电液比例控制阀（简称比例阀）实质上是一种廉价的、抗污染性能较好的电液控制阀。比例阀的发展经历两条途径，一是用比例电磁铁取代传统液压阀的手动调节输入机构，在传统液压阀的基础下：发展起来的各种比例方向、压力和流量阀；二是一些原电液伺服阀生产厂家在电液伺服阀的基础上，降低设计制造精度后发展起来的R9009048014WRAE10WA60-22/G24N9K31/A1VR9009060344WRA6E1-15-22/G24N9K4/VR9009062624WRA6E07-22/G24N9K4/VR9009076504WRA10W60-22/G24N9K4/VR9009081954WRAE6W15-22/G24N9K31/F1VR9009082974WRA10E1-30-22/G24N9K4/VR9009082994WRA10W1-30-22/G24N9K4/VR9009089384WRAE6W15-22/G24N9K31/A1VR9009089784WRA10E1-60-22/G24N9K4/VR9009093894WRAE6E15-22/G24N9K31/A1VR9009096584WRAE10E1-60-22/G24N9K31/A1VR9009107804WRA6E07-22/G24K4/VR9009134424WRAE6W1-15-22/G24N9K31/A1VR9009134434WRA6W15-22/G24N9K4/VR9009134454WRAE6W1-30-22/G24N9K31/A1VR9009134464WRAEB6EA30-22/G24N9K31/A1VR9009136464WRAE10W30-22/G24N9K31/A1VR9009166014WRAE10EA60-22/G24N9K31/A1VR9009171934WRA10EA60-22/G24N9K4/VR9009200554WRAE10W60-22/G24N9K31/F1VR9009205574WRA6E15-22/G24N9K4/VR9009205884WRAE10E30-22/G24N9K31/A1VR9009212454WRA6E30-22/G24N9K4/V-589R9009217394WRA10E30-22/G24N9K4/VR9009224414WRA10W30-22/G24N9K4/VR9009234724WRA6W07-22/G24N9K4/VR9009243774WRA6EB30-22/G24N9K4/VR9009250064WRAE6E07-22/G24N9K31/A1VR9009254564WRAE6E07-22/G24N9K31/F1VR9009255534WRA6EA07-22/G24N9K4/VR9009263654WRA10E60-22/G24N9K4/V-589R9009264734WRAE10EB60-22/G24N9K31/A1VR9009269754WRA6W30-22/G24N9K4/V-589R9009269854WRA10EA30-22/G24N9K4/VR9009284124WRA6W07-22/G24K4/VR9009293184WRAE10E60-22/G24N9K31/F1VR9009314854WRAE6E30-22/G24N9K31/F1VR9009317214WRA10W60-22/G24K4/V-589R9009320034WRAE6W07-22/G24N9K31/A1V)