE10G3X/CW230N9K4 46
NG10电磁换向阀4/3 4WE10H3X/CW230N9K4 41
NG10电磁换向阀4/2 4WE10D3X/CW110N9K4(改线圈) 8
NG10电磁换向阀4/2 4WE10H3X/CW110N9K4(改线圈) 8
NG16电液换向阀4/2 4WEH16C7X/6HG24N9K4 21
NG16电液换向阀4/2 4WEH16EA7X/6HG24N9K4 27
NG16电液换向阀4/2 4WEH16Y31-7X/6HG24N9K4 24
NG16电液换向阀4/2 4WEH16D7X/6HG24N9K4 26
NG16电液换向阀4/3 4WEH16E/6HG24N9ETK4 21
NG16电液换向阀4/3 4WEH16J/6HG24N9ETK4 20
NG16电液换向阀4/3 4WEH16L/6HG24N9ETK4 22
NG16电液换向阀4/3 4WEH16U/6HG24N9ETK4 25
NG16电液换向阀4/2 4WEH16D7X/6EG24N9ETK4 26
NG16电液换向阀4/2 4WEH16EA7X/6EG24N9ETK4 17
NG16电液换向阀4/2 4WEH16EB7X/6EG24N9ETK4 22
NG16电液换向阀4/3 4WEH16E7X/6EG24N9ETK4 19
NG16电液换向阀4/3 4WEH16J7X/6EG24N9ETK4 15
NG22电液换向阀4/2 4WEH22Y31-7X/6HG24N9ETK4 11
电磁换向阀 M-3SEW6U32/420MG24N9K4 16
电磁换向阀 M-3SEW6C32/630MG24N9K4 10
先导式安全阀是依靠从导阀排出的介质来驱动或控制的。而导阀本身是一个直接作用式安全阀,有时也采用其他形式的阀门。先导式安全阀适用于高压、大口径的场合。先导式安全阀的主阀还可以设计成依靠工作介质来密封的形式,或者可以对阀瓣施加比直接作用式安全阀大得多的机械载荷,因而具有良好的密封性能。同时,它的动作很少受背压的影响。这种安全阀的缺点在于它的可靠性同主阀和导阀有关,动作不如直接作用式安全阀那样迅速、可靠,而且结构较复杂。
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R901170301 4WE6D6X/EG205N5K4/T06V
R901329637 4WE6D6X/EG205N5K4/T06ZV
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R901174961 4WE6D6X/EG205N7K4/T06ZV
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R900978323 4WE6D6X/EG220N9K4/B10
R983051590 4WE6D6X/EG220N9K4/B10IN010
R901015855 4WE6D6X/EG220N9K4/B10V
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R900964230 4WE6D6X/EG220N9K4/B30
R901008688 4WE6D6X/EG220N9K4/V
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R901076530 4WE6D6X/EG220N9K4/V/60
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R901150116 4WE6D6X/EG220N9K4QMBG24/V
R900740324 4WE6D6X/EG220N9K4QSABG24E
R901244374 4WE6D6X/EG220N9K4QSABG24W
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R901036826 4WE6D6X/EG240N9K4K/V
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R901016842 4WE6D6X/EG24C4
R978011610 4WE6D6X/EG24DK23L/62
R900724817 4WE6D6X/EG24DK25L
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R900727223 4WE6D6X/EG24DL/B10
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R900741628 4WE6D6X/EG24K33LSO407
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R978020955 4WE6D6X/EG24K4/62
R900951732 4WE6D6X/EG24K4/B08
R900928702 4WE6D6X/EG24K4/B10
R901017436 4WE6D6X/EG24K4/B10=CSA
R901325203 4WE6D6X/EG24K4/B10V
