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Universal Characteristics

  • ETL Class 1 Air Duct
  • Flame/Smoke: 25/50
  • Operating Temperature
    Range:-20oF to + 250oF
  • Rated Velocity: 5500 F.P.M.
  • Available Thermal Conductance
    (R-factor): R4.2, R6 or R8
  • Standard Length: 25 Ft.
  • Vapor Barrier Permeance: 
    Black Polyethylene (B) -
    .10 Perm A.S.T.M., E96, Procedure A
    Silver Mylar (M) -
    .05 Perm A.S.T.M., E96, Procedure A
  • Connector Rated: Limited to 14 Foot Runs
  • 20 Year Warranty - Except Type 9 (5 Years)

 

Robust Mechanical Lock Construction

ETL Class 1 Rated

UL 181 vs. ETL
Nationally Recognized Test Laboratories:
http://www.osha.gov/dts/otpca/nrtl

 

Type 9 Flexible Duct

Data Sheets:     9M

Designed for efficient installation and engineered to precise standards, our flexible duct sets the standard in quality and dependability. Unique to others in the industry, we manufacture flexible ductwork without the use of glues or adhesives. The mechanical-locked inner core maintains its shape at all 90° bends and offsets, thus eliminating the need for extra reinforcement.

This manufacturing process produces a flexible duct with the highest performance credentials of any flexible duct.

The Flexmaster U.S.A.® Type 9M flexible duct is backed by a 5 year warranty.

Type 9M Flexible Duct