Frequently Asked Questions (FAQs)
Valve at the inlet or outlet: What are the bases for the decision?
The following principles apply:
It is significant for the design that conditions, which are as constant as possible, are to be strived for in the measuring tube. The application determines the point of installation of the regulating valve. Most of the processes are close to atmospheric at the outlet side. In this case, the flow control valve is placed on the inlet.
There are processes, in which the pressure is not stable downstream from the flow meter. In this case, the regulating valve needs to be placed at the outlet. Warning: In this configuration, it is very important for the adjusted inlet pressure to be stable and to coincide with the designed pressure in the measuring tube. This arrangement is considerably more stable, because the depressurizing takes place downstream from the regulating valve (see also stable flow in response to changing conditions).
The following principles apply:
It is significant for the design that conditions, which are as constant as possible, are to be strived for in the measuring tube. The application determines the point of installation of the regulating valve. Most of the processes are close to atmospheric at the outlet side. In this case, the flow control valve is placed on the inlet.
There are processes, in which the pressure is not stable downstream from the flow meter. In this case, the regulating valve needs to be placed at the outlet. Warning: In this configuration, it is very important for the adjusted inlet pressure to be stable and to coincide with the designed pressure in the measuring tube. This arrangement is considerably more stable, because the depressurizing takes place downstream from the regulating valve (see also stable flow in response to changing conditions).
Important note: New software version get red-y released September 20, 2023
In addition to numerous improvements, this version contains a firmware update feature for devices of the red-y smart & industrial series to the current firmware version*.
More information about the Software, Firmware-Update, Release Note and additional FAQs
Download current get red-y software
*Only for devices from SN 160000 and higher
