Duro Dyne 26220 Duct Liner Washer Pin 1/2 Inch

Product Description

The DURO DYNE 26220 is an aerodynamic duct liner washer pin designed for mechanically fastening insulation to duct interiors. The pin features a distinctively embossed washer with a recessed nail head. This recessed head geometry creates a flush, air-stream-friendly surface on the finished insulation face, reducing turbulence inside the duct. The embossed washer profile improves the quilting contour of the secured liner while also providing a strong, stable welding contact point. HVAC sheet metal mechanics and duct fabricators install this pin during duct liner applications in new construction and retrofit work.

The 26220 is suited for use on 1/2 inch duct liner in residential and light commercial HVAC ductwork. It is applied during duct board and liner fabrication, either in a shop or in the field, where insulation must be secured flush to the interior duct surface before airflow is introduced. The aerodynamic washer design makes it particularly appropriate for supply-side duct systems where surface irregularities can affect airflow performance.

Key Features

• Aerodynamic washer profile creates a flush, air-stream-compatible insulation surface
• Recessed nail head minimizes protrusion into the airstream
• Embossed washer improves quilting contour of secured duct liner
• Washer geometry provides a strong, stable contact point for welding
• Sized for 1/2 inch duct liner applications

Compatibility

Designed for use with 1/2 inch duct liner in standard HVAC duct fabrication and insulation fastening applications.

Installation Notes

Duct liner washer pins are typically installed by sheet metal mechanics or HVAC duct fabricators following SMACNA duct construction standards. Pins are welded to the duct interior surface using a pin spotter or stud welder before the liner is pressed into place. Ensure the duct surface is clean and free of oils or coatings that could interfere with the weld. Always power down associated air handling equipment before working inside duct sections.

Technical Specifications

• Item Type: Washer Pin
• Size: 1/2 inch
• Style: Aerodynamic
• Application: 1/2 inch duct liner

Standard Information

• Brand: DURO DYNE
• Manufacturer Part Number: 26220