festo减压阀@festo减压阀原理

减压阀          LR-M1-G1/8-04
                              减压阀          LR-M1-G1/8-04G
                              减压阀          LR-M1-G1/8-04I
                              减压阀          LR-M1-G1/8-04K
                              减压阀          LR-M1-G1/8-04GI
                              减压阀          LR-M1-G1/8-04GK
                              减压阀          LR-M1-G1/8-04GIK
                              减压阀          LR-M1-G1/8-07
                              减压阀          LR-M1-G1/8-07G
                              减压阀          LR-M1-G1/8-07I
                              减压阀          LR-M1-G1/8-07K
                              减压阀          LR-M1-G1/8-07GI
                              减压阀          LR-M1-G1/8-07GK
                              减压阀          LR-M1-G1/8-07IK
                              减压阀          LR-M1-G1/8-07GIK
                              减压阀          LR-M1-G1/8-10
                              减压阀          LR-M1-G1/8-10G
                              减压阀          LR-M1-G1/8-10I
                              减压阀          LR-M1-G1/8-10K
                              减压阀          LR-M1-G1/8-10GI
                              减压阀          LR-M1-G1/8-10GK
                              减压阀          LR-M1-G1/8-10IK
                              减压阀          LR-M1-G1/8-10GIK
                              减压阀          LR-M1-G1/4-04
                              减压阀          LR-M1-G1/4-04G
                              减压阀          LR-M1-G1/4-04I
                              减压阀          LR-M1-G1/4-04K
                              减压阀          LR-M1-G1/4-04GI
                              减压阀          LR-M1-G1/4-04GK
                              减压阀          LR-M1-G1/4-04GIK
                              减压阀          LR-M1-G1/4-07
                              减压阀          LR-M1-G1/4-07G
                              减压阀          LR-M1-G1/4-07I
                              减压阀          LR-M1-G1/4-07K
                              减压阀          LR-M1-G1/4-07GI
                              减压阀          LR-M1-G1/4-07GK
                              减压阀          LR-M1-G1/4-07IK
                              减压阀          LR-M1-G1/4-07GIK
                              减压阀          LR-M1-G1/4-10
                              减压阀          LR-M1-G1/4-10G
                              减压阀          LR-M1-G1/4-10I
                              减压阀          LR-M1-G1/4-10K
                              减压阀          LR-M1-G1/4-10GI
                              减压阀          LR-M1-G1/4-10GIK
                              减压阀          LR-M2-G1/4-04
                              减压阀          LR-M2-G1/4-04G
                              减压阀          LR-M2-G1/4-04I
                              减压阀          LR-M2-G1/4-04K
                              减压阀          LR-M2-G1/4-04GI
                              减压阀          LR-M2-G1/4-04GK
                              减压阀          LR-M2-G1/4-04GIK
                              减压阀          LR-M2-G1/4-07
                              减压阀          LR-M2-G1/4-07G
                              减压阀          LR-M2-G1/4-07I
                              减压阀          LR-M2-G1/4-07GI
                              减压阀          LR-M2-G1/4-07GK
                              减压阀          LR-M2-G1/4-07GIK
                              减压阀          LR-M2-G1/4-10
                              减压阀          LR-M2-G1/4-10G
                              减压阀          LR-M2-G1/4-10I
                              减压阀          LR-M2-G1/4-10K
                              减压阀          LR-M2-G1/4-10GI
                              减压阀          LR-M2-G1/4-10GK
                              减压阀          LR-M2-G1/4-10GIK
                              减压阀          LR-M2-G1/4-16
                              减压阀          LR-M2-G1/4-16G
                              减压阀          LR-M2-G1/4-16I
                              减压阀          LR-M2-G1/4-16K
                              减压阀          LR-M2-G1/4-16GI
                              减压阀          LR-M2-G1/4-16GK
                              减压阀          LR-M2-G1/4-16GIK
                              减压阀          LR-M2-G3/8-04
                              减压阀          LR-M2-G3/8-04G
                              减压阀          LR-M2-G3/8-04GI
                              减压阀          LR-M2-G3/8-04GK
                              减压阀          LR-M2-G3/8-07
                              减压阀          LR-M2-G3/8-07G
                              减压阀          LR-M2-G3/8-07I
                              减压阀          LR-M2-G3/8-07GI
                              减压阀          LR-M2-G3/8-07GK
                              减压阀          LR-M2-G3/8-07GIK
                              减压阀          LR-M2-G3/8-10
                              减压阀          LR-M2-G3/8-10G
                              减压阀          LR-M2-G3/8-10I
                              减压阀          LR-M2-G3/8-10GI
                              减压阀          LR-M2-G3/8-10GK
                              减压阀          LR-M2-G3/8-10GIK
                              减压阀          LR-M2-G3/8-16
                              减压阀          LR-M2-G3/8-16G
                              减压阀          LR-M2-G3/8-16K
                              减压阀          LR-M2-G3/8-16GI
                              减压阀          LR-M2-G3/8-16GK
                              减压阀          LR-M2-G1/2-04
                              减压阀          LR-M2-G1/2-04G
                              减压阀          LR-M2-G1/2-04GI
                              减压阀          LR-M2-G1/2-04GK
                              减压阀          LR-M2-G1/2-04GIK
                              减压阀          LR-M2-G1/2-07
                              减压阀          LR-M2-G1/2-07G
                              减压阀          LR-M2-G1/2-07GI
                              减压阀          LR-M2-G1/2-07GK
                              减压阀          LR-M2-G1/2-07GIK
                              减压阀          LR-M2-G1/2-10
                              减压阀          LR-M2-G1/2-10G
                              减压阀          LR-M2-G1/2-10I
                              减压阀          LR-M2-G1/2-10K
                              减压阀          LR-M2-G1/2-10GI
                              减压阀          LR-M2-G1/2-10GK
                              减压阀          LR-M2-G1/2-10GIK
                              减压阀          LR-M2-G1/2-16
                              减压阀          LR-M2-G1/2-16G
                              减压阀          LR-M2-G1/2-16I
                              减压阀          LR-M2-G1/2-16K

