Pressure Relief Dampers - HPR-120

The HPR-120 is a pressure relief damper with a double flanged channel frame. It protects HVAC systems and industrial processes by relieving air pressure. Blade Type: 2V Pressure Relief: 0.1 in. wg to 1 in. wg (.025 - .249 kPa) Back Pressure: 5 - 8½ in. wg (1.24 - 2.11 kPa) Velocity: Up to 5150 fpm (26.2 m/s) Temperature: -20°F to 200°F (-29°C to 93°C) with seals; -20°F to 250°F ( -29°C to 121°C) without seals