CaptiveAire DW-2R User Manual
Visit us online at www.captiveaire.com
Factory Built
General Product Overview:
The use of a listed, factory built grease duct offers a clear
advantage when compared to traditional rectangular duct
systems. Round ductwork improves the overall performance
of the system with increased laminar flow through the duct and
reduced buildup of grease in the corners like traditional duct.
Our listed grease duct can fit any application including new
construction or retrofits.
DUCTWORK
TAKE THE
WORK
OUT OF
DUCTWORK
No On-Site Welding Required | Universal “V” Clamp Connections
Standard Features & Benefits:
Single wall diameters 8” to 24”
3/4” Reduced Clearance and Zero inch clearance available
Duct and accessories are made from stainless steel
Submittals and duct CAD files
Lighter weight for easy installation
Ordering Information:
Visit our website at www.captiveaire.com or
call us for a custom quote at 1.800.334.9256.
Our sales and engineering team will work
directly with you to meet specific application needs.
Meeting the Standard:
UL 1978 – Standard for Grease Duct
UL 2221 – Fire Resistive Grease Duct Enclosure Assemblies
NFPA 96 – Installation Standard
ASTM E2336 – Test Method for Fire Resistive Grease Duct Enclosure System
Replacement Parts:
We also offer duct parts if you need any additional ductwork
accessories, please give us a call at 1.800.334.9256.
4641 PARAGON PARK RD. RALEIGH, NC 27616 | 1.800.334.9256 | WWW.CAPTIVEAIRE.COM
Double Wall
Ductwork
Visit us online at www.captiveaire.com
TAKE THE
WORK
OUT OF
DUCTWORK
No On-Site Welding Required | Universal “V” Clamp Connections
Double Wall
Standard Features & Benefits: Grease Duct Clearances:
ETL Listed to UL Standard 1978 and UL Standard 2221-
Grease Duct Enclosure Assemblies
Inner duct diameters range from 8” to 24”
3/4” Reduced Clearance and Zero inch clearance
available
High Temperature Blanket Insulation
Through floor support assembly and fire stop kit
allow for duct systems to penetrate a fire resistance
rated floor
DUCTWORK
NEW PRODUCT!
Combustible
Surface
3/4” Clearance
To Combustible
Surface
Double Wall
Duct - 2R & 3R
Double Wall
Duct “V” Band
Meeting the Standard:
UL 1978 – Standard for Grease Duct
UL 2221 – Fire Resistive Grease Duct Enclosure Assemblies
NFPA 96 – Installation Standard
ASTM E2336 – Test Method for Fire Resistive Grease
Duct Enclosure Systems
Ordering Information:
Visit our website at www.captiveaire.com or
call us for a custom quote at 1.800.334.9256.
Our sales and engineering team will work directly with you to
meet specific application needs.
4641 PARAGON PARK RD. RALEIGH, NC 27616 | 1.800.334.9256 | WWW.CAPTIVEAIRE.COM
DUCT INNER OUTSIDE CLEARANCE TO CLEARANCE TO
MODEL DIAMETER (ID) DIAMETER COMBUSTIBLES NON-COMBUSTIBLES
DW - 2R 8” - 16” ID + 4 3/4” 0”
DW - 3R 8” - 24” ID + 6 3/4” 0”
DW - 3Z 8” - 24” ID + 6 0” 0”
Replacement Parts:
We also offer duct parts if you need any additional ductwork
accessories, please give us a call at 1.800.334.9256.
“V” Band On Reduced Clearance Duct, 2R & 3R
May Be In Contact With Combustible Surfaces
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