Transmitter venting
Thread Content
Differential pressure transmitters are usually installed at a location lower than the measurement point. However, when the flow measurement point is very low and it is not possible to install the transmitter any lower, the transmitter may have to be installed at a higher position. If a collection tank was not included in the design, can the built-in vent valve of the transmitter be used for this purpose? Is it easy to maintain in the long term? Will this type of exhaust valve lose its sealing property after being used multiple times?
Transmitters usually have vent holes, which can be used for venting.
Yes, I just want to know if this valve is convenient to use, and whether it will fail after just a few uses
It’s convenient, as the needle valve isn’t likely to break so easily
It is fine to install the transmitter above the pressure sampling point; refer to the installation manual. All required accessories are available, and there is no need to use the transmitter’s exhaust valve.
Don’t differential pressure transmitters come with a three-valve assembly? with sewage discharge
Do you have any installation manuals available for reference? Thank you
Without this three-valve assembly, it’s rather troublesome
Thank you! Additionally, I would like to ask: for a transmitter used to measure liquids, where the installation location is lower than the measurement point, should the pressure tap of the transmitter face upward? Do I still need to face it downward for exhaust?