Usage notes for orifice plates
Thread Content
I’m seeking expert advice: without considering the effect of differential pressure, can orifice plates be used with all types of media? What about some liquid gasoline or fuel oil?
Particle-containing, corrosive slurries – non-Newtonian fluids are not suitable for use with orifice plates; clean gasoline and diesel can be used. If the viscosity is high, a 1/4 circle orifice plate is required.
As long as the medium is clean and not highly corrosive, it’s fine; oil is also acceptable. In fact, many products used in the fine chemical industry are even more dangerous than oil
Specifically, is it a metering orifice plate or a throttling orifice plate? The material of the orifice plate is crucial; it must have both hardness (to resist erosion) and corrosion resistance ； If it’s just throttling, that’s simple; but for measurement, it’s necessary to turn to specialized flow meter manufacturers for design and production, applicable to both gases and liquids ； The cleanliness of the medium used is crucial. If the flow rate of the medium is high and there are hard particle impurities present, the orifice plate will be severely damaged, which reduces the accuracy of the measuring orifice plate. Therefore, it is an effective measure to install a certain number of filters with appropriate mesh sizes in the process to ensure the cleanliness of the medium.
May I ask, what about a mixture in which there are other substances present, such as in wastewater – what about 20% ammonia solution?
Other effects are poor except for removing gases