Double Wall Ductwork

18 Gauge Stainless Steel Welded Double Wall with 2" Liner

22 Gauge Galvanized Double Wall Ductwork

18 Gauge Galvanneal Double Wall Ductwork

22 Gauge Galvanized Double Wall Ductwork

Aluminum Sure Seal Double Wall Lateral

.050 Type 3003 Aluminum Double Wall Duct with TDC connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.050 Type 3003 Aluminum Double Wall Rectangular Duct with TDC connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.050 Type 3003 Aluminum Rectangular Double Wall Ductwork with TDC connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

22 Gauge Type 304 Stainless Steel Double Wall Elbows with Slip connection. Stainless Steel 304 Definition – This basic 18 chrome/8 nickel stainless steel is the most versatile and widely used austenitic grade. It has excellent drawing and forming characteristics and provides excellent resistance to a wide range of corrosives. It also has good elevated temperature properties and excellent toughness at cryogenic temperatures.

20 Gauge Type 304 Stainless Steel Double Wall Ductwork and Fittings with Companion Flange connection. Stainless Steel 304 Definition – This basic 18 chrome/8 nickel stainless steel is the most versatile and widely used austenitic grade. It has excellent drawing and forming characteristics and provides excellent resistance to a wide range of corrosives. It also has good elevated temperature properties and excellent toughness at cryogenic temperatures.

20 Gauge Galvanneal Double Wall Spiral with Accuflange Connection. Galvanneal Definition - Heat treating process alloys galvanized zinc coating to steel and provides good surface for immediate painting. No spangle to show through. Withstands temperatures to 750 degrees F without flaking - unlike ordinary galvanized. A60 and A40 coating available.

20 Gauge Galvanneal Double Wall Damper with Accuflange Connection. Galvanneal Definition - Heat treating process alloys galvanized zinc coating to steel and provides good surface for immediate painting. No spangle to show through. Withstands temperatures to 750 degrees F without flaking - unlike ordinary galvanized. A60 and A40 coating available.

20 Gauge Galvanneal Double Wall Elbow with Accuflange Connection. Galvanneal Definition - Heat treating process alloys galvanized zinc coating to steel and provides good surface for immediate painting. No spangle to show through. Withstands temperatures to 750 degrees F without flaking - unlike ordinary galvanized. A60 and A40 coating available.

22 Gauge Galvanneal Double wall Square to Round with Accuflange Connection. Galvanneal Definition - Heat treating process alloys galvanized zinc coating to steel and provides good surface for immediate painting. No spangle to show through. Withstands temperatures to 750 degrees F without flaking - unlike ordinary galvanized. A60 and A40 coating available.

Double Wall Ductwork and Fittings used throughout the Vessel.

Double Wall Ductwork and Fittings Used throughout the Vessel.

Double Wall Ductwork and Fittings Used throughout the Vessel.

24 Gauge Galvanized Double Wall Spiral Ductwork. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanized Double Wall Rectangular Fresh Air Intake. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanized Double Wall Oval Fittings with Accuflange Connections. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

22 Gauge Galvanized Double Wall Spiral Ductwork with Rectangular Takeoff. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanized Double Wall Rectangular Ductwork with TDC connection.Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanized Double Wall Transitions with TDC connections. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

24 Gauge Type 316 Stainless Steel Double Wall Transition with TDC connection. Stainless Steel 316 Definition – The addition of molybdenum and higher nickel content give 316 better corrosion and pitting resistance than 304 plus higher strength at elevated temperatures. Used for pumps, valves, textile and chemical equipment, pulp/paper and marine applications.

18 Gauge Galvanized Double Wall Spiral Ductwork with Angle Ring Connections. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanized Double Wall Square to Round. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

18 Gauge Galvanneal Double Wall Elbow with Companion Flange connection. Galvanneal Definition - Heat treating process alloys galvanized zinc coating to steel and provides good surface for immediate painting. No spangle to show through. Withstands temperatures to 750 degrees F without flaking - unlike ordinary galvanized. A60 and A40 coating available.

20 Gauge Galvanized Double Wall Elbow with Perforated Inner Core and Angle Ring connection. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

20 Gauge Galvanized Double Wall Spiral Ductwork with Perforated Inner Core and Angle Ring connection. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.

22 Gauge Galvanized 1" Double Wall Spiral Ductwork - Fabrication Step 1. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.