广东专业的REXROTH溢流阀供货商
力士乐先导型溢流阀的导阀部分是一个易振部位。在高压情况下溢流时，导阀的轴向开口很小，仅0.003～0.006厘米。过流面积很小，流速很高，可达200米/秒，易引起压力分布不均匀，使锥阀径向力不平衡而产生振动。另外锥阀和锥阀座加工时产生的椭圆度、导阀口的脏物粘住及调压弹簧变形等，也会引起锥阀的振动。所以一般认为导阀是发生噪声的振源部位。
由于有弹性元件（弹簧）和运动质量（锥阀）的存在，构成了一个产生振荡的条件，而导阀前腔又起了一个共振腔的作用，所以锥阀发生振动后易引起整个阀的共振而发出噪声，发生噪声时一般多伴随有剧烈的压力跳动。
力士乐溢流阀是一种液压压力控制阀。在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。力士乐ZDBK/Z2DBK先导式溢流阀的特点：ZDBK/Z2DBK系列是叠加式阀门
-安装面按din 24 340 a型，iso4401和 cetop-rp 121h,带定位针
-3种压力等级
-有5种有效流向可选
-带一个或两个插装溢流阀
-调节元素：带护罩的六角套筒螺钉
是否提供加工定制：否 
类型：溢流阀 
材质：铸铁 
适用范围：机械 
产品别名：油阀 
安装形式：快装 
工作温度：常温 
类型（通道位置）：直通式 
连接形式：快装 
流动方向：单向 
驱动方式：脉冲 
压力环境：常压 
主体材料：铸铁 
公称通径：6和10（mm）mm
REXROTH溢流阀原装型号
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