Ducted Terminal Diffusers

Deliver high-efficiency HEPA or ULPA filtered air with our Ducted Terminal Diffusers. Engineered for seamless integration into cleanrooms and laminar flow devices, these lightweight units feature room-side adjustable dampers and a low-pressure drop design. Available in standard 2 Χ 2-foot and 2 Χ 4-foot configurations to ensure uniform airflow and UBC-compliant seismic safety.

Request for Quote
Categories: , Tags: ,

Product Overview

Our Ducted Terminal Diffusers provide high-efficiency air filtration for cleanrooms and laminar flow devices. Designed for lightweight installation and long-term reliability, these units ensure your environment meets the strictest ISO standards with minimal maintenance downtime.

Key Features

  • Precision Control: Features a room-side adjustable damper and a centerboard access port for effortless disc adjustment and challenge injection.

  • Superior Air Distribution: Delivers uniform airflow at 100 FPM () with a low-pressure drop design to maximize energy efficiency.

  • Built to Last: Constructed with anodized extruded aluminum frames and a white epoxy powder-coated steel grille to protect the filter media from physical damage.

  • Total Seal Integrity: Potting material completely encapsulates the filter pleats on all four sides, ensuring zero-leak performance.

Terminal DIffuser Dimensions for HEPA Fan Units

Technical Specifications

Feature Specification
Material Galvanized steel hood; Anodized aluminum frame
Duct Collars Available in 10″ or 12″ diameters
Safety UL 586 & UL 900 certified (Fire retardant/Self-extinguishing)
Compliance Seismic holes/tabs included for UBC standards
Mounting 2″ high collar for secure, easy duct connection

Damper Adjustment Guide

Follow these steps to calibrate the airflow of your Ducted Terminal Diffuser without needing to access the ceiling plenum.

  1. Remove the Access Plug: Using a 1/4” flat-head screwdriver, gently remove the well nut (access plug) from the centerboard located in the middle of the filter face.

  2. Locate the Adjustment Screw: Insert the screwdriver through the centerboard opening until it engages with the adjustment screw attached to the internal damper plate.

  3. Calibrate Airflow: * To Close: Turn the screwdriver clockwise.

    • To Open: Turn the screwdriver counter-clockwise.

  4. Reseal the Unit: Once the desired airflow is achieved, remove the screwdriver and firmly replace the well nut to ensure a proper seal.

Pro Tip: Use the centerboard port to perform aerosol challenge injections during routine certification to verify filter integrity.

Damper Assembly Adjustment

Reviews

There are no reviews yet.

Be the first to review “Ducted Terminal Diffusers”

Your email address will not be published. Required fields are marked *

You may also like…

  • Modular Softwall Clean Rooms

    Modular Softwall Clean Rooms

    Read more
  • Ceiling Suspended Softwall Cleanrooms

    Ceiling Suspended Softwall Cleanrooms

    Read more
  • Curtains

    Curtains

    Read more