Gaylord GDS User Manual

DUCT SUMP

MODEL GDS SERIES

GENERAL SPECIFICATION

Furnish one Model GDS - ______ x ______ x 24"L Duct Sump
as manufactured by Gaylord Industries, Inc., Tualatin, Oregon.
The sump shall be constructed of 16 gauge stainless steel and
shall include 1" anges at the inlet and outlet collars for welding
to the duct system. All corners and seams shall be continuously
welded. The duct sump shall include a stainless steel spray
manifold with brass spray nozzles, a 1-1/2" drain with pre-ush
line. The sump shall also include an access panel, with 1500°F
gasketing, secured by weld studs with wing nuts for easy removal
without tools. If the sump is larger than 36" wide, there shall be
an access panel on each side. The access panel shall meet all
requirements of NFPA-96. The sump shall be interconnected with
the water-wash ventilator control cabinet and wash simultane­ously with the ventilator. (Note: If the system does not include a
water-wash ventilator, a control cabinet must be specied.) Duct
sump shall be approved by the City of Los Angeles Department
of Building and Safety.

APPLICATION

The Gaylord Duct Sump is designed to be installed at the low
point(s) of long horizontal duct runs to collect and drain off mois­ture, liqueed grease, etc. The International Mechanical Code
(IMC), species that ducts must slope not less than 2% towards
a hood or a grease reservoir (duct sump) and that duct runs over
75 ft. must slope not less than 8.3%. The installation of one or
more duct sumps allows a 2% slope on duct runs exceeding 75
ft. by zig zagging the duct up and down as illustrated on the back
of this specication sheet.

ESTABLISHING MODEL NUMBERS

The model number is determined by the size of the sump.
Specify the model number as follows:

GDS - _______ x _______ x 24" L

Width Height Length

W

H

ITEM NO.

GENERAL DESCRIPTION

The Gaylord Duct Sump is constructed of 16 gauge stainless
steel with all corners and seams continuously welded. It is
equipped with a spray manifold, drain with pre-ush line and
a removable access panel. The panel is removed without the
use of tools and meets all requirements of NFPA-96. 1" anges
are provided at the inlet and outlet collars for welding to the
duct system. Each duct sump is 24" long and is custom built
to match the duct size required.

Typically, The Gaylord Duct Sump is provided in conjunction
with a Gaylord Water-Wash Ventilator. The wash manifold of
the duct sump would be interconnected to the hot water line
coming from the ventilator control cabinet and therefore, the
sump would be washed daily with hot detergent injected water
simultaneously with the ventilator. An average wash cycle is
5 minutes. If the project is not utilizing a Gaylord Water-Wash
Ventilator, then a Gaylord Control Cabinet, Model “GPC” Se­ries must be provided. Refer to “GPC” Series Control Cabinet
specication sheet for details.

The Gaylord Duct Sump, Model “GDS” Series is approved by the
City of Los Angeles, Department of Building & Safety, Mechani­cal Testing Laboratories Research Report Number RR7657.

GAYLORD INDUSTRIES

10900 SW AVERY STREET • TUALATIN, OREGON 97062 U.S.A.

PHONE: [phone] • FAX: [phone] • email: [e-mail]

GAYLORD MODEL GDS DUCT SUMP

TRAHCEZISEPIP

"2/1EDIW"63OTPU

"4/3EDIW"08OTPU

TYPICAL DUCT SUMP ARRANGEMENT

ITEM NO._____________
MODEL NO.___________

SIDE VIEW

WATER REQUIREMENTS

1. H.W. TEMP AT CONTROL CABINET
140° F MIN. - 180° F MAX.

2. WATER PRESSURE AT CONTROL CABINET
40 PSI MIN. - 80 PSI MAX.

3. WATER CONSUMPTION 1.5 GPM AT 40 PSI FOR
EVERY 12" OF WIDTH

Form No. DS0812/30733 © Copyright 2002, Gaylord Industries Litho USA

END VIEW

The manufacturer reserves the right to modify the materials
and specifications resulting from a continuing program of
product improvement or the availability of new materials