Exchange of experience in using various flow meters, in a relay format
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1. For mass flow meters, those from Emerson and E+H perform well – they are durable with a low failure rate. I’ve used a few models from Yokogawa as well, and they were acceptable. Among domestic mass flow meters, those from Xi’an Dongfeng have a higher failure rate; I haven’t used any other domestic brands.2. For electromagnetic flow meters, those from Coriolis are good. ABB’s models from ten years ago worked fine, but in recent years they have had many issues and poor after-sales support.
3. As for vortex flow meters, those from Emerson and E+H are excellent. I used a Yokogawa model to measure steam at 1.0 MPa; it started leaking after more than a year of use. This might have been an individual case, so I didn’t dare use it again afterward.
4. For measuring liquids with ultrasonic flow meters, those from Siemens and E+H work well. GE’s models seem a bit clunky and don’t perform as well – this could be related to installation. According to the manufacturer’s after-sales service, Emerson, GE, and Coriolis are suitable for measuring natural gas. That’s all for now; I hope everyone can offer their advice. I hope we can continue to work together and share any issues we encounter promptly
These several foreign brands offer good flowmeters, as do the domestic ones…
Jiangsu Weiyi Electronics’ vibration-resistant vortex flow meters can be considered part of this category.
1. For metal rotor flowmeters, it is recommended to choose those produced by Chengde Coronie (a cooperative factory of Cologne). Both quality and lifespan are good. 2. The orifice plate was used in Beijing... I can’t remember; it seemed okay. For use with transmitters, Yokogawa EJA is the reliable choice. 3. For wedge flow meters, we used Chengde Feishibote’s products; they have been in use for 5 years now and are still performing well. 4. For mechanical rotary water meters, choose Ningbo Water Meter Factory; avoid other options – they’re simply too poor in quality. Additional comment from the original poster: 5. The electromagnetic flowmeters from Coriolis are indeed good; E+H and Yokogawa are also excellent. These three brands are truly top-notch when it comes to electromagnetic flowmeters. 6. For mass flow measurement, HighAccu is the preferred choice; it has been in use under extremely harsh conditions for 15 years, and it remained robust even when it retired. In addition to High Precision, I have also used E+H and Kolon mass flow meters, which are also quite good and accurate.
Those from abroad are more effective, but they’re very expensive；
These brands are widely used in the chemical industry, with relatively low failure rates.
What causes occasional fluctuations in the Cologne electromagnetic flowmeter? There are issues with air traffic control fluctuations, and sometimes it just starts dancing on its own!
They are all from abroad; let’s talk about domestic ones. Transmitters: Shanghai Wilte, Chongqing Weian. Electromagnetic types: Shanghai Kent. Turbines: Tianjin Xuner. Rotors: Chengde Crony. Vortex flow meters: Yokogawa does a good job with these, while domestic ones are of average quality. For thermal mass flow meters, are there any recommendations?
Get one from Emerson too; the serial number is too new. If you have any issues related to flow measurement, feel free to contact me. The products mentioned in the import section are those that are commonly used in bidding processes as well as in actual applications: 1. Coriolis mass flow meters – Emerson E+H, Krohne; 2. Electromagnetic flow meters – Krohne, Yokogawa, E+H; 3. Vortex flow meters – Emerson, E+H, Yokogawa; 4. Ultrasonic flow meters – External clamp type, FLEM (sold in collaboration with Emerson), GE, Barna, Siemens; 5. Liquid level sensors – Krohne, E+H, Siemens; 6. Ultrasonic flow meters for natural gas measurement – Daniel Sick, Krohne; 7. Metal rotor flow meters – Krohne, Yokogawa
Let’s choose the most expensive ones – is that interesting? Let’s go for something with better value for money.
What kind of faults do the mass flow meters from Xi’an Dongfeng have? I’m planning to buy some to use