I/H电液转换器和WSR位阀是控制也压油缸活塞位置的理想且经济的解决方案。这使阀门以精确、高度动态的方式调节流量（例如：蒸汽）。
I/H电液传换器或WSR位阀中的电流输入信号(0/4-20mA)按比例被转换成输出压力或油流量。
德国福伊特VOITH常用型号：
DSG-BO5102              DSG-BO6202            WSR-C45102
DSG-BO5112              DSG-BO6212            WSR-C45115
DSG-BO5103              DSG-BO6203            WSR-C60102
DSG-BO5113              DSG-BO6213            WSR-C60266
DSG-BO7102              DSG-BO7202                  ........
DSG-BO7112              DSG-BO7212            WSR-D16112
DSG-BO7103              DSG-BO7203            WSR-D16118
DSG-BO7113              DSG-BO7213            WSR-D16214
DSG-B10102                DSG-B1O202            WSR-D24115
DSG-B10112                DSG-B1O212            WSR-D60215
DSG-B10103                DSG-B1O203                ........
DSG-B10113                DSG-B1O213          WSR-E60106
DSG-B14102    DSG-B14202            WSR-E60206
DSG-B14112      DSG-B14212              ........
DSG-B14103      DSG-B14203            CTO-B45102
........                                    ........                        ........