Parker派克TDA系列比例节流阀Parker派克TDA系列比例节流阀是由三级组成。阀锥由座阀结构的伺服阀芯进行先导控制。带力反馈的比例电磁阀调节伺服阀芯的位置。因此阀锥的位置不会受到压差的影响。压差可以达到***大的工作压力。先导控制的控制油流量大约为1l/min。工作的***低压力为3bar。控制压力必须大于A口处系统压力的25％。流量的调节精度为0.5％。由于流量特性曲线是渐进的，因此当小流量时，该调节精度在渐进区域内被改善为0.25％。整个行程的调节时间大约为25ms。当油液由B向A流动时，在关闭的初始位置上由B向A不能有泄漏。在该初始位置上先导控制不需要控制油。回油口T的压力不能高于100bar。TDA080EW09A2NLW21TDA025EW09B2NXWTDA032EW09B2NXWTDA025EW09B2NXW20TDA032EW09B2NXW21TDA050EW09B2VXW20TDA050EW09B2NXW20TDA050EW09B2NLW20TDA050EW09A2NXW20TDA050EW09A2NLW20TDA080EW09B2NLW21TDA080EW09B2NXW21TDA040EW09B2NXW20TDA040EW09B2VXW20TDA040EW09B2NLW20TDA040EW09B2VLW20TEA080EW09B2NLWJ21X824TEA080EW09B2NLWJ21TEA080EW09B2NXWJ21TDA040EW09A2NXW20TDA040EW09A2VXW20TDA040EW09A2NLW20TEA050EW09B2VXWJ22TEA050EW09B2NXWJ22TEA050EW09B2VLWJ22TEA050EW09B2NLWJ22X824TEA050EW09B2NLWJ22TEA050EW09B2NLWU22TDA032EW09B2VXW20TEA050EW09A2NXWJ22TEA080EW09B2NLWJ21X683TDA032EW09B2NXW20TEA050EW09A2NLWJ22TDA032EW09B2NLW20TEH050EL09B2N22X29TEA063EW09B2NLWJ21X824TEA063EW09B2NXWJ21X793TDA100EW09A2NXW21TEA063EW09B2VLWJ21TEH032EL09B2NWJ22TEH025EL09B2NWJ22TEA063EW09A2NLWJ21TEH025EL09B2NWG22TEH025EL09B2NWU22TEA063EW09B2NLWJ21TEA063EW09B2NXWJ21TEH040EL09B2N22X29TEA040EW09B2NXWJ22TEH050EL09B2NWJ22TEA040EW09B2NLWJ22TEA040EW09B2VLWJ22TEH050EL09B2NWU22TDA100EW09B2NLW21TDA100EW09B2NXW21TDA063EW09B2VLW21TDA063EW09B2VXW21TDA063EW09A2NLW21TDA063EW09A2NXW21TEH050EL09A2NWJ22TEA040EW09A2NLWJ22TDA063EW09B2NLW21TDA063EW09B2NXW21TEH040EL09B2NWJ22V-TDADV1007P04LAFTEA025EW09B2NXWJ22TDA080EW09A2NXW21TDA080EW09A2NLW21TEA100EW09A2NLWJ21TEA032EW09B2NXWJ22TEA025EW09B2NLWJ22TDL063EH99B2NB041TDL063EH99B2NE041TEA032EW09B2NLWJ22TEA100EW09B2NLWJ21TDL100EH99B2NB041TDL100EH99B2NE041TDA032EW09A2NXW20TDA025EW09B2VXW20TDA032EW09A2NLW20TEH080EL09B2NWJ21X824TEA100EW09B2NLWJ21X683TEH080EL09B2NWJ21TEH063EL09B2NWJ21TEH100EL09A2NWJ21TDA025EW09B2NXW20TDA025EW06B2NXW20TEH063EL09B2NWU21TDA016EW09B2VXW20TEAPV1007P04MATDL050EH99B2NB041TDA025EW09B2NLW20TDL050EH99B2NE041TDA025EW06B2NLW20TDA016EW09B2NXW20TDA016EW06B2VXW20TDL080EH99B2NB041TDA016EW06B2NXW20TDA016EW09B2NLW20TDA016EW06B2NLW20TDA025EW09A2VXW20TEA032EW09A2NLWJ22TDADV1007P04LATDA025EW09B2VXW20X993TDA025EW09A2NXW20TDA025EW06A2NXW20TDA025EW09A2NLW20TDADV1007P04MATDL040EH45B2NB041TDL040EH99B2NB041TDA016EW09A2NXW20TDA016EW09A2NLW20TEH080EL09A2NWJ21TDA016EW29B2NXW20TEH100EL09B2NWJ21TDAEB5P20ADAPTERTDAEX5P20ADAPTERTDAEV1007P10LAFTDA040EW09B2NLE20-ATEXTDA016EW49B2NXW20)