How can I ensure that my turbine flowmeter is measuring accurately?

The following is an explanation of turbine flowmeter measurements:

• 一、Requirements for piping: the upstream and downstream piping diameter of the installation point of the flowmeter is the same as the inner diameter of the flowmeter.
• 二、Requirements for the bypass pipe: In order to ensure that the flowmeter maintenance does not affect the normal use of the flowmeter before and after the pipeline should be installed on the cut-off valve (shut-off valve), and at the same time should be set up bypass pipe. Flow control valve to be installed in the flowmeter downstream, the flowmeter used upstream of the shut-off valve installed must be fully open, to avoid the upstream part of the fluid produced by the phenomenon of instability.
• 三、Requirements for straight pipe section: the flowmeter must be installed horizontally in the pipeline, the installation of the flowmeter axis should be concentric with the axis of the pipeline, the flow direction should be the same. Flowmeter upstream pipeline length should not be less than 2DN equal diameter straight pipe section, if the installation place allows the proposed upstream straight pipe section of 20DN, downstream for 5DN.
• 四、Requirements for the external environment: the flowmeter is installed indoors, and when it must be installed outdoors, it must be protected against sun, rain and lightning.
• 五、Installation place: The flowmeter should be installed in a place where it is easy to be maintained and there is no strong electromagnetic interference and no heat radiation.
• 六、Requirements for the installation of welding: before installing the flowmeter should be strictly remove the welding slag and other dirt in the pipeline, with an equal diameter of the pipeline (or bypass pipe) instead of the flowmeter to blow the pipeline. To ensure that the flowmeter is not damaged in the process of use.

Here is a breakdown of the installation by specific category:

• 1、Clamping type: The two sealed ends of the sensor are held by the grooves on the pipe, which is easy to install, but not applicable to higher pressures and larger diameters.
• 2、Flange connection type: the sensor is connected to the pipeline in the form of a flange. The flange of the stereotyped product is according to the national standard.
• 3、Threaded connection type: The sensor is threaded to the pipe and can withstand high pressure, but is not suitable for larger diameters.