Ultra-performance protection against gas return: compact, quiet, ideal for low pressure applications. Opening pressure approx. 4 mbar, working pressure up to 16 bar, G / NPT 1", 1/2", 3/4"
safety element: non-return valve [NV]
every non-return valve 100% tested
DIN EN ISO 5175-2
ultra-low opening pressures (approx. 4 mbar), ultra-low pressure drop
compact and light: 52 X 67,5 mm, 510 g, G / NPT 1", 1/2", 3/4"
minimal noise emission
dirt filter (100 μm) on gas inlet
ideal for applications where low pressures are used e.g. thermal processing, biogas etc.
WITT non-return valves for reliable protection against dangerous reverse gas flow. Flow-optimised valve system causes very low pressure drop at minimal noise emission. Every non-return valve 100% tested.
Benefits
a spring loaded non-return valve prevents back feeding of gases which could lead to unwanted gas mixtures
low pressure drop – using complex valve assembly with low opening pressures (ca. 4 mbar)
stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life
flow-optimised valve system for:
- ultra low pressure drop
- minimal noise emission
no leaks – using of a spring loaded valve assembly with elastomer sealing
in accordance to DIN EN ISO 5175-2
available in brass or stainless steel
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
the same size as model NV200 for easy replacement