力士乐压力控制阀/德国REXROTH东莞代理

力士乐压力控制阀/德国REXROTH东莞代理

REXROTH博世力士乐控制阀的选用 对于结构简单的普通单向阀，主要应注意其开启压力的合理选用：较低的开启压力，可以减小液流经过单向阀的阻力损失；但是，对于作背压阀使用的单向阀，其开启压力较高，以保证足够的背压力。

压力控制阀分类编辑
溢流阀
1.作用
溢流、稳压，在溢去系统多余的油液的同时使泵的供油压力得到调整并保持基本稳定。控制液压系统在达到调定压力时保持恒定状态。用于过载保护的溢流阀称为安全阀。当系统发生故障，压力升高到可能造成破坏的限定值时，阀口会打开而溢流，以保证系统的安全。
2.类型
直动型溢流阀—用于低压场合。
特点：反应灵敏，结构简单、弹簧刚度大、冲击、噪声和压力波动大，适用于低压、小流量的场合，大调节压力为2．5MPa。
先导型溢流阀---用于中、高压场合。
特点:先导阀和主阀阀芯分别处于受力平衡，其阀口都满足压力流量方程;阀的进口压力由两次比较得到，压力值主要由先导阀调压弹簧的预压缩量确定，主阀弹簧起复位作用。
通过先导阀的流量很小，是主阀额定流量的1%，尺寸很小，即使是高压阀，其弹簧刚度也不大，可以改善阀的调节性能。

力士乐压力控制阀/德国REXROTH东莞代理

力士乐应用行业
压路机、混泥土搅拌车、机床、汽车、纺织工业、轻工业、钢厂、采矿业、油田、石化、风能、通用自动化、水利工程、海事工程、冶金、塑料机械、通用机械、压机、钻孔机、叉车、推土机、起重机、装载机、混泥土泵、挖掘机、印刷与纸张处理、食品包装、木工机械、橡胶、电子和半导体。
REXROTH力士乐比例换向阀属于比例阀的一种,用来控制流量和流向。力士乐REXROTH控制...压力控制阀（pressure control valve ）是制压力的阀的总称。在平常中我们都把控制压力的阀的统称为压力控制阀。压力控制阀有时候也简称为压力阀，主要是用来满足对执行机构提出的力或力矩的要求。包括安全阀、溢流阀、减压阀和顺序阀。

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