Advanced Valve Designs' Inc. LD style dampers are intended for use in HVAC systems and low pressure (<10"wc) industrial applications. Frames and blades are of 12 to 16 guage construction depending on size. These valves should be used in clean gas systems where particulate matter is not a concern. These dampers offer light weight, economy and durability in low pressure systems.
Standard material is carbon steel but they are available in a wide variety of alloy materials (304 S/S, 316 S/S, etc.).
