15-25 double-row twenty-meter series pressure-resistant

The Series-Type Watermeter Calibrating Device comes out of the testing-type and production-type ones. But it has a higher work efficiency. By which the watermeters may be calibrated either by volumetic method or standard meter. Meanwhile, due to a specific length of tube has been used in the connecting part between meters the test precision of the calibration can be greatly improved. A number of watermeters from three to twenty in series in single or double row can simultaneously be tested on this type of device. So it is an ideal equipment for watermeter manufacturers to increase its capacity in calibration of watermeters.