SWKL

Commercial Kitchen Grease Duct Systems

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SWKL Jeremias

Single Wall Conical all-in-one chimney and exhaust system

  • All-stainless with 25-year warranty
  • Leak proof conical high pressure Joints
  • Cut lenght available for maximum field flexibility
  • Smooth flow and known resistance for perfect factory pressure calculations

Material

444 stainless steel
Optional 304, 316L, or 430 stainless steels

Wall thickness

0.035″ thick

Diameter

5 – 36 inch

Connection

Conical, gasket free

Locking Band

Attached to each part

SWGD

Commercial Kitchen Grease Duct Systems

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SWGD Jeremias

Single Wall Grease Duct

  • Factory CAD designs for installation ease
  • Cut length available for maximum field flexibility
  • All-stainless with Limited Lifetime Warranty
  • Leak proof conical high pressure joints
  • Smooth flow and known resistance for perfected factory pressure calculations
  • Field insulate as required for reduced or zero clearance

Material

ASTM 304 stainless steel

Wall thickness

per UL-1978 Listing

Diameter

3 – 16 inch
18 – 36 inch

Connection

Conical

Locking Band

Attached to each part

DWKL

Stainless Steel Chimney – Double Wall Systems – Colonial

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DWKL Jeremias

Double Wall Conical all-in-one chimney and exhaust system

  • All-stainless with 25-year warranty.
  • Leak proof conical high pressure joints.
  • Cut length available for maximum field flexibility.
  • Smooth flow and known resistance for perfected factory pressure calculations.
  • Low and man-safe skin temperatures.
  • Dramatically reduces clearance to combustibles.

Inner Material

444 stainless steel
Optional 304, 316L, or 430 stainless steels

Outer Jacket Material

304 polished stainless steel
Optional matt, powder coated, brushed, or copper

Wall thickness

Inner Liner 0.035″
Outer Jacket 0.025″ (diameters 5 – 24 inch)
Outer Jacket 0.035″ (diameters 26 – 36 inch)

Inner diameter

5-36 inch

Insulation

Ceramic Fiber, 1.5″ thick compressed to 1.25″ space

Connection

Conical, gasket free

Locking band

Attached to each part

DWKL-Lt

Stainless Steel Chimney – Double Wall Systems – Colonial

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Double Wall -Lighter gauge inner Conical all-in-one chimney and exhaust system

  • All-stainless with 25-year warranty.
  • Leak proof conical high pressure joints.
  • Cut length available for maximum field flexibility.
  • Smooth flow and known resistance for perfected factory pressure calculations.
  • Low and man-safe skin temperatures.
  • Dramatically reduces clearance to combustibles.

Inner Liner Material

444 stainless steel
Optional 304, 316L, or 430 stainless steels

Outer Jacket Material

304 polished stainless steel
Optional matt, powder coated, brushed, or copper

Wall thickness

Inner Liner 0.020″ thick
Outer Jacket 0.025″ thick

Inner diameter

3 – 18 inch

Insulation

Ceramic Fiber, 1.5″ thick compressed to 1.25″ space

Connection

Conical, gasket free

Locking band

Attached to each part

DWFL +1, +2, +3 and +4

Stainless Steel Chimney – Double Wall Systems – Flanged

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DWFL +1, +2, +3 and +4 Jeremias

DWFL – Double Wall Flanged Joint

  • Extremely rugged and made of all-stainless with 25-year warranty
  • Leak proof high pressure joints
  • All components are stainless steel
  • Smooth flow and known resistance for perfected factory pressure calculations
  • Low and man-safe skin temperatures and dramatically reduced clearance to combustibles

Inner Material

Inner liner made of high-grade 444 stainless steel

Outer Jacket Material

Outer jacket made of 304 stainless steel

Wall thickness

Inner

5” through 36” = 0.035” thick

Outer

5” through 24” = 0.025” thick

26” through 36” = 0.035” thick

Inner diameter

6” – 36” I.D.

