Plunger valve
Thread Content
Experts, what value is appropriate for calculating the equivalent length of a plunger valve?
The topic is too technical; it would be better if it were more straightforward. For example, the function of the plunger valve, as well as the required standards or objectives to be achieved. For reference.
It’s not too professional; rather, the problem is incomplete... there are still many unknown variables, I don’t understand it!
This post was last edited by yourp on 2020-8-19 at 16:41. Plunger valves have a structure that is somewhat similar to that of globe valves; the equivalent length of a globe valve can be used as a reference. However, the equivalent length depends on factors such as the nominal size, so I can only provide you with the resistance coefficient K – 6.4 for fully open conditions and 9.5 for partially open conditions. These values apply in cases of turbulent flow. At laminar flow, when the Reynolds number RE is 1000, K is 12; when RE is 500, K is 14; and when RE is 100, K is 19.
Thank you, expert. I’ll study it more carefully