優勢派克溢流閥 RS10R25S4SN1JW45

優勢派克溢流閥 RS10R25S4SN1JW45　伺服閥的主閥一般來說和換向閥一樣是滑閥結構，只不過閥芯的換向不是靠電磁鐵來推動，而是靠前置級閥輸出的液壓力來推動D3W001CNAW42
D3W001CNGW42
D3W001CNGWS442
D3W001CNJW42
D3W001CNJW4D42
D3W001CNJWS442
D3W001CNJWT42
D3W001CNJW42X5056
D3W001CNJW42X5448
D3W001CNKW42
D3W001CNTW42
D3W001CNYW42
D3W001CVJW42
D3W001CVTW42
D3W001CVYW42
D3W001ENGW42
D3W001ENJW42
D3W001ENJWT42
D3W001ENKW42
D3W001ENTW42
D3W001ENUW42
D3W001ENYW42
D3W001EVJW42
D3W001EVJWI5N42
D3W001FNJW42
D3W001FNJW4D42
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D3W001KNKW42
D3W001KNTW42
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D3W001MNJW4D42
D3W002CNGW42
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D3W002CNJW42
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D3W002CNJWS742
D3W002CNKW42
D3W002CNTW42
D3W002CNUWS442
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D3W002CVJW42
D3W002CVJWS442
D3W002ENAW42
D3W002ENJDJ542
D3W002ENJW42
D3W002ENJWI2N42X976
D3W002ENJWS442
D3W002ENJWTI5N42
D3W002ENTW42
D3W002ENUW42
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，這一點和電液換向閥比較相似，只不過電液換向閥的前置級閥是電磁換向閥，而伺服閥的前置級閥是動態特性比較好的噴嘴擋板閥或射流管閥。 D1VW002ENAW PAVC10032R46C2AP22 D46FHE01G5NB00
D1VW002ENGW PAVC10032R46C2P22 PID00A-400
D1VW002ENJDLJ5 PAVC10032R4C22 D111FSE02L2NLW0
D1VW002ENJEE PAVC10032R4MEP22 D81FHE01H2NB08
D1VW002ENJW PAVC10032R4S22 D81FSB32E1NXW0
D1VW002ENJWI5N PAVC10038R422 D1FPE50HA9NB50
D1VW002ENJWL PAVC10038R4222 D1FPE50MA9VB00
D1VW002ENJWP PAVC10038R42M22 D31FTB32CC1VF00
D1VW002ENJWS2 PAVC1003L4222 D31FTE02CC1VF00
D1VW002ENJWS3 PAVC1003R422 D91FSB11H4NXW0
D1VW002ENJWTI5N PAVC1003R4222 D91FTA32HC4NF00
D1VW002ENKW PAVC1003R42A22 D41FHE01C4NE00
D1VW002ENKWTI5N PAVC1003R4522 D81FHE01F4NE00
D1VW002ENTW PAVC1003R45C22 D1FPE55MB9NB00943
D1VW002ENYW PAVC1003R45HM22 EF96-HB2
D1VW002EVJDLJ5 PAVC1003R45P22 SK-D96FH-N35
D1VW002EVJW PAVC1003R4C22 D1FPE50BB9NS00
D1VW002KNGW PAVC1003R4SP22 D31FSE80B5NXW0
D1VW002KNGWI1N PAVC10092L4222 D1FPB60MB9NB00984
D1VW002KNJEE PAVC10092L426B122 D41FWE01FC2NXW0
D1VW002KNJW PAVC10092L42A22 D1FPE50HB9EB00
D1VW002KNJWI4N PAVC10092L42C22 D3FPE02PC9NB03
D1VW002KNJWL PAVC10092L42HM22 D1FBE01HK0NMW0
D1VW002KNJWS3 PAVC10092L46A4A22 D3FPE55YA9NB00
D1VW002KNJWTI4N PAVC10092L46B3A22

　　也就是說，伺服閥的主閥是靠前置級閥的輸出壓力來控制的，而前置級閥的壓力則來自于伺服閥的入口p，假如p口的壓力不足，前置級閥就不能輸出足夠的壓力來推動主閥芯動作。 
　　而我們知道，當負載為零的時候，如果四通滑閥完全打開，D3W001CNAW42
D3W001CNGW42
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D3W001CNJW42
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D3W001CNJWS442
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D3W001CNJW42X5448
D3W001CNKW42
D3W001CNTW42
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D3W002CNTW42
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D3W002ENAW42
D3W002ENJDJ542
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D3W002ENJWS442
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D3W004CNJDJ542
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D3W004CNJW42XG068
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p口壓力＝t口壓力＋閥口壓力損失（忽略油路上的其它壓力損失），如果閥口壓力損失很小，t口壓力又為零，那么p口的壓力就不足以供給前置級閥來推動主閥芯，整個伺服閥就失效了。所以伺服閥的閥口做得偏小，即使在閥口全開的情況下，也要有一定的壓力損失，來維持前置級閥的正常工作。CPOM2AA25V
CPOM2AA50V
CPOM2AA70V
CPOM2AAHT
CPOM2AAHTV
CPOM2AAV
CPOM2BB25V
CPOM2BB50V
CPOM2BB70V
CPOM2BBHT
D41CPOM2BBHTV
CPOM2BBV
CPOM2DD25V
CPOM2DD50V
CPOM2DD70V
CPOM2DDHT
CPOM2DDHTV
CPOM2DDV
CPOM2DDVX309X692
CPOM2DDVX893 D81CPOM2DDVXG048
CPOM3AAHT
CPOM3AAHTV
CPOM3AAV
CPOM3BBHT
CPOM3BBV
CPOM3DDHT
CPOM3DDHTV
CPOM3DDV
CPOM4AAHTV D91CPOM4BBHTV
CPOM4DDHTN
CPOM4DDHTV
CPOM6AAV
CPOM6BBN
CPOM6BBV
CPOM6DDN

　　伺服閥其實缺點極多：能耗浪費大、容易出故障、抗污染能力差、價格昂貴等等等等，好處只有一個：動態性能是所有液壓閥中*高的。就憑著這一個優點，在很多對動態特性要求高的場合不得不使用伺服閥液控單向閥：用于螺紋連接（32通徑）；用于法蘭連接（從通徑40起）； 
適用于在工作液壓缸上直接安裝； 
可選擇帶或不帶卸載功能； 
集成高壓連接。

R900737034  SFA80F1-1X/M/01
R900737037  SFA80F0-1X/M/01
R900955984  SFA32G0-1X/M/01
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R900972963  SFA50F1-1X/M/01
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R900974273  SFA50FT0-1X/M/01
R900975897  SFA63F0-1X/M/01
R900978200  SFA63F1-1X/M/01
R901062493  SFA63FT0-1X/M/01
R901100835  SFA25G0-1X/M/01
R901163071  SFA80FT1-1X/M/01
R901168305  SFA80FT0-1X/M/01
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