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阿斯卡電磁閥SCG551A017MS華北總代理                                                                                   ASCO電磁閥551系列電磁閥工作時(shí)，是利用彈簧的壓力來調(diào)節(jié)、控制液壓油的壓力大小：當(dāng)液壓油的壓力小于工作需要壓力時(shí)，閥芯被彈簧壓在液壓油的流入口，當(dāng)液壓油的壓力超過其工作允許壓力即大于彈簧壓力時(shí)，閥芯被液壓油頂起，液壓油流入，從右側(cè)口流出回油箱。液壓油的壓力越大，閥芯被液壓油頂起得越高，液壓油經(jīng)溢流閥流回油箱的流量越大，如過液壓油的壓力小于或等于彈簧壓力，則閥芯落下，封住液壓油進(jìn)口。由于油泵輸出的液壓油壓力固定，而工作油缸用液壓油的壓力總要比油泵輸出液壓油壓力小，所以正常工作時(shí)總會(huì)有一些液壓油從溢流閥處流回油箱，以保持液壓油缸的工作壓力平衡、正常工作。由此可見 ，直動(dòng)式溢流閥的作用是能夠防止液壓系統(tǒng)中的液壓油壓力超出額定負(fù)荷，起安全保護(hù)作用。                                                                                       EF8551A001MS
EF8551A017MS
SCG531B001MS
SCG551B401MO
SCG551A065
SCG551A066
SCG552A001
SCG551A001MS
SCG551A017MS
SCG552A017MS                                                                                                             SCG551A005MS　 24VDC
SCG551A017MS　 230/50
SCG551A017MS　 24VDC
SCG551A018MS　 230/50
SCG551A018MS　 24VDC
SCG551A001MS　 230/50
SCG551A001MS　 24VDC
SCG551A002MS　 24VDC
SCG551A002MS　 230/50
EFG551H401MO　 24VDC
EFG551H401MO　 220/50
EFG551A001MS　 220/50
EFG551A001MS　 24VDC
8210G009　　　 220/50
EF8210G201　　 24VDC
EF8262G212　　 115/50
8223G027　　　 24VDC                                                                                                                 阿斯卡電磁閥SCG551A017MS華北總代理