turbine flow meter

1、 Overview

turbine flow meterHas precision, repeatability, zero drift free, range ratio, and other characteristics. Equipped with high-quality bearings and designed flow deflectors, it greatly reduces wear, is insensitive to peak values, and can provide reliable measurement variables even under harsh conditions. The output signal of the diesel flowmeter is pulse, which is easy to digitize. Low pressure loss, blades can resist corrosion, and can measure thin and corrosive media.

2、 Product Features

1. Accuracy, generally up to ± 1% R, ± 0.5% R, and accuracy type up to ± 0.2% R;

2. Repeatability, short-term repeatability can reach 0.05%~0.2%, which is precisely due to its good repeatability that it is suitable for flow meters used in trade settlement;

3. On site display, instantaneous flow and cumulative flow

4. Output pulse frequency signal, 4-20mA, 485 communication

5. Able to obtain high frequency signals with strong signal resolution;

6. Wide range, with a medium to large caliber of up to 1:20 and a small caliber of 1:10;

7. Compact and lightweight structure, easy installation and maintenance, and high circulation capacity;

8. Suitable for pressure measurement, there is no need to open holes on the instrument body, making it easy to make pressure gauges;

9. There are various types of sensors, which can be designed according to user needs, such as low-temperature, bidirectional, downhole, mixed sand, etc;

10. Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.

3、 Specifications

Caliber Flow Comparison Table

4、 Outline dimensions and installation diagram

turbine flow meterTypical installation pipeline system diagram (see Figure 1)

Precautions for pipeline installation

1. The sensor should be installed in a location that is easy to maintain, with no vibration, strong electromagnetic interference, or thermal radiation in the pipeline.

2. The installation of sensors requires that the pipeline should not have any visible tilt (generally within 5 °), and the vertical deviation of the pipeline for vertical installation of sensors should also be less than 5 °. In places where the flow cannot be stopped, a bypass pipe and a shut-off valve (see Figure 1) should be installed, and the measurement should ensure that the bypass pipe is leak free.

3. Connect a short pipe to replace the sensor at the location where the sensor is installed in the newly laid pipeline. After the "line sweeping" work is completed and the pipeline is confirmed to be clean, the sensor can be officially connected.

If the fluid contains impurities, a filter should be installed on the upstream side of the sensor, and the pipeline should be regularly cleaned to discharge sediment impurities; If the measured liquid contains gas, a gas eliminator should be installed on the upstream side of the sensor. The discharge and exhaust ports of filters and air purifiers should be connected to a safe location.

If the sensor is installed at the low point of the pipeline, in order to prevent impurities from settling and accumulating in the fluid, a discharge valve should be installed in the pipeline behind it to regularly discharge the settled impurities.

When installing sensors outdoors, measures should be taken to avoid direct sunlight and rain.