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干貨!壓力表量程選擇和壓力表型號選擇的知識要點

發表時間:2021-11-04 18:28【 閱讀量:-查看手機網址
掃一掃!干貨!壓力表量程選擇和壓力表型號選擇的知識要點掃一掃!

  壓力表用來測量壓力大于或小于大氣壓力,并且還可以測量流體壓力。廣泛應用于工業生產和日常生活中。為了保證壓力表測量的準確性,我們不僅要注意壓力表的安裝和日常維護,選擇正確的量程和型號也極為重要。本文介紹了幾種選擇壓力表量程和類型的技術。


  1.范圍選擇


  測量穩定壓力時,壓力表的量程應接近或大于正常壓力測量值的1.5倍;


  測量脈動壓力時,壓力表的量程應接近或大于正常壓力測量值的2倍;


  測量泵出口壓力時,壓力表量程接近泵出口最大壓力值;


  測量高壓時,壓力表量程應大于最大壓力測量值的1.7倍。


  2.類型選擇


  當壓力大于0.4mpa時,可選擇彈簧管壓力表;


  當壓力測量小于0.04mpa時,可選用波紋管壓力表和隔膜壓力表;


  對于粘性、易結晶介質、腐蝕性介質或含有固體顆粒的介質的測量,我們可以使用帶膜片或帶化學密封的壓力表;


  測量蒸汽或高于60℃的介質壓力時,應選用不銹鋼壓力表;


  測量脈動壓力時,可選擇防震壓力表或充液壓力表;在測量含塵氣體時,可設置除塵器。測量含氣液體的壓力時,應設置氣液分離器。本文主要介紹如何從量程和型號上選擇壓力表,也許對你有幫助。

此文關鍵字:壓力表量程 壓力表型號
重生九零小辣椒
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