品牌:VICKERS/威格士 | 类型:比例阀 | 材质:不锈钢 |
型号:KFDG4V32C20NZMU1H720 | 连接形式:对夹 | 驱动方式:电磁 |
加工定制:否 | 适用介质:油品 | 工作温度:常温 |
零部件及配件:阀杆 | 流动方向:单向 | 形态:蝶式 |
压力环境:常压 | 主体材料:铸铁 | 规格:KFDG4V32C20NZMU1H720 |
类型(通道位置):二通式 |
KFDG4V32C20NZMU1H720
威格士Vickers比例阀
武穴黎翔机电设备有限公司:18934630908(微信同号)
比例多用于开环控制;其次比例阀类型要多,有比例压力、流量控制阀等,控制比伺服药灵活一些。从他们内部结构看,伺服阀多是零遮盖,比例阀则有一定的死区,控制精度要低,向应要慢。但从发展趋势看,特别在比例方向流量控制阀和伺服阀方面,两者性能差别逐渐在缩小,另外比例阀的成本比伺服阀要低许多,抗污染能力也强!
伺服阀与比例阀的区别
伺服阀与比例阀之间的差别并没有严格的规定,因为比例阀的性能越来越好,逐渐向伺服阀靠近,所以近些年出现了比例伺服阀。
非要说差别,主要体现在一下几点:
1.伺服阀中位没有死区,比例阀有中位死区;
2.伺服阀的频响(响应频率)更高,可以高达200Hz左右,比例阀一般几十Hz;
3.伺服阀对液压油液的要求更高,需要精过滤才行,否则容易堵塞,比例阀要求低一些。
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