。
常开:当线圈通电时，先导孔关闭，阀上腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。当线圈断电时，先导阀芯靠弹簧复位，先导孔打开，阀上腔卸压，活塞靠下腔介质压力推动，电磁阀打开。
主要分类
1、电磁阀从原理上分为三大类：
1）直动式电磁阀：
原理：通电时，电磁线圈产
41PS10-43PS50-36PS50-40 PV08-30PV08-31PV16-23PV42-M30PV70-30PV70-31PV70-33PV70-35PV72-20PV72-21PV72-30PV72-31PV72-33PV72-35PV76-30APV76-31ARV08-20RV08-22RV08-29RV10-
20RV10-22RV10-23RV10-26RV10-28RV12-26RWATO WHQ-
WATO WHQ-014 WATO WHQ-022 WATO WHQ-023 WATO WHQ-024 WATO WKQ-012 WATO WKQ-
WATO WKQ-
WATO WKQ-022 WATO WKQ-023 WATO WKQ-024 WATO WJPQ-212 WATO WJPQ-213 WATO
WJPQ-214 WATO WJPQ-222 WATO WJPQ-223 WATO WJPQ-
威托wato WHR，WKR，WJPR型叠加式单向阀
WHR-
WHR-012 WHR-013 WHR-014 WHR-016 WKR-011 WKR-012 WKR-013 WKR-014 WKR-016
WJPR-212 WJPR-213 WJPR-214 WJPR-312 WJPR-313 WJPR-
威托wato WDHE型,WDKE型电磁方向控制阀
WDHEWDHEWDHEWDHEWDHEWDHE-0714WDHE-0639
威托wato WDKE型电磁方向控制阀
WDKEnbsp;
WDKE
WDKE
WDKEWDKEWDKE-1714
威托WATO WDPHE型先导式电液换向阀
WATO WDPHE-2WATO WDPHE-3
威托wato WMAP型压力继电器
WMAP-160 V16-26RV50-22RV50-26RV52-26RV56-26RV58-20RVD50-20SF08-20SF0-21SF08-22SF08-23SF20-22SF20-23SL08-22SP08-20SP08-21SP08-22SP08-
25SP08-46RSP08-47CSP08-47CLSP08-47DSP08-47DLSP0T6DCM B14 B14 3R** C1
T6DCM B14 B14 3R** C1
T6DCM B14 B14 4L** C1
T6DCM B14 B17 3L** C1
T6DCM B14 B20 4R** C1
T6DCM B14 B20 4R** C1
T6DCM B14 B22 1R** C1
T6DCM B17 B05 3L** C1
T6DCM B17 B08 3R** C1
T6DCM B17 B10 3L** C1
T6DCM B17 B12 3R** C1
T6DCM B17 B12 3R** C1
T6DCM B17 B14 3L** C1
T6DCM B17 B14 3L** C1
T6DCM B17 B17 1R** C1
T6DCM B17 B17 1R** C1
T6DCM B17 B17 3L** C1
T6DCM B17 B17 3L** C1
T6DCM B17 B17 3R** C1
T6DCM B17 B17 3R** C1
T6DCM B17 B17 3R** C1
T6DCM B17 B17 3R** C1
T6DCM B17 B17 3R02 C1 M70598
T6DCM B17 B17 3R02 C1 M70598
T6DCM B20 B03 1R** C18-57D SP08-58D SP10-20SP10-21SP10-46RSP10-47CSP10-47DSP10-57CSP10-57DSP10-58CSP10-58DSP12-20SP12-21SP16-20 SP16-21
SPCL10-30SPCL10-32SV07-31SV07-34SV07-35SV08-20SV08-20JSV08-21SV08-22SV08-23SV08-24SV08-25SV08-26SV08-28 SV08-30SV08-31SV08-33SV08-35SV08-40SV08-41SV08-42SV08-43SV08-
44SV08-45SV08-46SV08-47ASV08-47BSV08-47CSV08-47DSV08-47ESV08-58CSV08-58D SV10-20SV10-21SV10-22SV10-23SV10-24SV10-25SV10-28SV10-29SV10-31SV10-33SV10-34SV10-40SV10-
41SV10-42SV10-43SV10-44SV10-47ASV10-47BSV10-47CSV10-47DSV10-47FSV10-57CSV10-57DSV10-58CSV10-58DSV12-20SV12-21SV12-22SV12-23SV12-24SV12-25SV12-28SV12-29SV12-31SV12-
33SV12-34SV12-40RSV12-41SV12-42SV12-60SV16-20SV16-21SV16-22SV16-23SV20-S38SV20-S39SV38-26SV38-28SV38-30SV38-31JSV38-38SV58-30SV58-40SV58-41SV80