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- PSV is designed to be used for natural ventilation. Special slide mechanism allows easy and quick mounting.
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- KIV compensation air valve is designed for fresh air intake in exhaust ventilation systems. The volume flow can be steplessly controlled using the adjusting knob or robe.
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- RIV fresh air valve is especially designed for fresh air supply when air flow volumes are small. RIV valve may be fitted through walls, ventilation panes or behind the radiator.
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