天津REXROTH比例阀4WR系列专卖REXROTH比例阀4WR系列输入信号增大，供气用电磁阀先导阀1换向，而排气用电磁先导阀7处于复位状态，则供气压力从SUP口通过阀1进入先导室5，先导室压力上升，气压力作用在膜片2的上方，则和膜片2相连的供气阀芯4便开启，排气阀芯3关闭，产生输出压力。REXROTH比例阀4WR系列此输出压力通过压力传感器6反馈至控制回路8。在这里，与目标值进行快速比较修正，知道输出压力与输入信号成一定比例为止，从而得到输出压力与输入信号的变化成比例的变化。由于没有喷嘴挡板机构，故阀对杂质不敏感，可靠性高。
REXROTH比例阀4WR系列电磁阀里有密闭的腔，在不同位置开有通孔，每个孔连接不同的油管，腔中间是活塞，两面是两块电磁铁，哪面的磁铁线圈通电阀体就会被吸引到哪边，通过控制阀体的移动来开启或关闭不同的排油孔，而进油孔是常开的，液压油就会进入不同的排油管，然后通过油的压力来推动油缸的活塞，活塞又带动活塞杆，活塞杆带动机械装置。这样通过控制电磁铁的电流通断就控制了机械运动。我还优惠销售REXROTH继电器、REXROTH放大器、REXROTH柱塞泵、REXROTH叶片泵、REXROTH气缸，如果您有需要的话可以直接我！下面我把REXROTH比例阀部分图片给大家看看：
博世力士乐rexroth比例流量阀 力士乐rexroth液压阀 德国博世力士乐rexroth比例方向阀
REXROTH比例阀4WR系列部分型号如下：
0811403577 4WRPNH6C4B15P-2X/M/24PA6C-561
0811403576 4WRPNH6CB40L-2X/M/24PF6G
0811403575 4WRPNH6C3B40L-2X/M/24PA6B
0811403573 4WRPNH6C3B25P-2X/M/24PA6B
0811403564 4WRPNH6C4B25P-2X/M/24PA6B
0811403560 4WRPNH6C3B15P-2X/M/24PA6C-561
0811403559 4WRPNH6C3B04L-2X/M/24PF6G
0811403557 4WRPNH6C3B24L-2X/M/24PF6G
0811403552 4WRPNH6C3B04L-2X/M/24PA6A
0811403550 4WRPNH6C3B40L-2X/M/24PA6A
0811403549 4WRPNH6C3B12L-2X/M/24PA6A
0811403548 4WRPNH6C4B40L-2X/M/24CA6A
0811403545 4WRPNH6C4B40L-2X/M/24PA6A
0811403544 4WRPNH6C4B40L-2X/M/24PF6G
0811403543 4WRPNH6C3B24L-2X/M/24CA6A
0811403542 4WRPNH6C3B40L-2X/M/24CA6A
0811403540 4WRPNH6C3B24L-2X/M/24CF6G
0811403539 4WRPNH6C3B12L-2X/M/24CA6A
0811403538 4WRPNH6C4B12L-2X/M/24CA6A
0811403537 4WRPNH6C3B12L-2X/M/24CF6G
0811403536 4WRPNH6C3B15P-2X/M/24PA6C
0811403534 4WRPNH6C3B24L-2X/M/24PA6A
0811403533 4WRPNH6C4B24L-2X/M/24CA6A
0811403532 4WRPNH6C4B24L-2X/M/24PF6G
0811403531 4WRPNH6C3B40L-2X/M/24PF6G
0811403360 4WRPNH10C3B50L-2X/M/24CA6A
0811403359 4WRPNH10C4B100L-2X/M/24PF6G
0811403358 4WRPNH10C3B100L-2X/M/24PF6G
0811403357 4WRPNH10C3B50L-2X/M/24CF6G
0811403152 3FREEZ6B-1X/35L2G24K31F1MM
0811403151 3FREEZ6B-1X/35L2G24K31A1MM
0811403150 3FREEZ6B-1X/10L2G24K31A1MM
0811403135 3FREX6B-1X/20L2G24-25N9Z4MM-259
0811403130 4WRBA6WA15-2X/G24N9Z4/M
0811403129 4WRPE6EA18SJ-2X/G24K0/A1M
0811403128 4WRPE6EA32SJ-2X/G24K0/A1M
0811403126 4WRP6EA28S-1X/G24Z4/M
0811403124 4WRBA6EB15-2X/G24N9Z4/M
0811403123 2FREX6B-1X/15L1G24-25N9Z4MM
0811403122 4WRBA6XA30-2X/G24N9Z4/M-114
0811403121 3FREZ6B-1X/2,6L2G24-27Z4MM
0811403120 3FREZ6B-1X/35L2G24-27Z4MM-257
0811403119 2FREX6B-1X/35L1G24-25N9Z4MM-254
0811403118 2FREX6B-1X/7,5L1G24-25N9Z4MM-254
0811403117 3FREZ6B-1X/10L2G24-27Z4MM-254
0811403116 3FREX6B-1X/35L2G24-25N12Z4MM-254
0811403115 3FREX6B-1X/7,5L2G24-25N12Z4MM-254
0811403114 3FREZ6B-1X/35L2G24-27Z4MM
0811403113 3FREX6B-1X/35L2G24-25N9Z4MM
0811403112 3FREX6B-1X/7,5L2G24-25N9Z4MM