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一,、 用    途

性標準環(huán)室孔板、法蘭孔板節(jié)流裝置是無刻度的流量測量裝置,，它與氣動,、電動差壓變送器或雙波紋管差壓變送器配套使用。在冶金,、化工,、石油、電力工業(yè)系統(tǒng)連續(xù)測量介質溫度≤400℃的液體,、氣體,、蒸汽流經(jīng)孔板所產(chǎn)生的壓差，又變送器將該壓差訊號轉換成比例的輸出信號,，再有二次儀表或調節(jié)器,，對被測量流量進行記錄，指示或調節(jié),。

1,、 節(jié)流裝置系列型譜說明：                       

        L  FG—B       —     ———————   Dg50           

                                  16kgf/Cm²  公        Dg65          

   流量儀表                     安                 25 kgf/Cm² 稱        Dg80

         法蘭取壓                裝                40 kgf/Cm²  通       Dg100

              環(huán)室取壓                            64 kgf/Cm²  徑        Dg125

                                 形               100 kgf/Cm² ※       Dg150

A水  平                                                  Dg175

                  式                                     

B垂直向上                                                Dg200

C垂直向下                                                Dg225

                                                          Dg250

                                                          Dg275

                                                          Dg300

                                                          Dg325

                                                          Dg350

                                                          Dg375

                                                                         Dg400

※ 注：公稱通徑根據(jù)工藝條件要求，通徑從Φ50~Φ418MM,。

例：LGBA—16—80表示：標凈環(huán)室孔板節(jié)流裝置,，水平安裝，工作壓力6kgf/Cm²公稱通徑為Dg80