What is a good solution if the throttle element is installed in the wrong direction?

This is a poor solution~~ We can’t manufacture the throttling components; with 250 kilograms of hydrogen, our current workaround is to reverse the positive and negative pressures of the transmitter. This works, but the reading is inaccurate – it’s lower than the actual value. .

Home remedies, see floor 4. http://bbs.hcbbs.com/thread-1578304-1-1.html

It depends on whether you need an accurate value. If so, it’s better to replace it when work stops; whatever you do, it will only provide a temporary solution rather than a permanent one. Well, this flow meter doesn’t give accurate readings. . . Then what’s the need for a flow meter? . .

This post was last edited by yuchenchf on 2016-5-17 08:40. In fact, one could ask the manufacturer to do the calculations, or I remember there being some factor related to the decrease in differential pressure when the orifice plate is installed in the reverse direction; there seems to be a corresponding value for standard orifice plates. When configuring the system, one just needs to multiply the reading from the transmitter installed in the reverse direction by this coefficient to calculate the flow rate. But I remember that some people used to say that installing an orifice plate in the reverse direction would result in higher readings, and this is actually due to two factors – the main factor being the reduction in differential pressure, which definitely leads to lower readings. As for the factor that causes higher readings, I can’t recall it exactly; it’s something like the guiding effect of the liquid. If the differential pressure is multiplied by a coefficient after the plate is installed in the reverse direction, then this factor no longer needs to be taken into account. As a result, the measurement error will certainly increase a bit, hehehe

This only solves the issue with the gauge; however, this gauge is no longer useful at all. As long as it doesn’t show an extremely high current limit, there’s nothing to do but wait until it can be replaced during maintenance!

This post was last edited by seiluobin on 2016-5-13 08:55. It seems to be this thing; where did you find it? I can see you know a lot about it. The deviation value% = -18.93 + 12.91β - 34.04 (E/D) + 8.9 (e/E) + 13.64(e/E)². What does the 2 in the lower right corner mean? What are E and D respectively?

It seems pretty impressive; what’s the coefficient?

This post was last edited by HEJIYUER on 2016-5-14 23:58. What is that 2 in the lower right corner? What are E and De squared respectively? D: Inner diameter of the pipe. E: Total thickness of the orifice plate. e: “Straight-line” length of the inner hole of the orifice plate. For example, E is 5mm, e is 3mm, and the remaining 2mm is the chamfer length. When E = e, it is called a two-way orifice plate, which can measure flow in both directions. You can verify it; the error at this point should be very small.