DN40 steam flowmeter | Requirements for straight pipe sections before and after installation of various flow meters

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1. Selection specifications of steam flow meter

The selection specifications of steam flow meter should consider the following points: diameter: DN25: suitable for liquid flow range of 1-10m3/h to 60m3/h, gas flow range of 25m3/h to 60m3/h. DN32 and DN40: The flow range varies depending on the type of liquid and gas. DN50 to DN200: The flow range gradually expands to accommodate a wider range of liquid and gas flow rates. DN300 and above: It is recommended to use a plug-in flowmeter. Temperature and pressure compensation function: N: No compensation function. Y: There is a compensation function. Output model: F1: Two wire system 420mA. F2: Three wire system 420mA. F3: RS485 communication interface. Type of tested medium: J1: liquid. J2: Gas. J3: Steam. Connection method: L1: flange clamp type. L2: Faqingju permeable orchid connected sparrow spine. Function options: Accuracy: E

1, E2. Temperature: T

1. T

2. T3. Pressure rating: P1 to P3. Power supply methods: D1 and D2. Materials: B1 and B2. When selecting, the above specifications should be comprehensively considered based on specific measurement requirements, working environment, budget, and other factors to ensure that the selected steam flowmeter can meet actual usage requirements.

2. Selection of saturated steam flowmeter

Model and marking instructions: LUGB □□□□□□ Stress type vortex flow sensor - ② ③ ④ - ⑤ ⑥ Serial number connection method: 1 Flange connection type 2 Flange card type tested medium: 1 Liquid 2 Gas (including steam) sensor nominal diameter: DN010-10 mm (non-standard) DN012-12.5 mm (non-standard) DN015-15 mm (non-standard) DN020-20 mm (non-standard) DN02-25 mm DN03-32 mm (non-standard) DN04–40 mmDN05–50 mmDN0

6–65 mmDN08–80 mmDN10–100 mmDN12–125 mmDN15–150 mmDN20–200 mmDN25–250 mmDN30–300 mmDN35–350 mmDN40–400 mmDN45–450 mmDN50–500 mm Unmarked pulse output standard flow range K pulse output extended flow range B explosion-proof M current output DC4-20mA local display 24V power supply condition various parameters XM local display 24V power supply three wire current output BM explosion-proof, current output DC4-20mA Determination and installation design of instrument caliber: 5 Instruments can be installed horizontally, vertically, or obliquely on pipelines. When measuring gases, instruments can be installed in vertical pipelines with no restrictions on gas flow direction. But if the pipeline contains a small amount of liquid, in order to prevent liquid from entering the instrument measuring tube, the airflow should flow from bottom to top. When measuring liquid, in order to ensure that the tube is filled with liquid carefully, when installing instruments in vertical or inclined pipelines, the direction of liquid flow should be from bottom to top. If the pipeline contains a small amount of gas, in order to prevent gas from entering the instrument measuring tube, the instrument should be installed at a lower part of the pipeline. When measuring high and low temperature media, attention should be paid to insulation measures. The high temperature inside the converter (inside the header housing) should generally not exceed 70 ℃ during cleaning; Low temperature can easily cause condensation inside the converter, reducing the insulation impedance of the printed circuit board and affecting the normal operation of the instrument. The straight pipe section for measuring liquids must meet the requirements, and the straight pipe section f

DN40 steam flowmeter | Requirements for straight pipe sections before and after installation of various flow meters

1. Selection specifications of steam flow meter

2. Selection of saturated steam flowmeter

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