The non-return valves or check valves are products that allow the passage of compressed air in one direction (indicated on the valve body by an arrow) preventing it in the opposite direction.
These one way valves are available in various configurations: thread-to-thread, thread-to-tube and tube-to-tube; in asymmetrical configurations it is possible to choose the product with the desired free air direction.
The non-return valves can be in nickel-plated brass or in technopolymer or plastic material.
