Check Valve or One Way Valve - Spring Type

A quick look at a cutaway of a spring type check valve for plumbing.
This type can be used in all orientations. Some check valves rely on gravity and those are often limited to 1 or 2 orientations.

This one was loaned to me by a company that I have done work for in the past.

Видео Check Valve or One Way Valve - Spring Type канала tsbrownie