Can orifice plate differential pressure flow meters be completely replaced by other flow meters?
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Can orifice plate differential pressure flow meters be completely replaced by other flow meters? When I was working at a design institute in China, orifice plates combined with differential pressure transmitters were often used to measure flow rate. After working at a foreign company, I found that orifice plates were hardly used anymore; basically, electromagnetic, vortex flow meter, and mass flow meters were employed, while Coriolis meters were used for large pipelines. Upon further inquiry, it was learned that the need for orifice plates is not due to an unwillingness to use pressure transduction tubes; installing such tubes requires a lot of labor, and they may become clogged over time, demanding additional labor for maintenance. Labor costs are high abroad, so orifice plates are rarely used in design. I’m really curious whether orifice plates can truly be replaced by other flowmeters that do not require pressure transducers Are there any operating conditions in which an orifice plate is necessary?
Orifice plate differential pressure flowmeters cannot be completely replaced by other flowmeters. Orifice plate differential pressure flow meters feature a simple structure, low cost, and wide range of applications. For certain special operating conditions, such as high temperature and pressure or the measurement of flow rates in media containing solid particles, orifice plate differential pressure flow meters may be more suitable. Although other flowmeters have advantages in terms of installation and maintenance, orifice plate differential pressure flowmeters may still be required under certain conditions. .
This post was last edited by liu530014416 on 2024-3-27 09:39. Yes, it is advisable to use fewer orifice plate flow meters and remote float flow meters; orifice plate meters have large errors, and there are discrepancies between actual process parameters and design parameters. Additionally, insulating and maintaining the pressure tapping pipes requires a lot of effort. Some manufacturers replace differential pressure transmitters with double-flange differential pressure transmitters, thereby eliminating the need for pressure tapping pipes.
Why is a orifice plate used with solid particles?