PARKER直动式比例阀设计图 美国丹尼逊直动式比例阀

可减小与O形圈间的摩擦力矩密封组件开启与关闭灵活操作力矩小
阀体隔板及上阀盖轴孔部位镶有铜套
ethe purpose ofdecompression.And then rel
减压阀是个局部阻力可以变化的节流元件即通过改变节流面积
he outlet pressure automatically
使出口压力自动保持稳定的阀门从流体力学的观点看
that is, by changing the throttle
area, so that the kinetic energy of changing the flow

PARKER直动式比例阀设计图 美国丹尼逊直动式比例阀
rate and fluid, causing different
is a local resistance to change spending components,
pressure loss, so as to achiev
因输入压力波动而引起输出压力波动的特性
使流速及流体的动能改变造成不同的
压力损失从而达到减压的目的然后依靠控制与调节系统的调节
maintain a stable valve. rom the
yonregulatory control and regulation systems
point of view of fluid mechanics pressure reducing valve
输出压力波动越小减压阀的特性越好
输出压力必须低于输入压力—定值才基本上不随输入压力变化而变化