festo减压阀@festo减压阀原理

众所皆知德国FESTO费斯托减压阀是一种自动降低管路工作压力的专门装置，它可将阀前管路较高的水压减少至阀后管路所需的水平。减压阀广泛用于高层建筑、城市给水管网水压过高的区域、矿井及其他场合，以保证给水系统中各用水点获得适当的服务水压和流量。鉴于水的漏失率和浪费程度几乎同给水系统的水压大小成正比，因此减压阀具有改善系统运行工况和潜在节水作用，YK43XF气体减压阀据统计其节水效果约为30％。减压阀的构造类型很多，以往常见的有薄膜式、内弹簧活塞式等。
FESTO减压阀的基本作用原理：
是靠阀内流道对水流的局部阻力降低水压，水压降的范围由连接阀瓣的薄膜或活塞两侧的进出口水压差自动调节。2007年以来又出现一些新型减压阀，YK43F不锈钢气体减压阀如定比式减压阀。定比减压原理是利用阀体中浮动活塞的水压比控制，进出口端减压比与进出口侧活塞面积比成反比。这种减压阀工作平稳无振动；阀体内无弹簧，故无弹簧锈蚀、金属疲劳失效之虑；密封性能良好不渗漏，因而既减动压（水流动时）又减静压（流量为0时）；特别是在减压的同时不影响水流量。定值器处于非工作状态时，由气源输入的压缩空气经过滤器1过滤后进入A室和正室。主阀芯19在弹簧20和气源压力作用下压在阀座上，使A室与B室断开。进入A室的气流经由阀口（又称为活门）12至F室，再通过恒节流孔13降压后，分别进入G室和D室。由于这时尚未对膜片8加力，挡板5与喷嘴4之间的间距较大，气体从喷嘴4流出时的气流阻力较小，G室及D室的气压较低，膜片3及15保持原始位置。进入只室的微量气体主要经B室通过阀口2从排气口排出；另有一部分从输出口排空。此时输出口无气流输出，由喷嘴流出而排空微量气体是维持喷嘴挡板装置工作所必须的，因其为无功耗气量，所以希望其耗量越小越好。　　
费斯托FESTO减压阀基本性能　　
（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 减压阀到规定的精度。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。一般输出压力越低，它随输出流量的变化波动就越小。

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