Find below the details of proportional relief valvehttp://files.engineering.com/getfile.aspx?folder=c0fd316e-0032-42ca-9eb0-a8746f9a16f7&file=RV_SERIES_Proportional_Relief_Valves_(2).pdf
Thank you so much LM
I will upload the two files. Manufacturer Fitok is for proportional relief valve and manufacturer circle seal for inline relief valve.I would like to know the difference between proportional relief valve and the inline relief valve...
1. Can any one advise me ,If it is necesary to test and tag proportional relief valves like (swagelok-R series) fitted on control panels of well heads and chemical injection skids on a regular frequency.
2.If we do not need calibration of proportional relief valves how can we justify.
Reuban