High quality DN20 natural gas flowmeter DN20 small-diameter natural gas flowmeter

Description :

　　The main technical indicators of this product have reached the advanced level of similar foreign products. Strong anti-interference ability, high accuracy, no mechanical rotating parts, not easy to corrode, compact structure, high reliability, good stability, and low maintenance.

　　1、 Technical parameters

　　Nominal diameter: DN15-DN200 (diameters larger than DN1600 can also be used)

　　Tested media: natural gas, air, nitrogen, biogas, etc

　　Basic error: ± 1.0%, ± 1.5%,

　　Work pressure: ≤ 6.3 MPa

　　Temperature of the tested medium: ＜ 80 ℃

　　Requirements for straight pipe section: upstream 0-5D, downstream 0-3D

　　Power supply: lithium battery and 24V DC

　　Display: 8-bit LCD displays instantaneous flow and cumulative flow

　　Output signal: (1) 4-20mA DC flow signal (2) HART protocol compliant output signal

　　Explosion proof performance: intrinsic safety type IbIICT5

　　Protection performance: IP65

　　2、 Characteristics

　　1. The circuit adopts surface mount technology, compact structure, and high reliability

　　2. Adopting low-power high-tech, it can work with both internal and external power sources, and has low overall power consumption;

　　3. Adopting high-performance microprocessors and modern filtering technology, the software has powerful functions and superior performance;

　　4. No mechanical movable parts, good stability, not easily corroded, no need for mechanical maintenance;

　　5. The requirements for the front and rear straight pipe sections are low, with a front length of ≥ 3DN and a rear length of ≥ 1DN;

　　6. Adopting a high contrast LCD display, it can display cumulative flow and instantaneous flow, with convenient and clear readings;

　　7. The instrument has a password setting function to prevent illegal settings.

　　3. Installation

　　1. Before installation, the pipeline must be blown clean to prevent residual iron filings from affecting the normal operation of the flowmeter.

　　2. Before installation, if the turbine can rotate flexibly without irregular noise when blown by a small airflow, and the counting rotation is normal without any interruption or jamming, then the flowmeter can be installed and used.

　　3. During installation, a sealing gasket should be added between the flange and the pipeline flange.

　　4. A filter should be installed in front of the gas flowmeter, and an oil filter should be installed in places with dirty gas. Before placing an order, users can also place an order with our company. It is strictly prohibited to directly connect the filter and flowmeter.

　　5. Stop valves should be added before and after installation.

　　6. There should be no protrusions connected to the flange joint inside the pipeline.

　　7. When installing natural gas flow meters, it is strictly prohibited to directly weld at the inlet and outlet flanges to avoid burning out the internal parts of the flow meter.

　　8. Installed in a location that is easy to maintain, free from strong electromagnetic interference, mechanical vibration, and thermal radiation effects.

　　9. Not suitable for use in situations where flow is frequently interrupted and there are strong pulsations or pressure fluctuations.

　　10. When installing outdoors, there should be a cover on the upper part to prevent rainwater from entering and direct sunlight from affecting the service life of the flowmeter.

　　11. It can be installed horizontally or vertically, and the direction of fluid flow should be consistent with the direction marked on the shell. There should be a straight pipe section of not less than 10Dn upstream of the flowmeter, and a straight pipe section of not less than 5Dn behind the meter.

AfterSalesService :

• High quality DN20 natural gas flowmeter