E6951 Blowers | McMaster-Carr

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Voltage

Maximum Flow Rate @ Pressure

Outlet Pipe Size

Power

Hazardous Location Protection Type

Electrical Phase

Inlet Pipe Size

Maximum Pressure

Less than 100 in. H₂O

100 in. H₂O to 149 in. H₂O

150 in. H₂O to 199 in. H₂O

200 in. H₂O to 999 in. H₂O

Minimum Temperature

Overall Width

Power Source

Airflow @ Static Pressure

6,150 ft³/min @ 0 in. H₂O

6,900 ft³/min @ 0 in. H₂O

9,350 ft³/min @ 0 in. H₂O

9,800 ft³/min @ 0 in. H₂O

21,000 ft³/min @ 0 in. H₂O

24,100 ft³/min @ 0 in. H₂O

25,300 ft³/min @ 0 in. H₂O

27,800 ft³/min @ 0 in. H₂O

36,200 ft³/min @ 0 in. H₂O

36,700 ft³/min @ 0 in. H₂O

2,950 ft³/min @ 1/2 in. H₂O

3,530 ft³/min @ 1/2 in. H₂O

3,900 ft³/min @ 1/2 in. H₂O

5,900 ft³/min @ 1/2 in. H₂O

15,700 ft³/min @ 1/2 in. H₂O

Stage

Vacuum Rating

Inlet Thread Type

Overall Height

Blade Diameter

Outlet Thread Type

Overall Length

Housing Material

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

UL File Number

Volume (Sound)

27 Products

About Exhaust Fans

About Sound Levels

Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.

About Air Compressors

With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged.

For technical drawings and 3-D models, click on a part number.

Direct-Drive Exhaust Fans

Fans
					Overall									Mounting Bases
Blade Dia.	Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lbs.	Max. Ambient Temp., °F	Housing Material	Environmental Rating		Each		Each
Totally Enclosed Motor Enclosure
120/240V AC, Single Phase—Hardwire
24"	3,900 cfm @ 1/2 in. of H₂O 6,900 cfm @ 0 in. of H₂O	75 dBA @ 5 ft.	1,150	3/4	33"	25"	36"	340	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	000000000	0000000	0000000
30"	5,900 cfm @ 1/2 in. of H₂O 9,350 cfm @ 0 in. of H₂O	72 dBA @ 5 ft.	1,150	1	39"	28"	42"	370	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
240/460V AC, Three Phase—Hardwire
36"	15,700 cfm @ 1/2 in. of H₂O 21,000 cfm @ 0 in. of H₂O	79 dBA @ 5 ft.	1,150	3	45"	31"	48"	480	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
42"	19,400 cfm @ 1/2 in. of H₂O 25,300 cfm @ 0 in. of H₂O	80 dBA @ 5 ft.	1,150	3	51"	34"	54"	520	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
48"	31,600 cfm @ 1/2 in. of H₂O 36,200 cfm @ 0 in. of H₂O	89 dBA @ 5 ft.	1,150	7 1/2	57"	37"	60"	670	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000

Belt-Drive Exhaust Fans

Fans
					Overall									Mounting Bases
Blade Dia.	Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lbs.	Max. Ambient Temp., °F	Housing Material	Environmental Rating		Each		Each
Totally Enclosed Motor Enclosure
120/240V AC, Single Phase—Hardwire
24"	3,530 cfm @ 1/2 in. of H₂O 6,150 cfm @ 0 in. of H₂O	71 dBA @ 5 ft.	1,750	3/4	33"	25"	36"	340	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	000000000	0000000	0000000
30"	2,950 cfm @ 1/2 in. of H₂O 9,800 cfm @ 0 in. of H₂O	68 dBA @ 5 ft.	1,750	3/4	39"	28"	42"	410	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
240/460V AC, Three Phase—Hardwire
36"	20,200 cfm @ 1/2 in. of H₂O 24,100 cfm @ 0 in. of H₂O	82 dBA @ 5 ft.	1,750	5	45"	31"	48"	590	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
42"	22,400 cfm @ 1/2 in. of H₂O 27,800 cfm @ 0 in. of H₂O	78 dBA @ 5 ft.	1,750	5	51"	34"	54"	720	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000
48"	28,600 cfm @ 1/2 in. of H₂O 36,700 cfm @ 0 in. of H₂O	80 dBA @ 5 ft.	1,750	5	57"	37"	60"	840	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	00000000	0000000	000000

Hazardous Location Exhaust Fans

These fans have a motor that is UL listed for hazardous environments. Use them to draw stagnant and humid air out of a room or area.

Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged. They come with collars, so you can connect these fans to a louver.

For technical drawings and 3-D models, click on a part number.

