Characteristics and installation requirements of DN200 sewage flowmeter

DN200 sewage flow meter has a simple structure, is solid and reliable, and has a long service life. There are no moving parts and resistance parts in the measuring tube, no pressure loss, no blockage, reliable measurement, strong anti-interference ability, small size, light weight, easy installation, low maintenance, wide measuring range, and the measurement is not affected by fluid temperature, density and pressure. , viscosity, conductivity and other changes, it can be renovated and installed by drilling holes in old pipelines. The construction and installation are simple and the engineering volume is small. The cost and installation cost are lower than ordinary electromagnetic flowmeters, and they are especially suitable for measuring flow in large and medium-diameter pipelines. Adopting advanced processing technology, solid-state packaging and long life, the instrument has good measurement accuracy and stability.

Installation requirements for DN200 sewage flow meter: 1. The environment should be chosen as far away from equipment with strong electromagnetic fields as possible, such as large motors, large transformers, large frequency converters, etc. The installation site should not have strong vibrations, the pipelines should be firmly fixed, and the ambient temperature should not change much (to prevent solid-liquid phase changes). The installation environment should be convenient for installation and maintenance. 2. Location selection The installation location must ensure that the pipeline is always filled with the liquid to be measured. Choose a place with small liquid flow pulses and stay away from local resistance parts such as pumps, valves, and elbows. When measuring two-phase (solid, liquid and gas, liquid) liquids, you should choose a place that is not likely to cause phase separation. The inner diameter or circumference of the pipe to be measured is easy to measure, and the ovality should be small. 3. The length of the straight pipe section on the upstream side of the pipeline where the straight pipe length sensor is installed should be greater than or equal to 10D, and the length of the straight pipe section on the downstream side should not be less than 5D (D is the diameter of the pipe being measured). 4. Flow control valve and regulating valve The flow control valve should be installed in the measured pipe on the upstream side of the sensor, and the flow regulating valve should be installed on the downstream side of the sensor. When the flow rate is high, the flow control valve should usually be in a fully open state.