2FRE6B-2X/2LK4RV力士乐比例阀武汉现货
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≥ 1台¥88.00
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R900930164 4WRZE25E1-220-70/6EG24N9K31/A1D3V
Rexroth液控单向阀具体应用场合如下:
(1)保持压力——滑阀式Rexroth换向阀都有间隙泄漏现象,只能短时间保压。当有保压要求时,可在油路上加一个Rexroth液控单向阀,利用锥阀关闭的严密性,使油路长时间保压。
(2)Rexroth液压缸的“支承”——在立式液压缸中,由于滑阀和管的泄漏,在活塞和活塞杆的重力下,可能引起活塞和活塞杆下滑。将Rexroth液控单向阀接于液压缸下腔的油路,则可防止液压缸活塞和滑块等活动部分下滑。
(3)实现Rexroth液压缸锁紧——当Rexroth换向阀处于中位时,两个Rexroth液控单向阀关闭,可严密封闭液压缸两腔的油液,这时活塞就不能因外力作用而产生移动。
(4)大流量排油——Rexroth液压缸两腔的有效工作面积相差很大。在活塞退回时,液压缸右腔排油量骤然增大,此时若采用小流量的滑阀,会产生节流作用,限制活塞的后退速度;若加设Rexroth液控单向阀,在Rexroth液压缸活塞后退时,控制压力油将Rexroth液控单向阀打开,便可以顺利地将右腔油液排出。 力士乐 比例阀 武汉 现货
(5)作充油阀——立式液压缸的活塞在高速下降过程中,因高压油和自重的作用,致使下降迅速,产生吸空和负压,增设补油装置。Rexroth液控单向阀作为充油阀使用,以完成补油功能。
2FRE6B-2X/2LK4RV