O型符号为 其中P表示进油口，T表示回油口，A、B表示工作油口。结构特点：在中位时，各油口全封闭，油不流通。机能特点：1、工作装置的进、回油口都封闭，工作机构可以固定在任何位置静止不动，即使有外力作用也不能使工作机构移动或转动，因而不能用于带手摇的机构
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ASCO 8210G22 DC24V
ASCO EF8342G20 AC220V
ASCO
ASCO
ASCO 8360G74 220VAC
ASCO NFB 316 D014
ASCO SCG262C013
ASCO SCE210C035
ASCO E290A040
ASCO 8300A82U 3/8 90PSI
ASCO EF8320G174 220VAC
ASCO EF8320G174 24VDC
ASCO 8263G333
ASCO NBETB307C039U DC24V
ASCO NAETB307C039 DC24V
ASCO SCG551A001MS 24VDC
ASCO JE3-8344G72 24VDC
WSNF8551A321 24VDC
WSNF8327B132 24VDC
WSNFB316A384V 24VDC
WSNF8551A322 24VDC
NBETB307C039 24VDC
01F/4R-420/3, E-ME-AC-01F/4R-420/6, E-ME-AC-01F/I20, E-ME-AC-01F/I20/2,
E-ME-AC-01F/I20/4, E-ME-AC-01F/口2通口1自由流，附客户节流孔，3口不通CNCD-XEN
导压操作单向阀透气，4口插孔CVIV-XFV
导压操作平衡活塞型RSBC-CWN
电磁方向阀2位2口，滑栓式DLDA-XCN-824
导压操作平衡活塞型RPCC-CCV
直动型RDHA-CWN
导压操作，却压型SQFB-KDV
常关型调压元件LRBA-XDV
抗衡阀透大气，3口插孔CAEL-CFV
2位2口和3口导压操作型方向阀，内部排油DPBD-LBV
电磁方向阀2位3口，滑栓式DMDA-XNN-212
口1通口2自由流CXBA-XCN
直动型附止回阀SCGA-LWN
导压操作减压阀PBJB-CQN
导压操作，却压型RQGB-CBV
回路节省阀保险阀FQCA-XAV
平衡型常开逻辑阀，压力可调DODP-CBV
导压操作平衡活塞型RSHC-CAV
CBIG-CJN标准型，设定压350bar
常关型调压元件LRDC-XDV
直动型RDHA-LWV
2位2口和3口导压操作型方向阀，I20/6, E-ME-AC-01F/RR20/4, E-ME-AC-01F/RR20/A2, E-ME-AC-01F/RR-420, E-ME-AC-01F/RR-420/3, E-ME-AC-01F/RR-420/6,
E-ME-AC-01F-420/2, E-ME-AC-05F20, E-ME-AC-05F20/2,E-ME-AC-05F20/3,
E-ME-AC-05F20/4, E-ME-AC-05F20/A3, E-ME-AC-05F/4R-420/3, E-ME-AC-05F/4R-420/4, E-ME-AC-05F/I20, E-ME-AC-05F/I20/3, E-ME-AC-05F/I20/4, E-ME-AC-05F/RR20, E-ME-AC-05F/RR20/3, E-ME-AC-05F/RR20/4, E-ME-AC-05F/RR-420/3,
E-ME-AC-05F/RR-420/4, E-ME-AC-05F-420/3, E-ME-AC-05F-420/4, E-ME-K-PID,
E-ME-L-01H40/DL17SA, E-ME-L-01H40/DL26SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL35SB, E-ME-L-01H40/DL67SA, E-ME-L-01H40/LQ22SA, E-ME-L-01H40/LQ32SA, E-ME-L-01H40/DL27SB, E-ME-L-01H40/PCNNSA, E-ME-L-01H/DL27SB, E-ME-L-
