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導閥的軸向開口很小，僅0.003~0.006厘米。過流面積很小，流速很高，可達200米/秒，易引起壓力分布不均勻，使錐閥徑向力不平衡而產生振動。另外錐閥和錐閥座加工時產生的橢圓度、導閥口的臟物粘住及調壓彈簧變形等，也會引起錐閥的振動。所以一般認為導閥是發生噪聲的振源部位
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一八七七一零二二八二九
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：/@.R5V06 591 3L A1 
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REXROTH力士樂溢流閥DB30G2-
REXROTH力士樂溢流閥DB30-2-5X/350MR450E-F1N1N1S1NX0500/59442
MR450E-F1N1N1S2NX0500/59528
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R 2.1-2.1-2.1-2.1,R 2.1-2.1-PYD 700bar,R 2.2.2.2 ,R 2.2-1.2-1.2-1.2,R 2.2-2.2-2.2-2.2-A,R 2.2-2.2-2.2A,R 2.6-2.6-2.6-2.6,R 2.9,R 20.0,R 20.0-PYD,R 21.8,R 23.0,R 25.0 ,R 3.3,R 3.3-1.7-1.7-1.7-1.7,R比例閥DBW20B1-5X315-6EG230N9K4  3.3-1.7-1.7-1.7-1.7A,R 3.35-1.9,R 3.6,R 34.0   R 34.5  R 37.0,R 37.2-2.9-2.9,R 4.2-4.2-4.2-4.2  R 4.3A R 5.3,R 5.6,R 5.6A 

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REXROTH力士樂溢流閥ZDB10VB2-4X/200V
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