What should you pay attention to when purchasing the orifice flow meter?

The HD-LBGH orifice flow meter is designed, manufactured and verified according to the national standard. The standard orifice plate does not require real-flow calibration, high precision, simple structure and low manufacturing cost, but the pressure loss is the largest among all standard throttling devices. When the pressure loss is small, the standard orifice plate is widely used in petroleum, chemical, metallurgy, electric power and other industries.

What should you pay attention to when purchasing the orifice flow meter?

In the future work, the orifice flow  meter greatly reduces the situation of inaccurate or unusable measurement caused by mistakes in the selection, and should pay attention to the following points.

First, the company should have high measurement accuracy, and with the appearance of wireless meter reading function, to prevent the doubts of underreporting and missing notes, and to grasp the change of practice pressure, temperature and flow of each user at any time, and improve economic benefits. .

Second, the use is not the same, the selection of the appearance level should also be different. The appearance of the primary gas producing equipment and the primary steam unit should be selected with a flow meter with active density compensation, especially for the flow settlement of trade settlement, and the accuracy should be determined regularly. The external accounting such as workshops, canteens and other secondary energy-using units can use the fixed-valued flow appearance to reduce costs.

The same can reach the need for dynamic statistical balance.

Third, the device DN 200mm diameter below the flow meter, the use of steam temperature below 300 °C should be installed vortex flow meter; DN200mm above the diameter of the orifice flow meter above 300 °C should be equipped with differential pressure flow meter. Selecting a nozzle is conducive to energy saving.

Fourth, the selection of external suppliers depends on whether there is a verification device, there is no factory to verify the equipment, can not ensure the accuracy of the appearance, reliability

Five. To understand the nature of steam, it is full steam and superheated steam. Under the condition of unstable pressure and temperature, in order to ensure the accuracy of measurement, the temperature and pressure should be added to the external equipment for active density compensation.

Sixth, the total gas production of power generation boilers should be equipped with differential pressure flow meter

Seventh, the size of the external caliber should be selected according to the size of the flow, and the external caliber should not be selected according to the size of the pipe. Since the steam pipe takes into account the pipe resistance as much as possible, the pipe diameter is generally selected; in order to prevent the small flow meter from failing, the appropriate outer diameter is selected as much as possible. The guidelines are small and big.

In general, in the purchase of orifice flow meters, do not only consider the quotation, according to the actual situation of the unit, select the best; should be close to the local guidelines, because the orifice flow meter is a dynamic measurement, it will inevitably have some doubts And the problem, in order to ensure the normal operation of the metering, and eliminate the problem at any time, the purchase of the orifice flow meter can prevent a lot of troubles.

The above is a brief introduction to the need to pay attention to the purchase of orifice flow meters, I hope to be helpful to everyone. For more information, please visit the company's official website https://www.china-transmitters.com

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