Airtight dampers are designed to regulate supply, recirculating or exhaust air in high-pressure ventilation systems, in conditions of sudden surges in the operating pressure in the network, as well as to seal the internal volume of ventilation networks, the operating pressure of which can reach 10,000 Pa.

NER dampers are unique for the domestic market, no comparables are observed.

They are made of both rectangular and round cross-sections.

Design: