Galvanized Steel Dampers

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91 Products

Airflow Dampers

The simplest, most reliable way to regulate airflow in standard duct. Turn the lever to adjust the blade.

Gasketed Airflow Damper—The blade has a rubber gasket to prevent leaks better than other dampers.

Blade Airflow Damper—The most economical choice, these dampers slide into the end of duct. Drill a hole for the damper's bolt and remove the handle. Place the damper inside duct, insert the bolt through the hole, and reattach the handle.

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

							Galvanized Steel
	Duct Size	Dia.	OD	Overall Lg.	Ga.	Gasket Material		Each
Standard Airflow Damper







				Male

				4	—	3 3/4"	4 1/2"	20	—	17355K59	000000


				5	—	4 3/4"	4 1/2"	20	—	17355K51	00000
				6	—	5 3/4"	4 1/2"	20	—	17355K61	00000
				7	—	6 3/4"	4 1/2"	20	—	17355K53	00000
				8	—	7 3/4"	4 1/2"	20	—	17355K63	00000
				9	—	8 3/4"	4 1/2"	20	—	17355K55	00000
				10	—	9 3/4"	4 1/2"	20	—	17355K65	00000
				12	—	11 3/4"	4 1/2"	20	—	17355K67	00000
				14	—	13 3/4"	4 1/2"	20	—	17355K69	000000
				16	—	15 3/4"	4 1/2"	20	—	17355K71	000000
				18	—	17 3/4"	4 1/2"	20	—	17355K73	000000


				20	—	19 3/4"	4 1/2"	18	—	17355K75	000000
				22	—	21 3/4"	4 1/2"	18	—	17355K57	000000
				24	—	23 3/4"	4 1/2"	18	—	17355K76	000000


				Gasketed Airflow Damper







								Male

								4	—	3 7/8"	10"	20	Neoprene	2041K31	000000


								6	—	5 7/8"	10"	20	Neoprene	2041K32	000000
								8	—	7 7/8"	10"	20	Neoprene	2041K33	000000
								10	—	9 7/8"	10"	20	Neoprene	2041K34	000000
								12	—	11 7/8"	10"	20	Neoprene	2041K35	000000


								Blade Airflow Damper



										4	4"	—	—	28	—	3996K11	0000


										5	5"	—	—	28	—	3996K14	0000
										6	6"	—	—	28	—	3996K17	0000
										7	7"	—	—	28	—	3996K2	00000
										8	8"	—	—	28	—	3996K23	00000
										9	9"	—	—	26	—	3996K26	0000
										10	10"	—	—	26	—	3996K29	00000
										12	12"	—	—	26	—	3996K32	00000
										14	14"	—	—	24	—	3996K35	00000

Airflow Dampers for Quick-Disconnect Duct

Regulate airflow to sections of quick-disconnect duct. Often used in dust collection systems, these dampers attach with quick-release clamps. Turn the lever to adjust airflow.

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	Overall Lg.	Ga.		Each
3	3 3/16"	8"	22	1761K395	000000
4	3 15/16"	8"	22	1761K151	00000
5	4 15/16"	8"	22	1761K152	00000
6	6"	8"	22	1761K153	00000
7	7"	8"	22	1761K627	00000
8	8"	13"	22	1761K154	00000
9	9"	13"	22	1761K628	00000
10	10"	13"	22	1761K155	00000
12	12 1/8"	13"	20	1761K156	00000
14	14 1/8"	17"	20	1761K161	000000
16	16 1/8"	17"	20	1761K162	000000
18	18 1/8"	23"	20	1761K396	000000
20	20 1/8"	23"	20	1761K397	000000
22	22 1/8"	23"	20	1761K398	000000
24	24 1/16"	23"	20	1761K399	000000

Duct Clamps

Match clamps to your duct material.

	Galvanized Steel
Duct Size		Each
3	1761K103	000000
4	1761K22	00000
5	1761K23	00000
6	1761K24	00000
7	1761K603	00000
8	1761K137	00000
9	1761K604	00000
10	1761K138	00000
12	1761K139	00000
14	1761K145	00000
16	1761K146	00000
18	1761K101	00000
20	1761K102	00000
22	1761K333	00000
24	1761K334	00000

Automatic Airflow Dampers

Keep temperatures comfortable while saving energy. Control these dampers with a switch or thermostat so you’re only heating and cooling the areas that need it.

