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阀门选型-阀门选定和管道设想时,应注重事变
栏目:手艺前沿 宣布时候:2019-08-23

阀门选定和管道设想时,应注重事变以下:

  Selection of valves and design of pipes shall comply with the following principals:

  1、按照阀门利用场合、用处且领会有关律例、规格、规范、方针、许用承认后便可选用合适各类请求的阀门;

  In terms of locations and purposes of valves, the suitable valves can be selected after knowing relevant specification, size,

  standards,principal and permission;

  2、肯定阀门的任务前提、合用介质、任务压力、介质温度

  Need to specify the working condition, applicable medium, working pressure and working temperature of media;

  3、肯定与管道相婚配的公称通径DN  (mm)

  Need to specify the nominal diameter to match the pipeline: DN(mm)

  4、肯定与管道相毗连体例法兰式、内(外)罗纹式、焊接式、对夹式、卡箍式、卡槽式、卡套式等

  Need to specify the connecting type of the pipeline, including flanged type, inside&outside screwed type, welded type, wafer

  type, clip type, groove

  type,and union type etc.;

  5、肯定阀门的操纵体例:手动、蜗轮动、气动、电动、液动、电磁动、电液动

  Need to specify the operating type of the valve, including lever, worm gear, pneumatic actuator, hydraulic actuator,

  electromagnetic actuator and electromagnetic-hydraulic actuator etc.;

  6、肯定阀门的范例闸阀、停止阀、节省阀、球阀蝶阀、隔阂阀、旋塞阀、止回阀、宁静阀、减压阀、疏水阀、柱塞阀、水力节制阀及其余特种阀

  Need to specify the model of the valve, including gate valve, globe valve, throttle valve, ball valve, butterfly valve, diaphragm

  valve, plug valve, check valve, safety valve, reducing valve, steam trap and plunger valve etc.;

  7、肯定阀门的利用情势开关型、调理型、宁静型等

  Need to specify the working type of valve, including on-off type, adjusting type, safety type etc.;

  8、肯定阀门壳体及内件的材料灰铁、球铁、碳钢、合金钢、不锈钢、蒙乃尔合金、铜合金、铝合金、塑料等

  Need to specify material of body and trim, including grey iron, ductile iron, carbon steel, alloy steel, stainless steel, monel alloy,copper alloy, aluminum alloy, plastic etc.;

  9、肯定阀门的密封机能请求、密封品级或密封泄漏量

  Need to specify the requirements on

  10、肯定阀门的防护涂层请求、包装请求、运输请求

  seal performance and grade or leakage;

  Need to specify the requirements on coating, packing and transportation;

  11、特别须要的阀门还应肯定布局长度、阀门高度、形状尺寸、流阻、排放才能、流量特征、防护品级、防爆机能等参数

  Need to specify face to face dimension, height, outline sizes, flow resistance, drainage ability, flow characteristic, protected

  grade, anti-explosive performances etc. for special valves;

  12、肯定阀门的装置地位及姿式

  Need to specify the installed position and direction for the valve.