							Overall
Blade Dia.	Airflow, cfm	Volume	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Housing Material	Blade Material	Environmental Rating	Includes		Each
120/230V AC, Single Phase—Hardwire
30"	9,840	71 dBA @ 10 ft.	Belt	1,725	1	3/4	34 3/4"	34 3/4"	30"	Steel	Aluminum	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	0000000	000000000
36"	11,000	72 dBA @ 10 ft.	Belt	1,725	1	3/4	40 3/4"	40 3/4"	30"	Steel	Aluminum	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	0000000	00000000
42"	14,600	74 dBA @ 10 ft.	Belt	1,725	1	3/4	46 3/4"	46 3/4"	30"	Steel	Aluminum	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	0000000	00000000
48"	19,100	70 dBA @ 10 ft.	Belt	1,725	1	3/4	52 3/4"	52 3/4"	30"	Steel	Aluminum	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	0000000	00000000

High-Flow Low-Pressure Hazardous Location Compressed Air Blowers

Safely produce high-flow compressed air with low pressure or vacuum in environments with flammable gases and combustible dust, such as propane and carbon-based dust. These blowers have an explosion-proof motor and are UL listed for use in hazardous locations. Also known as regenerative blowers, they are commonly used to operate pump drives, lift tables, and conveying systems. They can also be used for drying, exhausting, and aerating.

For technical drawings and 3-D models, click on a part number.

Single Stage

						Overall				Pipe Size
Max. Pressure	Max. Flow Rate	Vacuum Rating	hp	Full Load Current	Vol., dBA	Lg.	Wd.	Ht.	Temp. Range, °F	Inlet	Outlet	Environmental Rating		Each
Three Phase, 208V AC/230V AC/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
2 psi 50 in. of H₂O	556 cfm @ 0 psi	3.7 in. of Hg 50 in. of H₂O	10	24.3 A @ 208 V AC 22.4 A @ 230 V AC 11.2 A @ 460 V AC	81	25"	20"	22"	5° to 100°	4	4	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	000000000
2 psi 60 in. of H₂O	471 cfm @ 0 psi	4.4 in. of Hg 60 in. of H₂O	10	24.3 A @ 208 V AC 22.4 A @ 230 V AC 11.2 A @ 460 V AC	81	25"	19"	22"	5° to 100°	4	4	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000
2 psi 68 in. of H₂O	381 cfm @ 0 psi	5 in. of Hg 68 in. of H₂O	7 1/2	18.9 A @ 208 V AC 17.8 A @ 230 V AC 8.9 A @ 460 V AC	80	23"	18"	19"	5° to 100°	3	3	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000
4 psi 116 in. of H₂O	294 cfm @ 0 psi	8.8 in. of Hg 116 in. of H₂O	7 1/2	18.9 A @ 208 V AC 17.8 A @ 230 V AC 8.9 A @ 460 V AC	80	23"	16"	19"	5° to 100°	3	3	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000

Two Stage

						Overall				Pipe Size
Max. Pressure	Max. Flow Rate	Vacuum Rating	hp	Full Load Current	Vol., dBA	Lg.	Wd.	Ht.	Temp. Range, °F	Inlet	Outlet	Environmental Rating		Each
Three Phase, 208V AC/230V AC/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
2 psi 115 in. of H₂O	274 cfm @ 0 psi	8.5 in. of Hg 115 in. of H₂O	10	24.3 A @ 208 V AC 22.4 A @ 230 V AC 11.2 A @ 460 V AC	81	27"	20"	22"	5° to 100°	4	4	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	000000000
3 psi 110 in. of H₂O	220 cfm @ 0 psi	8.1 in. of Hg 110 in. of H₂O	7 1/2	18.9 A @ 208 V AC 17.8 A @ 230 V AC 8.9 A @ 460 V AC	78	27"	19"	22"	5° to 100°	4	4	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000
5 psi 150 in. of H₂O	167 cfm @ 0 psi	11 in. of Hg 150 in. of H₂O	7 1/2	18.9 A @ 208 V AC 17.8 A @ 230 V AC 8.9 A @ 460 V AC	77	23"	18"	19"	5° to 100°	2	2	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000
8 psi 240 in. of H₂O	128 cfm @ 0 psi	11.9 in. of Hg 240 in. of H₂O	7 1/2	18.9 A @ 208 V AC 17.8 A @ 230 V AC 8.9 A @ 460 V AC	75	27"	16"	19"	5° to 100°	2	2	NEC Class I Division 1 Group D; NEC Class II Division 2 Groups F, G	0000000	00000000

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About Exhaust Fans

About Sound Levels

About Air Compressors

Hazardous Location Upblast Roof-Mount Exhaust Fans

Hazardous Location Exhaust Fans

High-Flow Low-Pressure Hazardous Location Compressed Air Blowers