Rexroth力士樂雙聯定量葉片泵A10VSO45DFR1/31R-PPA12德國柱塞泵
一臺品質優良的液相色譜系統應從以下幾個方面考慮:一.主要技術指標優異首先是如何看指標。液相色譜儀的指標很多,有泵的、檢測器的、色譜柱等等。我們認為要看主要技術指標,根據標準,儀器的主要指標有噪音,漂移,小檢測濃度,定性定量重復性等。這些指標都要放在系統,回路里去看,去比較。就是需要把各單元裝置都要聯接好,如接好色譜柱,進樣閥,并且要通上流動相。因為您在分析中也都是聯接好以后才可以進行分析的,而不是單單用個檢測器或是泵的。
一般來講這一點很重要,尤其是對于OEM產品。一旦將產品送到客戶手中那么客戶用來校準的花銷是相當大的。如果產品具有良好的互換性,那么即使改變所用的變送器也不會影響整個系統的效果。變送器的封裝變送器的封裝,往往容易忽略是它的機架,然而這一點在以后使用中會逐漸暴露出其缺點。在選購變送器時一定要考慮到將來變送器的工作環境,濕度如何,怎樣安裝變送器,會不會有強烈的撞擊或振動等。變送器超時工作后需要保持穩定度大部分變送器在經過超額工作后會產生漂移,因此很有必要在購買前了解變送器的穩定性,這種預先的工作能減少將來使用中會出現的種種麻煩。
St是雷諾數的函數,St=f。當雷諾數Re在12~15范圍內,St值約為12,在測量中,要盡量滿足流體的雷諾數在12~15,旋渦頻率f=.12v/d。由此可知,通過測量旋渦頻率就可以計算出流過旋渦發生體的流體平均速度v,再由式q=vA可以求出流量q,其中,A為流體流過旋渦發生體的截面積。渦街流量計便是依據卡門旋渦原理進行封閉管道流體流量測量的新型流量計。因其具有良好的介質適應能力,無需溫度壓力補償即可直接測量蒸汽、空氣、氣體、水、液體的工況體積流量,配備溫度、壓力傳感器可測量標況體積流量和質量流量等優點。
一般說來由于工業生產中工質的溫度常不能保持恒定,故多采用頻差法及時差法。只有在管徑很大時才采用直接時差法。對換能器安裝方法的選擇原則一般是:當流體沿管軸平行流動時,選用Z法;當流動方向與管鈾不平行或管路安裝地點使換能器安裝間隔受到限制時,采用V法或X法。當流場分布不均勻而表前直管段又較短時,也可采用多聲道(雙聲道或四聲道)來克服流速擾動帶來的流量測量誤差。多普勒法適于測量兩相流,可避免常規儀表由懸浮粒或氣泡造成的堵塞、磨損、附著而不能運行的弊病,因而得以迅速發展。
A10VSO100:
A10VSO100DFR/31L-PSC62K07,A10VSO100DFR1/31R-PUC12N00
A10VSO10:
A10VSO10DFR1/52R-PKC64N00,A10VSO10DFR1/52R-PPA14N00,A10VSO10DR/52L-PKC64N00,A10VSO10DR/52R-PKC64N00,A10VSO10DR/52R-PPA14N00
A10VSO18:
A10VSO18DFR/31R-PKC62N00,A10VSO18DFR/31R-PPA12K01,A10VSO18DFR/31R-PPA12N00,A10VSO18DFR1/31R-PPA12K01,A10VSO18DFR1/31R-PPA12N00
A10VSO18DFR1/31R-PUC62N00,A10VSO18DR/31L-PUC12N00,A10VSO18DR/31R-PPA12N00,A10VSO18DR/31R-PSC12N00,A10VSO18DRG/31R-PPA12N00
A10VSO28:
A10VSO28DFLR/31L-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00
A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PSA12N00
A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-VPA12N00,A10VSO28DFR1/31R-PPA12L30,A10VSO28DFR1/31R-PPA12N00
A10VSO28DFR1/31R-PSC12N00,A10VSO28DFR1/31R-PSC62N00,A10VSO28DG/31R-PPA12N00,A10VSO28DR/31L-PPA12N00,A10VSO28DR/31R-PPA12N00
A10VSO28DRG/31R-PPA12K25,A10VSO28DRG/31R-PPA12N00,A10VSO28ED73/52L-VSC11N00P
A10VSO45:
A10VSO45DFLR/31R-PPA12K57,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00
A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFR/31R-PPA12N00,A10VSO45DFR/31R-PPA12O30
A10VSO45DFR/31R-PSC62N00,A10VSO45DFR/52R-PSC12N00,A10VSO45DFR1/31R-PPA12G60,A10VSO45DFR1/31R-PPA12K54,A10VSO45DFR1/31R-PPA12K57
A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/52L-PSC11N00,A10VSO45DFR1/52R-PUC11N00
A10VSO45DR/31R-PPA12K01,A10VSO45DR/31R-PPA12K25,A10VSO45DR/31R-PPA12K57,A10VSO45DR/31R-PPA12N00,A10VSO45DR/31R-PPA12O90
A10VSO45DRG/31R-PPA12N00,A10VSO45ED72/52R-VSC11N00T
A10VSO60:
A10VSO60DFR/52R-PCD11N00
A10VSO71:
A10VSO71DFLR/31R-PPA12N00,A10VSO71DFLR/31R-PPA12N00,A10VSO71DFR/31L-PSC62N00,A10VSO71DFR1/31R-PSC12N00,A10VSO71DRG/31L-PSC12N00
AA10VSO100:
AA10VSO100DFLR/31R-PPA12G30,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00
AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFR/31R-PPA12K01,AA10VSO100DFR/31R-PPA12K25,
AA10VSO100DFR/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12K25,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,
AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-VPA12N00,AA10VSO100DRG/31R-PPA12N00
AA10VSO140:
AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,
AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PSB12N00,AA10VSO140DFR/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-VPB12N00,AA10VSO140DR/31L-PPB12N00,AA10VSO140DR/31R-PPB12K02,AA10VSO140DR/31R-PPB12N00,AA10VSO140DRG/31R-PPB12N00
AA10VSO71:
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFR/31R-PPA12K01,AA10VSO71DFR/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12K01,
AA10VSO71DFR1/31R-PPA12L30,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12X31,
AA10VSO71DR/31R-PPA12N00,AA10VSO71DRG/31R-PPA12K01,AA10VSO71DRG/31R-PPA12N00,AA10VSO71FHD/31R-PPA12K01