Damper Roof Mount MPN:4HX70

This model is a rear flanged gravity supply (intake) wall shutter. The frame and blades are mill finish aluminum with a galvanized reinforcement strip on each blade for added strength and counter balancing efficiency. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Ideal for use with belt-driven centrifugal wall ventilators. Recommended for vertical mount supply (intake) only. The blades will pivot at the bottom and fall with gravity to open.

Technical Specifications

• Item Backdraft Damper
• Type Roof Mount, Exhaust
• Damper Size (In.) 39 x 39
• Overall Size (In.) 41 x 41
• Flange Width (In.) 1 in
• Max. Velocity (FPM) 2,250
• Construction Material Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
• Use w/Dayton Ventilators 4HX89, 4HZ01
• Includes Pre-punched Conduit Hole Knock-out and Felted Edges For Quiet Operation

Manufacturer Details

• Manufacturer: Dayton
• Condensed Mfg Number: 4HX70
• MPN: 4HX70

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: US
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8414901080
• GDS Category Name: Backdraft Roof Dampers
• GDS Family Name: Ventilation Equipment and Supplies
• GDS Segment Name: HVAC and Refrigeration
• UNSPSC: 40101504
• UNSPSC Class ID: 15
• UNSPSC Commodity Name: Ventilation
• UNSPSC Commodity ID: 04
• UNSPSC Commodity Name: Ventilation dampers
• UNSPSC Family ID: 10
• UNSPSC Family Name: Heating and ventilation and air circulation
• UNSPSC Segment ID: 40
• UNSPSC Segment Name: Distribution and Conditioning Systems and Equipment and Components

Shipping Details

• Not For Sale In: HI AK PR