The long running valve best in O2 applications. Why the plate valve? The Burckhardt Plate Valve™ is of proven design, which has been continually optimized over the years. Special care has been given to improve the robustness and longevity of the valve plate, damper plate and the springs under different operating conditions. A decisive advantage for the operator is the conversion from metallic to non-metallic plates and vice versa without additional machining on the valve. Only the Burckhardt Plate Valve™ has this outstanding advantage.