Liquid calibration device
Gas calibration device
Gas calibration can be available for meter DN15~DN300, it is measured, designed and built with the negative - pressure method, which is the most popular now. Using the Critical Flow Sonic Nozzle as the standard meter, it is identified by the China Institute of metrology, rechecked each five years. The speed of measurement is fast, 30 seconds a point, 5 points to exchange a meter, one meter is finished within 5 minutes. We use automatic rack and automatic drag frame. There are 24 vortex pumps Equipped, once they are opened together, the power can be up to 180kw/h, the largest volume up to 7000m3/h.