We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Aluminum adjustable louver with flanged frame, 22 by 28 inches, silver finish

Dayton

Dayton 2FTV9 Adjustable Louver 28 to 46 In Aluminum

SKU CH-7CP1-5TCGA MPN 2FTV9

Adjustable aluminum intake louver spans 28 to 46 inches wide with 22-inch height and 1.8 sq ft free area

  • TypeDrain Components
  • Adjustable width fits 28 to 46 inch openings
  • Aluminium construction resists corrosion in HVAC systems
  • Stationary 45-degree blades direct airflow efficiently
  • 8 square foot free area allows high-volume intake
  • Water penetration resistance tested at 766 fpm

Adjustable Aluminium Louver 28 to 46 In

The Dayton 2FTV9 is a stationary-blade aluminium intake louver designed for surface-mount installation. Its flanged frame fits a rough opening of 18 in height by 24 in width. The unit serves commercial and industrial ventilation systems that require a fixed blade angle of 45 degrees.

Airflow Limits at 3000 fpm Maximum Velocity

The louver delivers a maximum intake of 2,010 cfm and a maximum exhaust of 2,875 cfm through 1.8 sq ft of free area. Water penetration begins at 766 fpm, so designers must size ductwork to keep face velocity below that threshold. The blade spacing and frame depth of 4 in set the practical pressure-drop boundary for the system.

Surface Mount With Flanged Frame

The 2 in flange bolts directly to the wall opening, so installation requires accurate rough-opening dimensions of 18 by 24 in. Misalignment of the flange is the most common issue, causing air leakage around the perimeter. The adjustable width range of 28 to 46 in allows on-site trimming, but cutting the blades incorrectly reduces free area and raises velocity past the 766 fpm limit.

Highlights

  • Adjustable width fits 28 to 46 inch openings
  • Aluminium construction resists corrosion in HVAC systems
  • Stationary 45-degree blades direct airflow efficiently
  • 8 square foot free area allows high-volume intake
  • Water penetration resistance tested at 766 fpm

Specifications

TypeDrain Components
BrandDayton
Model2FTV9

Questions about this item

Which width should I choose between the 28 in minimum and 46 in maximum?

Select a width that matches your rough opening; the unit adjusts from 28 in to 46 in outside width with a 2 in flange, and the rough opening width is 24 in.

What does the 2,010 cfm maximum intake mean for actual airflow?

It is the highest intake volume the louver can pass before water penetration begins at 766 fpm; free area is 1.8 sq ft.

How does the 3,000 fpm maximum air velocity limit performance?

Air velocity through the free area must stay at or below 3,000 fpm; exceeding it can reduce water resistance and increase pressure drop.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.