Benefits ● a spring loaded non-return valve prevents back feeding of gases which could lead to unwanted gas mixtures ● low pressure drops – using complex valve assembly with low opening pressures (Model NV200 – approx. 4 mbar, Model NV100 – approx. 30 mbar) ● no leaks – using of a spring loaded valve assembly with elastomer sealing ● stainless steel filter (100 µm – only Model NV200) in the gas inlet protects the non-return valve against dirt contamination, extending the service life ● diverse applications – useful for many technical gases ● reduce installation costs – the spring loaded valve is not affected by gravity and may be installed in any orientation