re: How does an equalization line work
re: How does an equalization line work
(OP)
Hi,
While I was reading a flowsheet, I came across with a gate line with an equalization line? While the gate valve is closed, how does it equalize the upstream and the downstream pressure without bypassing any fluid?
Thanks
While I was reading a flowsheet, I came across with a gate line with an equalization line? While the gate valve is closed, how does it equalize the upstream and the downstream pressure without bypassing any fluid?
Thanks





RE: re: How does an equalization line work
RE: re: How does an equalization line work
RE: re: How does an equalization line work
RE: re: How does an equalization line work
I also came across one more point that mostly Globe valve is a preferred Bypass valve.But I could not find any other reasons except that it can be used for throttling purpose.
RE: re: How does an equalization line work
If the valve application that you need is for throttling of the system fluid (e.g., a bypass line around a larger isolation valve, then a Globe valve is a better choice. Gate valves are chosen strictly for "isolation" valves because when fully open they provide very little system resistance. Globe valves will give more pressure drop through the system, however that is a property from their design because they are good throttle valves.