Thanks all. I understand theoriticaly why a pilot valve will open prematurely before reaching its set point if the sensing line freezes.
However, I still dont understand why it will NOT open when it reaches set point due to sensing line freezing up. The operators i spoke to said they haven't...
Hello I have a quick question. What effect does freezing of pilot sensing lines have on its operation? Pre mature lifting? or potential for overpressure? Any insight will be appreciated. Thanks