GDPL4F

Inner wall: 316L or 304 2B stainless steel (20 ga – 6” (152 mm) to 40” (1016 mm) diameter; 18 ga – 42” (1067 mm) to 48” (1219 mm) diameter).
Outer wall: 301, 430, 316L, 304 2B stailess steel or galvalume (24 ga – 6” (152 mm) diameter; 20 ga – 42” (1067 mm) to 48” (1219 mm) diameter).
Continuous laser welding
Full range of accessories including elbows, fittings, guides and supports.

Weights and Clearances

GDPL4F						Linear Weight
I.D.		O.D.		Area		GDPL4F
in	mm	in	mm	in2	mm2	lb/ft	kg/m
6	152	14	356	28	18.2	14.6	21.8
8	203	16	406	50	32.4	17.7	26.3
10	254	18	457	79	50.7	20.7	30.8
12	305	20	508	113	73	23.8	35.4
14	356	22	559	154	99.3	26.8	39.9
16	406	24	610	201	129.7	29.9	44.4
18	457	26	660	254	164.2	32.9	49
20	508	28	711	314	202.7	35.9	53.5
22	559	30	762	380	245.2	39	58
24	610	32	813	452	291.9	42	62.5
26	660	34	864	531	342.5	45.1	67.1
28	711	36	914	616	397.3	48.1	71.6
30	762	38	965	707	456	51.2	76.1
32	813	40	1016	804	518.9	54.2	30.7
34	864	42	1067	908	585.8	57.3	35.2
36	914	44	1118	1018	656.7	60.3	89.7
38	965	46	1168	1134	731.7	63.3	94.3
40	1016	48	1219	1257	810.7	66.3	98.8
42	1067	50	1270	1385	893.8	83.3	124
44	1118	52	1321	1521	981	87	129.4
46	1168	54	1372	1662	1072.2	90.6	134.9
48	1219	56	1422	1810	1167.5	94.3	140.3

MINIMUM CLEARANCE AIR SPACE TO COMBUSTIBLE CONSTRUCTION
GDPL4F SERIES
Inside diameter	Clearance
6'' to 38''	0''

Listing

CHEMINÉE LINING.E inc. venting systems models GDP, GDPL, GDPL2F and GDPL4F are listed by Underwriters Laboratories, inc. (UL) under File MH26661 and tested in accordance with UL 1978 Standard for grease ducts. These requirements cover grease ducts and grease duct assemblies that are intended to be installed with less than or greater than 18″ clearance as specified in the Standard for Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment, NFPA 96 or the individual listing intended for installations where the duct passes through partitions or walls of combustible material or where the duct is located in proximity to combustible building construction.

GDP, GDPL, GDPL2F AND GDPL4F SERIES	Temperature	SIZE
Grease Duct	550°F continuous	6" to 48" I.D.

Applications

Grease duct models GDP, GDPL, GDPL2F and GDPL4F are suitable for use in installations using exhaust system components for the removal of smoke and grease laden vapors in commercial, industrial, institutional and similar type applications.
Models GDP, GDPL, GDPL2F and GDPL4F grease ducts are intended for use as complete systems.
They can be connected to hoods, grease extractors, upblast exhausters, in-line or utility fans used in restaurants, hotels and other food service applications. They can also serve as supply duct in make-up/exhaust type systems.
Installation of GDP, GDPL, GDPL2F and GDPL4F grease ducts is made in accordance with CHEMINÉE LINING. E inc. installation instructions manual and NFPA 96 “Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations”.
GDP, GDPL, GDPL2F and GDPL4F grease ducts are suitable for continuous operation at temperatures not exceeding 500°F (260°C).

CRITERIA	GREASE DUCT	BHA CHIMNEY	1400°F CHIMNEY
Application	Cooking appliances, Ventilation hoods, Restaurant grease ducts & Pizza oven exhausts	Low and high pressure steam boilers, Diesel and turbine exhausts & Building heating equipment	Industrial furnaces, Processing equipment, Kilns and ovens & Diesel and turbine exhausts
Continuous operating temperature 500°F	500°F	1000°F	1400°F
GDPL4F	YES	YES	YES