High-Density Seismic-Resistant Check Valve NEPA-KO for Optimal Airflow Control

The NERPA®-KO High Density Check Valve is a high density air check valve (leakage class 2), with increased rigidity of body and blade construction, designed to automatically close off ductwork when the fan is shut down. Check valves NERPA®-KO have gravity type of action and are designed to work in high-pressure ventilation networks in conditions of sharp drops in operating pressure in the network, as well as for sealing the internal volume of ventilation networks.