What type of check valve is used on the riser?
Thread Content
There is a technical upgrade involving a vertical pipe, and check valves need to be installed; nitrogen flows from top to bottom； What type should be chosen for adding a check valve? ；
On vertical pipes, check valves are usually installed from bottom to top; there are no ones that work in the reverse direction. It is recommended to find a section of horizontal pipe in the pipeline and install a horizontal check valve there.
The poster can learn about spring-assisted through-flow check valves. Of course, it’s best to choose a design with fluid entering from below and exiting from above, as this is more reliable!
There are no check valves installed from top to bottom; if necessary, a check valve should be installed at the horizontal level of the nitrogen pipe.
1. Nitrogen pressure； 2. Spring check valve ； Make sure to verify that the nitrogen pressure is sufficient to lift the spring
Thank you, big bro, for clarifying this: handshake
Thank you, boss:handshake
Both axial and swing types are acceptable; it’s best to do it from bottom to top or horizontally.