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

			Overall					Galvanized Steel
Duct Size	ID	OD	Ht.	Wd.	Electrical Connection Type	Voltage, V AC	Ga.		Each
5	5"	4 7/8"	9 1/4"	7"	Hardwire	24	24	1179N15	0000000
6	6"	5 7/8"	10 1/4"	8"	Hardwire	24	24	1179N16	000000
8	8"	7 7/8"	12 1/4"	10"	Hardwire	24	24	1179N18	000000
10	10"	9 7/8"	14 1/4"	12"	Hardwire	24	24	1179N21	000000
12	12"	11 7/8"	16 1/4"	14"	Hardwire	24	24	1179N22	000000
14	14"	13 7/8"	18 1/4"	16"	Hardwire	24	22	1179N24	000000
16	16"	15 7/8"	20 1/4"	18"	Hardwire	24	22	1179N26	000000
18	18"	17 7/8"	22 1/4"	20"	Hardwire	24	22	1179N28	000000

Duct Damper Handles

Pair with your own blade to create an economical damper for existing duct. These handles work with blades up to 0.022" thick to regulate airflow.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

	Galvanized Steel
For Max. Damper Blade Thk.		Each
0.022"	1786K21	00000

Airflow Dampers for Square Duct

Direct airflow to different zones in your facility or regulate the amount of outside air introduced to your system. Turn the lever on these dampers to adjust the blades.

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

For Duct		Overall					Galvanized Steel
Ht.	Wd.	Ht.	Wd.	Dp.	Ga.	Gasket Material		Each
12"	12"	11 3/4"	11 3/4"	5 1/2"	16	Vinyl Plastic	2041K12	0000000
14"	14"	13 3/4"	13 3/4"	5 1/2"	16	Vinyl Plastic	2041K13	000000
16"	16"	15 3/4"	15 3/4"	5 1/2"	16	Vinyl Plastic	2041K14	000000
24"	24"	23 3/4"	23 3/4"	5 1/2"	16	Vinyl Plastic	2041K22	000000
36"	36"	35 3/4"	35 3/4"	5 1/2"	16	Vinyl Plastic	2041K27	000000

Tight-Seal Spiral Duct and Fittings

Gasketed fittings prevent leaks between connections without the need for tape or other sealants. Duct has a continuous seam that reinforces it for strength and long life. The rigid construction keeps its shape, even against suction from dust collectors. Duct is smooth on the inside for efficient airflow. Because of its attractive look, spiral duct is often used for exposed heating and cooling systems.

Straight Collars with Airflow Damper

Add a branch of round duct from rectangular systems and control airflow with the damper. Cut a hole, install the collar, and connect a piece of tight-seal spiral round duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

Polyethylene Foam Gasket—The flange has an adhesive-backed gasket to bond the connection until you fasten with screws. The gasket also prevents leaks.

			Galvanized Steel with EPDM Gasket
Duct Size	OD	Bottom Gasket Material	Ga.		Each
6	5 7/8"	Polyethylene Foam	24	5078K121	000000
8	7 7/8"	Polyethylene Foam	24	5078K122	00000
10	9 7/8"	Polyethylene Foam	24	5078K123	00000
12	11 7/8"	Polyethylene Foam	24	5078K124	00000
14	13 7/8"	Polyethylene Foam	24	5078K125	00000
16	15 7/8"	Polyethylene Foam	24	5078K126	00000

Duct Fire Dampers

In case of a fire, these dampers shut automatically to stop airflow. They have a fusible link that melts at 165° F, releasing a spring to close the blade. Dampers meet UL 555 fire safety standards to help prevent the spread of fire for 1_1/2hours. They are undersized to fit inside duct.

For Round Duct

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

		Overall					Galvanized Steel
Duct Size	OD	Ht.	Wd.	Fire Safety Std.	Fusible Link Melting Temp., ° F	Ga.		Each
4	3 3/4"	6 3/4"	6 3/4"	UL 555	165	22	19215K26	0000000
6	5 3/4"	8 3/4"	8 3/4"	UL 555	165	22	19215K27	000000
8	7 3/4"	10 3/4"	10 3/4"	UL 555	165	22	19215K28	000000
10	9 3/4"	12 3/4"	12 3/4"	UL 555	165	22	19215K29	000000
12	11 3/4"	14 3/4"	14 3/4"	UL 555	165	22	19215K31	000000

Fusible Links

		Each
Replacement Fusible Link with 165° F Melting Temperature	19215K32	00000
Fusible Link with 212° F Melting Temperature	19215K96	0000
Fusible Link with 386° F Melting Temperature	19215K19	00000

For Square Duct

Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.

For Duct		Overall						Galvanized Steel
Ht.	Wd.	Ht.	Wd.	Dp.	Fire Safety Std.	Fusible Link Melting Temp., ° F	Ga.		Each
8"	8"	7 3/4"	7 3/4"	4 7/8"	UL 555	165	22	2263K29	000000
12"	12"	11 3/4"	11 3/4"	4 7/8"	UL 555	165	22	2263K88	00000
14"	14"	13 3/4"	13 3/4"	4 7/8"	UL 555	165	22	2263K91	00000
18"	18"	17 3/4"	17 3/4"	4 7/8"	UL 555	165	22	2263K93	000000
24"	24"	23 3/4"	23 3/4"	4 7/8"	UL 555	165	22	2263K97	000000

Fusible Links