容积式流量计,又称定排量流量计,简称PD流量计,在流量仪表中是精度最高的一类。它利用机械测量元件把流体连续不断地分割成单个已知的体积部分,根据测量室逐次重复地充满和排放该体积部分流体的次数来测量流体体积总量。
校准器是容积式流量计上的重要部件。
介绍了容积式流量计的特点,探讨了选型的主要因素和应用的注意事项。
The characteristics of positive displacement flow meter are introduced, and the main factors for lectotype and the matters needing attention in the application are discussed.
可行时,液体物料应该用经过正确校验的立管来检测储罐或用孔板流量计、转子流量计或容积式流量计来测量;
Wherever practical the measurement of liquid streams shall be by standing gauges of properly calibrated tanks or by orifice meters, rotameters or displacement meters.
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