Insulation

Ceramic fiber insulation at:

1.25”, 2.25”, 3.25”, or 4.25” thick fiber

Connection

Inner connection is a 1.25” conical overlapping joint with added ½” rolled flange and vee band connection.

Supplied sealant is used in the vee band to make seal.

Blanket insulation and outer band completes the joint assembly.

Locking band

Attached to each part

DWFL -ZC Grease Duct

Stainless Steel Chimney – Double Wall Systems – Flanged

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DWFL -ZC Grease Duct Jeremias

DWFL-ZC UL-2221 Zero Clearance & Fire Rated Grease Duct

  • Extremely rugged made in all-stainless with 25-year warranty
  • Leak proof high-pressure joints
  • Cut length available for maximum field flexibility
  • Smooth flow and known resistance for perfected factory pressure calculations
  • Zero clearance and 2-hour fire rated so it eliminates the requirements for an additional fire rated shaft.

Inner Material

Inner liner made of high-grade ASTM 316L stainless steel.

Outer Jacket Material

Outer jacket made of ASTM 304 stainless steel

Wall thickness

Inner

6” through 36” = 0.035” thick

Outer

6” through 24” = 0.025” thick

26” through 36” = 0.035” thick

Inner diameter

6” – 36” I.D.

Insulation

3.25” thick compressed ceramic fiber insulation

Connection

Inner connection is a 1.25” overlapping joint with added ½” rolled flange and vee band connection.

Supplied sealant is used in the vee band to make seal.

Blanket insulation and outer band completes the joint assembly.

Locking band

Attached to each part

DWGD-ZC

Stainless Steel Chimney – Double Wall Systems

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Zero Clearance and fire rated Grease Duct double wall system

  • Leak proof high-pressure joints
  • Cut length available for maximum field flexibility
  • Smooth flow and known resistance for perfected factory pressure calculations
  • Zero clearance and 2-hour fire rated so it eliminates the requirements for an additional fire rated shaft

Wall thickness

Inner Liner per UL-1978/-2221 Listing
Outer Jacket 0.025″ (diameters 6 – 24 inch)
Outer Jacket 0.035″ (diameters 26 – 36 inch)

Inner diameter

5-36 inch

Insulation

3.25″ thick compressed ceramic fiber

Connection

Vee band connection

Locking band

Attached to each part

DWGD +1

Stainless Steel Chimney – Double Wall Systems

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DWGD +1 Jeremias

Double Wall reduced clearance grease duct

  • Leak proof conical high pressure joints
  • All components are stainless steel
  • Smooth flow and known resistance for perfected factory pressure calculations
  • Dramatically reduces clearance to combustibles

Wall thickness

Inner Liner per UL-1978 Listing
Outer Jacket 0.025″ (diameters 5 – 24 inch)
Outer Jacket 0.035″ (diameters 26 – 36 inch)

Inner diameter

5-36 inch

Insulation

Ceramic Fiber, 1.5″ thick compressed to 1.25″ space

Connection

Conical

Locking band

Attached to each part

DWGD-RZ

Stainless Steel Chimney – Double Wall Systems

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  • Provides 2-hour fire resistive shaft and zero clearance duct in a rectangular assembly.
  • Factory-built eliminates welding in the field.
  • Factory-built assurance of finest quality and reliability.
  • Factory-insulated allows for single trade installation.
  • Rectangular configuration allows for alternative use of space in certain restrictive conditions.
  • May be intermixed with Jeremias round DWGD-ZC.

Applications

Stainless steel and factory-insulated zero clearance and fire resistive duct assembly for Kitchen Ventilation Systems.

Features

Extremely rigid inner is made of all-stainless steel with Limited Ten Year Warranty.

Liquid tight joints.

Smooth flow and known resistance for accurate factory pressure calculations.

Zero clearance and 2-hour fire resistive so it eliminates the requirements for an additional fire rated shaft.