原裝美國派克電磁閥D4L009N5N91：PARKER比例閥具有應(yīng)用靈活、節(jié)省管路和成本低廉等特點(diǎn)，近年來工程機(jī)械上應(yīng)用越來越廣泛。常用螺旋插裝式比例閥有二通、三通、四通和多通等形式，二通式比例閥主比例節(jié)流閥，它常它元件一起構(gòu)成復(fù)合閥，對(duì)流量、壓力進(jìn)行控制；三通式比例閥主比例減壓閥，也是移動(dòng)式機(jī)械液壓系統(tǒng)中應(yīng)用較多比例閥，它主對(duì)液動(dòng)操作多路閥先導(dǎo)油路進(jìn)行操作。利用三通式比例減壓閥可以代替?zhèn)鹘y(tǒng)手動(dòng)減壓式先導(dǎo)閥，它比手動(dòng)先導(dǎo)閥具有更多靈活性和更高控制精度?？梢灾瞥扇鐖D1所示比例伺服控制手動(dòng)多路閥，不同輸入信號(hào)，減壓閥使輸出活塞具有不同壓力或流量進(jìn)而實(shí)現(xiàn)對(duì)多路閥閥芯位移進(jìn)行比例控制。四通或多通螺旋插裝式比例閥可以對(duì)工作裝置實(shí)現(xiàn)單獨(dú)控制。

D31系列比例換向閥型號(hào)如下：

D31DL1C4N

D31DW001C1NJPG3A

D31DW001C1NYCF

D31DW001C2NJPM

D31DW001C4NJGLGJ7Y

D31DW001C4NJPG

D31DW001C4NJPGT

D31DW001C4NJPM3A

D31DW001C4NJWG

D31DW001C4NKPM

D31DW001C4NYC

D31DW001C4NYPF

D31DW001C4NYWF

D31DW001C4VJPG

D31DW001C4VTPF

D31DW001C4VTPH

美國派克電磁閥

D31DW002C1NKCG

D31DW003C1NJWG

D31DW003C4NYWF

D31DW004C1NJDLMJ5

D31DW004C1NTPF

D31DW004C4NJCLM56

D31DW004C4NJCM56

D31DW004C4NJDLMJ5

D31DW004C4NJGLG56

D31DW004C4NJGLMJ7Y

D31DW004C4NJWG

D31DW004C4NYCF56

D31DW004C4VJDLMJ5

D31DW004C4VJGLGJ7Y

D31DW004C4VYWF

D31DW004C5NJPM

D31DW004E4NJPM

D31DW008C2NJCG

D31DW009C1NTPF

D31DW009C5NJPG

D31DW010C4NJDLGJ5

D31DW011C1NJDLMJ5

D31DW011C1NJWG

D31DW011C2NJWG

D31DW011C4NJCLG56

D31DW011C4NJCLM56

D31DW011C4NJCM56

D31DW011C4NJDLMJ5

D31DW011C4NJGLG56

D31DW011C4NJGLMJ7Y

D31DW011C4NJGLM7Y

原裝美國PARKER電磁閥