天津REXROTH比例閥4WR系列專賣REXROTH比例閥4WR系列輸入信號增大，供氣用電磁閥先導閥1換向，而排氣用電磁先導閥7處于復位狀態(tài)，則供氣壓力從SUP口通過閥1進入先導室5，先導室壓力上升，氣壓力作用在膜片2的上方，則和膜片2相連的供氣閥芯4便開啟，排氣閥芯3關閉，產生輸出壓力。REXROTH比例閥4WR系列此輸出壓力通過壓力傳感器6反饋至控制回路8。在這里，與目標值進行快速比較修正，知道輸出壓力與輸入信號成1定比例為止，從而得到輸出壓力與輸入信號的變化成比例的變化。由于沒有噴嘴擋板機構，故閥對雜質不敏感，可靠性高。
REXROTH比例閥4WR系列電磁閥里有密閉的腔，在不同位置開有通孔，每個孔連接不同的油管，腔中間是活塞，兩面是兩塊電磁鐵，哪面的磁鐵線圈通電閥體就會被吸引到哪邊，通過控制閥體的移動來開啟或關閉不同的排油孔，而進油孔是常開的，液壓油就會進入不同的排油管，然后通過油的壓力來推動油缸的活塞，活塞又帶動活塞桿，活塞桿帶動機械裝置。這樣通過控制電磁鐵的電流通斷就控制了機械運動。我還優(yōu)惠銷售REXROTH繼電器、REXROTH放大器、REXROTH柱塞泵、REXROTH葉片泵、REXROTH氣缸，如果您有需要的話可以直接我！下面我把REXROTH比例閥部分圖片給大家看看：
博世力士樂rexroth比例流量閥 力士樂rexroth液壓閥 德國博世力士樂rexroth比例方向閥
REXROTH比例閥4WR系列部分型號如下：
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