Cracking Pressure
Cracking Pressure
(OP)
Hi,
I am supposed to order a check valve to be used on a subsea pig reciver. the check valve is to be used when dewatering the pipeline when receiving the pigs.
the valve is 4" on a 16" line. what would the cracking pressure be?
Thanks,
Leni
I am supposed to order a check valve to be used on a subsea pig reciver. the check valve is to be used when dewatering the pipeline when receiving the pigs.
the valve is 4" on a 16" line. what would the cracking pressure be?
Thanks,
Leni





RE: Cracking Pressure
Why do you need to know the cracking pressure? Is this a low pressure application?
Unless this is a low pressure operation, you should not worry about the cracking pressure. Many check valve manufacturers offer low cracking pressure check valves, but I do not see how pipeline dewatering would require low cracking pressure.
The cracking pressure of most standard check valves are in the 3-5 psig range. In any case, if I needed to know that kind of information, I would ask the valve vendor. The cracking pressure is different for each type of valve. They have all this data for each valve.
RE: Cracking Pressure