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英国NORGREN诺冠压力比例阀 

    鑫工海优势供应英国NORGREN诺冠压力比例阀 ,如果您对英国NORGREN诺冠压力比例阀 感兴趣,想要采购英国NORGREN诺冠压力比例阀 产品的话,可以咨询客服或者直接联系18666222185.


英国NORGREN诺冠压力比例阀特点

G1/4

可靠的比例 I/P和E/P转换器

适用范围宽

高精度

大流量

常规应用保护等 IP 65

诺 NORGREN比例阀按结构形式可分为薄膜式、薄膜式减压阀、活塞式、杠杆式和波纹管式;按阀座数目可人为特价英国诺 压力比例阀

单座式和双座式;按阀瓣的位置不同可分为正作用式和反作用式。

(1) 调压范围:它是指减压阀输出压力P2的可调范围,在此范围内要求达到规定的精度。调压范围主要与调压弹簧的刚度有关。 

(2) 压力特性:它是指流量g为定值时,因输入压力波动而引起输出压力波动的特性。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。

(3) 流量特性:它是指输入压力—定时,输出压力随输出流量g的变化而变化的持性。当流量g发生变化时,输出压力的变化越小越好。 般输出压力越低,它随输出流量的变化波动就越小。

 

NORGREN比例阀的选用

 根据使用要求选定比例阀的类型和调压精度,再根据所需 大输出流量选择其通径。决定阀的气源压力时,应使其大于 高输出压力0.1MPa。减压阀 般安装在分水滤气器之后,油雾器或定值器之前,并注意不要将其进、出口接反;阀不用时应把旋钮放松,以免膜片经常受压变形而影响其性能。

诺 NORGREN比例阀的安装和维护应注意以下事项:

为了操作和维护方便,该阀 般直立安装在水平管道上。安装时应注意使管路中介质的流向与阀休上所示箭头的方向 致。为了防止阀后压力超压,应在离阀出口不少于4M处安装 个安全阀。


减压阀工作原理.减压阀使用方法

在物理化学实验中,经常要用到氧气、氮气、氢气、氩气等气体。这些气体 般都是贮存在专用的高压气体钢瓶中。使用时通过减压阀使气体压力降至实验所需范围,再经过其它控制阀门细调,使气体输入使用系统。 常用的减压阀为氧气减压阀,简称氧气表。


鑫工海优势供应以下英国NORGREN诺冠产品型号

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