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更新时间:2020-09-29 15:29:45

水力控制阀

水力控制阀】是茸阀流体上海阀门网旗下产品,,我们可为客户提供水力控制阀的作用,水力控制阀规格型号,水力控制阀尺寸结构图,标准,工作原理,水力控制阀安装说明书,欢迎来电咨询、采购。

  水力控制阀是以管路系统上下游压力差为动力,由导阀控制,使隔膜(活塞)液压式差动操作,完全由水力自动调节,从而使主阀阀盘完全开启、完全关闭或处于调节状态。当进入隔膜(活塞)上方控制室内的压力介质被排到大气或下游低压区时,作用在阀盘底部和隔膜下方的压力值大于上方的压力值,依靠管路介质将主阀阀盘推到完全开启的位置:当进入隔膜(活塞)上方控制室内的压力介质不能排到大气或下游低压区时,作用在隔膜(活塞)上方的压力值大于下方的压力值,管路中的介质将主阀阀盘压到完全关闭的位置;当隔膜(活塞)上方控制室内的压力值处于人口压力与出口压力之间时,主阀阀盘处于调节状态,其调节位置取决于附设管路系统中针阀和可调导阀的联合控制作用。可调导阀可以通过下游的出口压力并随它的变化而自动调节其自身阀口的开度,从而改变隔膜(活塞)上方控制室的压力值,控制主阀阀盘的调节位置。

  The Hydraulic Control Valve Is Driven By The Pressure Difference Between The Upstream And Downstream Of The Pipeline System, Controlled By The Pilot Valve, So That The Diaphragm (piston) Hydraulic Differential Operation Is Completely Controlled By Hydraulic Automatic Regulation, So That The Main Valve Disc Is Completely Opened, Completely Closed Or In The Regulating State. When The Pressure Medium Entering The Control Room Above The Diaphragm (piston) Is Discharged To The Atmosphere Or Downstream Low-pressure Area, The Pressure Value Acting On The Bottom Of The Valve Disc And The Diaphragm Is Greater Than The Pressure Value Above. The Main Valve Disc Is Pushed To The Fully Open Position By Relying On The Pipeline Medium. When The Pressure Medium Entering The Control Room Above The Diaphragm (piston) Can Not Be Discharged To The Atmosphere Or Downstream Low-pressure Area, It Acts On The Diaphragm( When The Pressure Value In The Control Room Above The Diaphragm (piston) Is Between The Population Pressure And The Outlet Pressure, The Main Valve Disc Is In The Regulating State, And The Regulating Position Depends On The Joint Control Function Of Needle Valve And Adjustable Pilot Valve In The Attached Pipeline System. The Adjustable Pilot Valve Can Automatically Adjust The Opening Of Its Own Valve Port According To The Downstream Outlet Pressure, Thus Changing The Pressure Value Of The Control Chamber Above The Diaphragm (piston) And Controlling The Regulating Position Of The Main Valve Disc.

水力控制阀知识HYDRAULIC CONTROL VALVE KNOWLEDGE