R900917755 4WE6D6X/EG24K4/B12
R901264891 4WE6D6X/EG24K4/B12/62=CSA
R900247663 4WE6D6X/EG24K4/T06V
R900902416 4WE6D6X/EG24K4/V
R901177712 4WE6D6X/EG24K4/X08
R900739205 4WE6D6X/EG24K4=CSA
R901393943 4WE6D6X/EG24K4K/Z=NE
R900933840 4WE6D6X/EG24K4QMAG24
R901174214 4WE6D6X/EG24K4QMAG24/B12
R901218763 4WE6D6X/EG24K4QMAG24/V
R900574632 4WE6D6X/EG24K4QMBG24
R900948550 4WE6D6X/EG24K4QMBG24SO825
R901074349 4WE6D6X/EG24K4QMBG24/B12=CSA
R901401986 4WE6D6X/EG24K4QMBG24/MH
R901029357 4WE6D6X/EG24K4QMBG24/R08
R900958185 4WE6D6X/EG24K4QMBG24/T06
R900976142 4WE6D6X/EG24K4QMBG24/V
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R901127681 4WE6D6X/EG24K4QMBG24/Z
R901191163 4WE6D6X/EG24K4QMBG24/ZV
R901149437 4WE6D6X/EG24K4QMBG24/ZV=KM
R900704752 4WE6D6X/EG24K4QMBG24=CSA
R901321483 4WE6D6X/EG24K4QMBG24=KM
R901188305 4WE6D6X/EG24K4QRBG24S/ZV
R901347826 4WE6D6X/EG24K4QRBG24S/ZV/62
R901160780 4WE6D6X/EG24K4QRBG24S/ZV=KM
R901421507 4WE6D6X/EG24K72L
R901266786 4WE6D6X/EG24K72L/B10
R901358833 4WE6D6X/EG24K72L/B10/62
R901353269 4WE6D6X/EG24K72L/B10=AN
R901291365 4WE6D6X/EG24K72LQMBG24
R901233643 4WE6D6X/EG24N2C4
R900784095 4WE6D6X/EG24N2CK03
R901352757 4WE6D6X/EG24N2DK6L/V
R987045606 4WE6D6X/EG24N2DKL/T06V
R900775337 4WE6D6X/EG24N2DKL/T06V
R901106949 4WE6D6X/EG24N2DKL/V
R900929777 4WE6D6X/EG24N2K4
R900618760 4WE6D6X/EG24N2K4/V
R901188800 4WE6D6X/EG24N2K4/V=CSA
R900244713 4WE6D6X/EG24N2K4=CSA
R900555431 4WE6D6X/EG24N2Z4
R901047091 4WE6D6X/EG24N4C4
R901052716 4WE6D6X/EG24N4C4QMAG24
R900961360 4WE6D6X/EG24N4DK50L
R900703419 4WE6D6X/EG24N4DK51L
R901225846 4WE6D6X/EG24N4DL
R901362688 4WE6D6X/EG24N4DL1/T06
R900908763 4WE6D6X/EG24N4K4
R901239394 4WE6D6X/EG24N4K4/B10
R901316372 4WE6D6X/EG24N4K4/B10V
R901250596 4WE6D6X/EG24N4K4/B12V
R900974260 4WE6D6X/EG24N4K4/H00
R900552467 4WE6D6X/EG24N4K4/V
R900750983 4WE6D6X/EG24N4K4=CSA
R900935431 4WE6D6X/EG24N4K4QMAG24
R900566567 4WE6D6X/EG24N4Z4
R900550715 4WE6D6X/EG24N4Z5L
R901407017 4WE6D6X/EG24N5DL1
R900616414 4WE6D6X/EG24N5K4
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阀门在串联使用时,随着开度变化,,阀前后压差也有变化,因此使阀门的工作特性曲线偏离理想特性。如果管路阻力大,直线性会变成快开特性,而丧失调节能力。等百分比特性将变成直线特性。小流量情况下,由于很少有管路阻力,上述特性畸变就不大了,对等百分比特性,实际上也就没有必要。从制造的角度来说, Cv =0.05以下时,也不可能再产生等百分比的侧面形状。因此,对小流量阀主要的问题是如何将流量控制在所需要的范围之内。
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