News

07/23/2026

Measuring the Effect of Bird Screen on Pressure Loss for Louvers

Bird screens are a popular louver accessory used to prevent birds, other small animals, trash, and random small debris from entering through the spaces between louver blades and infiltrating the building ventilation system. Bird screens are extremely common, and even a default option from many louver manufacturers. However, because AMCA does not currently certify pressure loss performance for a louver with a screen, published pressure loss data across the louver industry is almost entirely derived from testing non-screened samples. To better serve customers, Pottorff recently completed a series of tests to determine how the addition of bird screen will affect the overall pressure drop across a louver under airflow. Click the link to read more!

10/02/2025

High-Temp Option for Select Control Dampers

The CD-41, 42, 45, 46, 51, & 52 Control Dampers are now available with a high-temperature rating of up to 275°F, meeting engineering standards for applications that demand high heat resistance.

• Complies with specs calling for dampers rated to 275°F
• Auto-configures for high-temp performance when selected
• Upgraded seals and bearings for built-in heat resistance

No extra steps. Select the high-temp option—the rest is handled automatically.

10/02/2025

Stainless Steel Linkage Option for Thermally-Insulated Control Dampers

TICD Dampers are now available with a 316 Stainless Steel (SS) linkage option, built to meet demanding engineering specs and resist harsh environments.

• Meets specifications requiring 316 SS linkage construction
• Corrosion-resistant for use in demanding environments
• Improved durability where standard linkage won’t cut it

Extend the reliability of your TICD dampers—now with 316 SS linkage.

09/25/2025

One-Time Exclusive Webinar: Pottorff’s Q3 New Product Review

September 30, 2025 at 10:00 AM CT

Secure your spot now: https://www.eventcreate.com/e/pottorff-new-product-dev-september

This is your only opportunity to see Pottorff’s latest Q3 2025 product innovations in a live webinar format. If you’re an engineer, contractor, sales rep, or HVAC professional, this session is designed for you.

What you’ll learn:

• Expanded applications across various projects
• New product updates that streamline design

Presented by:
James Carlin, Damper Product Manager
Brent Farmer, Louver Application Engineer

05/12/2025

EXA-645 Features Increased Maximum Single Section Size and Heavy-Duty Frame Option!

Our 6” deep, combination louver offers top-tier water protection, and Class 1A leakage rating for section heights of 96” and less.

Maximum Single Section Size: 60” x 120”

Heavy-Duty Frame Option with Higher Load Rating of 35 psf.