位于工作阀片手拉杆的相对一侧，为直动式比例减压阀，驱动滑阀实现比例换向，注意：直动式比例减压阀的比例换向相对于手动比例换向，微动性能不好，若用于流量控制精度较高的应用，应采用比例伺服驱动配置的工作阀片。REXROTH, BUCHER, DELTA POWER, SAUER-DANFOSS 均有伺服驱动的比例多路阀。

上海立新液控单向阀

SV6PA1-L6X  SV6PA2-L6X  SV6PA3-L6X  SV6PA4-L6X

SV6PB1-L6X  SV6PB2-L6X  SV6PB3-L6X  SV6PB4-L6X

SL6PA1-L6X  SL6PA2-L6X  SL6PA3-L6X  SL6PA4-L6X

SL6PB1-L6X  SL6PB2-L6X  SL6PB3-L6X  SL6PB4-L6X

SV10PA1-L4X  SV20PA1-L4X  SV30PA1-L4X  SV10GA1-L4X

SV15GA1-L4X  SV20GA1-L4X  SV25GA1-L4X  SV30GA1-L4X

SV10PB1-L4X  SV20PB1-L4X  SV30PB1-L4X  SV10GB1-L4X

SV15GB1-L4X  SV20GB1-L4X  SV25GB1-L4X  SV30GB1-L4X

SL10PA1-L4X  SL20PA1-L4X  SL30PA1-L4X  SL10GA1-L4X

SL15GA1-L4X  SL20GA1-L4X  SL25GA1-L4X  SL30GA1-L4X

SL10PB1-L4X  SL20PB1-L4X  SL30PB1-L4X  SL10GB1-L4X

SL15GB1-L4X  SL20GB1-L4X  SL25GB1-L4X  SL30GB1-L4X