?SV10PB2-4X/V

武穴黎翔機電設備有限公司，詢價聯系人：何女士

詢價電話：0713-6542758，手機：18934630908????

詢價傳真：0713-6542758

詢價QQ:?736567721,704552157

現貨特價型號：R900925687?4WRAE10W1-30-22/G24N9K31/F1V??2臺

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　　而我們知道，當負載為零的時候，如果四通滑閥完全打開，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。

　　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最高的。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，如飛機火箭的舵機控制、汽輪機調速等等。動態要求低一點的，基本上都是比例閥的天下了。?SAGAM-10/350?34

SAGAM-10/350?53

SAGAM-20/10/350

SAGAM-20/10/350-X?24DC

SAGAM-20/210?53

SAGAM-20/350?53

SAGAM-32/10/350?53?

SAGAM-32/350?53

　　一般說來，好像伺服系統都是閉環控制，比例多用于開環控制；其次比例閥類型要多，有比例壓力、流量控制閥等，控制比伺服藥靈活一些。從他們內部結構看，伺服閥多是零遮蓋，比例閥則有一定的死區，控制精度要低，向應要慢。但從發展趨勢看，特別在比例方向流量控制閥和伺服閥方面，兩者性能差別逐漸在縮小，另外比例閥的成本比伺服閥要低許多，抗污染能力也強！

伺服閥與比例閥的區別

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?　　伺服閥與比例閥之間的差別并沒有嚴格的規定，因為比例閥的性能越來越好，逐漸向伺服閥靠近，所以近些年出現了比例伺服閥。?

　　非要說差別，主要體現在一下幾點：?

　　1.伺服閥中位沒有死區，比例閥有中位死區；?

　　2.伺服閥的頻響（響應頻率）更高，可以高達200Hz左右，比例閥一般最高幾十Hz；?

　　3.伺服閥對液壓油液的要求更高，需要

T6DCM-B50-B10-3R00-C1

T6DCM-B45-B05-3R00-C1

T6DCM-B45-B22-3R00-C1

T6DCM-B50-B31-3R00-C1

T6DC-045-020-3L00

T6DCM-B24-B05-3R00-C1

T6DC-050-005-3L00

T6D-028-3L00

T6D-042-3L00

T6D-028-3R00

T6D-038-3R00

T6DC-024-005-3L0C

T6DC-031-006-3R01

T6DC-035-020-3L00

T6D-024-3ROO

T6DC-050-031-2R00-B1

T6DC-035-031-2R00-B1

T6DC-024-012-1R00-B1

T6DC-020-008-1R00-C100

T6DC-017-006-1R00

T6D-045-1R03

T6D-045-1R03

T6DCM-B31-B05-3L00-C1

T6DCM-B42-B10-3L00-C1

T6DCM-B45-B08-3R00-C1

T6DCM-B45-B05-3L00-C1

T6DCM-B31-B05-3R00-C1

T6DC-031-006

T6DC-045/022-1R00

T6DC-045-028-5R00B1

T6DCM-B45-B05-3R00-C1

T6DCM-B45-B22-3R00-C1

T6DCM-B50-B31-3R00-C1

T6DM-B24-3R00-C1

T6DM-B28-3L00-C1

T6DM-B31-3R00-C1

T6DM-B42-3R00-C1

T6DCM-B50-B05-3L00-C1

T6DCM-B24-B05-3R00-C1

T6DM-B28-3R00-C1

T6DM-B31-3R00-C1

T6DM-B42-3R00-C1

T6DCM-B50-B05-3L00-C1

T6DCM-B24-B05-3R00-C1

T6DCM-B24-B05-3R00-C1

T6DCM-B24-B05-3R00-C1

T6DM-B28-3R00-C1

T6DCM-B24-B05-3L00-C1

T6DCM-B31-B06-3R01-C1

T6DM-B24-3R00-C1T6CM-B05-3R00-C1

T6CM-B25-3R00-C1

T6CCM-B05-B05-1L00-D100

T6CCM-B05-B05-5R00-D100

T6CCM-B08-B05-5R00-D1-OO

T6CM-B05-3R00-C1

T6CCM-B28-B05-5R00-D1-00

T6CC-028-005-5LOO

T6C-025-3R00

T6CC-005-005-1L00