18 3/4" Fans | McMaster-Carr

These blowers have an explosion-proof motor that is UL listed for hazardous locations. They also have an aluminum housing for spark resistance. These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting.

Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water. It is the responsibility of users in California to follow local energy efficiency regulations. Operating these blowers at a high airflow may violate these regulations.

With Round Outlet and Round Inlet

Image of Product. Front orientation. Blowers. Hazardous Location Spark-Resistant Blowers.

								Overall								Mounting
	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Outlet Dia.	Inlet Dia.	Wheel Dia.	Ht.	Wd.	Dp.	Current	Temp. Range, ° F	Housing Material	Hazardous Location Rating	Enclosure Rating	Fasteners Included	Hole Dia.		Each
120V AC/230V AC







				Single Phase—Hardwire

				1,045 ft³/min @ 1/4 in. H₂O	55 dBA @ 15 ft.	1,150	1/3	8"	8"	8 1/4"	18 3/4"	14 3/4"	15 3/8"	6.8 amp/3.4 amp	0 to 150	Aluminum	NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups F, G	IP44	No	7/16"	0000000	000000000

Portable Fume Exhausters

In addition to using the handle to carry these exhausters, you can mount them to a wall, bench, or floor. They remove fumes, vapors, and fine dust particles from your space. They are commonly used in welding, soldering, and other operations that create fumes. All have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments. They have a flexible hose with nozzle to capture fumes at the source and rubber pads on the base to reduce vibration.

Airflow @ Static Pressure—Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.

						Overall			Nozzle				Mounting
	Airflow @ SP	Volume (Sound) @ Distance	Power, hp	Inlet Dia.	Outlet Dia.	Ht.	Wd.	Dp.	Ht.	Wd.	Housing Material	Wheel Material	Fasteners Included	For Screw Size	Hole Dia.	No. of Holes	Hose Lg., ft.		Each
Totally Enclosed Motor Enclosure







				120V AC, Single Phase—Plug In

				280 ft³/min @ 1 1/2 in. H₂O 330 ft³/min @ 1/4 in. H₂O 345 ft³/min @ 0 in. H₂O	62 dBA @ 15 ft.	1/2	4"	4"	18 3/4"	17 1/2"	16"	4"	8"	Steel	Aluminum	No	3/8"	7/16"	4	10	0000000	000000000




						230V AC/460V AC, Three Phase—Hardwire

						280 ft³/min @ 1 1/2 in. H₂O 330 ft³/min @ 1/4 in. H₂O 345 ft³/min @ 0 in. H₂O	62 dBA @ 15 ft.	1/2	4"	4"	18 3/4"	17 1/2"	16"	4"	8"	Steel	Aluminum	No	3/8"	7/16"	4	10	0000000	00000000

Duct Kits

Single-Duct Kits for Exhausters with 4" Inlet Diameter—Single-duct kits (sold separately) maximize airflow at one fume collection point. They include a hose, a nozzle, and two clamps.

		Each
Single-Duct Kits for Exhausters with 4" Inlet Diameter	0000000	0000000

Spark-Resistant Blowers

These blowers have an aluminum housing for spark resistance. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and wet environments.

With Round Outlet and Round Inlet—Totally Enclosed Motor Enclosure

Image of Product. Front orientation. Blowers. Spark-Resistant Blowers.

								Overall						Mounting
	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Outlet Dia.	Inlet Dia.	Wheel Dia.	Ht.	Wd.	Dp.	Current	Temp. Range, ° F	Housing Material	Fasteners Included	Hole Dia.		Each
120V AC/230V AC







				Single Phase—Hardwire

				1,045 ft³/min @ 1/4 in. H₂O	55 dBA @ 15 ft.	1,150	1/3	8"	8"	8 1/4"	18 3/4"	14 3/4"	15 3/8"	7.4 amp/3.7 amp	0 to 150	Aluminum	No	7/16"	0000000	000000000