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Orifice for expansion valve, ORF, R407C; R452A; R407A; R134a; R407F; R404A/R507A; R513A; R1234yf; R22; R448A; R449A (067B2792)

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
Building Systems Solutions Greenheck

This product is no longer available.