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Dayton 51"H 51"W Drnbl Extrd Alu Combo Dmpr: Flanged, 47 1/2 in H, 47 1/2 in W - Combination Dampers & Louvers with Drainable Blades
DaytonCombination Dampers & Louvers with Drainable Blades

Dayton 51"H 51"W Drnbl Extrd Alu Combo Dmpr: Flanged, 47 1/2 in H, 47 1/2 in W

The Dayton 20UA30 is a 51"H x 51"W combination damper and louver with drainable extruded aluminum blades and a flanged frame. It features a 45° blade angle and a maximum air velocity of 3000 fpm. The unit has a 47…

SKU 3G-OTH-75884

Brand
Dayton
Item
51"H 51"W Drnbl Extrd Alu Combo Dmpr: Flanged, 47 1/2 in H, 47 1/2 in W
Category
Combination Dampers & Louvers with Drainable Blades
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Technical Specifications

Dayton
Manufacturer Part Number
20UA30
Type
47 1/2 in W, Aluminum
H
47 1/2 in
Blade Angle
45°
Maximum Air Velocity
3000 fpm
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 20UA30 is a 51"H x 51"W combination damper and louver with drainable extruded aluminum blades and a flanged frame. It features a 45° blade angle and a maximum air velocity of 3000 fpm. The unit has a 47 1/2"H x 47 1/2"W internal opening.

Frequently Asked Questions

What is the Dayton 20UA30 combination damper and louver used for?

The Dayton 20UA30 is a combination damper and louver with drainable extruded aluminum blades, used in commercial HVAC systems to control airflow while preventing water ingress. It is ideal for intake or exhaust applications requiring both ventilation and weather protection.

What are the specifications of the Dayton 20UA30?

The Dayton 20UA30 has a 51"H x 51"W flanged frame with a 47 1/2"H x 47 1/2"W internal opening. It features drainable extruded aluminum blades at a 45° blade angle and a maximum air velocity of 3000 fpm. The brand is Dayton, with MPN 20UA30.

Where to buy the Dayton 20UA30 worldwide?

3G Electric supplies the Dayton 20UA30 combination damper and louver worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the Dayton 20UA30 combination damper?

Install the Dayton 20UA30 by mounting the flanged frame securely to the duct opening, ensuring proper gasket sealing to prevent air leaks. Verify the blade angle is set to 45° and that the drainable blades are oriented for water runoff. Follow standard HVAC installation practices for best performance.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton combination dampers & louvers with drainable blades. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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