The majority of malfunctions in digital pressure controllers are caused by improper use and installation methods, so they must be installed strictly in accordance with technical requirements. The correct installation includes the opening position of the pressure tap, the reasonable laying of the connecting conduit, and the correct installation position of the instrument.Pressure controller manufacturerThere are several points to note in the summary:
1. Avoid areas where the pipeline is bent, branched, or where vortices are formed by the flow.
2. When pressure must be taken near the regulating valve, if the pressure tap is in front of it, the distance from the valve should not be less than twice the pipe diameter; If the pressure port is located behind it, the distance from the valve should not be less than 3 times the diameter of the pipe.
3. For wide containers, the pressure tap should be located in an area where the fluid flow is smooth and there are no eddies. In summary, the position of the pressure tapping port determined in the process flow should ensure the measurement of the selected process parameters.
4. The horizontal section of the connecting conduit should have a certain slope to facilitate the removal of condensed liquids or gases. When the measured medium is gas, the conduit should tilt low towards the pressure tap direction; When the measured medium is a liquid, the conduit should be inclined towards the direction of the pressure measuring instrument; When the measured parameter is a smaller differential pressure value, the inclination can be slightly larger.
5. At the bend of the conduit, a condensate drainage device should be installed at the lowest point or an exhaust device should be installed at the highest point according to the medium situation in the conduit, to ensure that the measurement accuracy is not affected for a considerable period of time due to the accumulation of condensate or gas in the conduit. Condensed liquids or gases should be discharged regularly.