Air Blowers For Air Knives

Also known as regenerative blowers, use these to produce high-flow compressed air with low pressure or vacuum to operate pump drives, lift tables, and conveying systems. Compressed air blowers are also used for drying, exhausting, and aeration.

Air circulates inside the blower housing to compress air, which generates pressure or vacuum. Single-stage blowers circulate air once and then exhaust. Two-stage blowers circulate air twice and then exhaust, creating higher pressure or vacuum than single-stage blowers with the same horsepower.

Inverter-rated blowers have a motor that can run at slow speeds without overheating, so they can be used with a motor speed control (variable frequency drive).

Single Stage

Single Stage Blower

Blowers
						Overall				Pipe Size				Air-Intake Filters		Relief Valves
Maximum Pressure	Max. Flow Rate @ psi	Vacuum Rating	hp	Full Load Current	Vol.	Lg.	Wd.	Ht.	Temp. Range, °F	Inlet	Outlet		Each		Each		Each
Single Phase, 120/208/230V AC
NPT Female Inlet and Outlet
1 psi 29 in. of H₂O	27 cfm @ 0	1.9 in. of Hg 27 in. of H₂O	1/8	2.3 A @ 115 V AC 1.2 A @ 208 V AC 1.2 A @ 230 V AC	57 dBA	9"	8"	9"	32° to 100°	1	1	0000000	0000000	00000000	0000000	00000000	0000000
1 psi 39 in. of H₂O	42 cfm @ 0	2.6 in. of Hg 35 in. of H₂O	1/3	3.8 A @ 115 V AC 2.0 A @ 208 V AC 1.9 A @ 230 V AC	63 dBA	10"	9"	9"	32° to 100°	1	1	0000000	00000000	00000000	000000	00000000	000000
1 psi 52 in. of H₂O	156 cfm @ 0	3.8 in. of Hg 51 in. of H₂O	2	19.7 A @ 115 V AC 10.6 A @ 208 V AC 9.9 A @ 230 V AC	71 dB	14"	13"	14"	5° to 100°	2	2	0000000	00000000	000000	00	0000000	000000
2 psi 42 in. of H₂O	52 cfm @ 0	3.0 in of Hg 40 in. of H₂O	1/2	6.0 A @ 115 V AC 3.2 A @ 208 V AC 3.0 A @ 230 V AC	68 dBA	13"	10"	10"	32° to 100°	1 1/4	1 1/4	0000000	00000000	00000000	000000	00000000	000000
2 psi 52 in. of H₂O	92 cfm @ 0	3.5 in. of Hg 48 in. of H₂O	1	9.8 A @ 115 V AC 5.2 A @ 208 V AC 4.9 A @ 230 V AC	68 dBA	13"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
2 psi 65 in. of H₂O	127 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1 1/2	17.5 A @ 115 V AC 10.0 A @ 208 V AC 9.0 A @ 230 V AC	74 dBA	16"	13"	14"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
Single Phase, 120/230V AC
BSPP Female Inlet and Outlet
2 psi 56 in. of H₂O	57 cfm @ 0	3.8 in. of Hg 52 in. of H₂O	1/2	6.0 A @ 115 V AC 3.0 A @ 230 V AC	56 dBA	10"	10"	10"	5° to 100°	1 1/4	1 1/4	0000000	00000000	000000	00	000000	00
3 psi 76 in. of H₂O	102 cfm @ 0	5.3 in. of Hg 72 in. of H₂O	1 1/2	14.0 A @ 115 V AC 7.0 A @ 230 V AC	64 dBA	12"	11"	12"	5° to 100°	1 1/2	1 1/2	0000000	00000000	000000	00	000000	00
NPT Female Inlet and Outlet
3 psi 72 in. of H₂O	148 cfm @ 0	5.3 in. of Hg 72 in. of H₂O	2 1/4	24.0 A @ 115 V AC 12.0 A @ 230 V AC	70 dBA	14"	13"	13"	5° to 100°	2	2	0000000	00000000	000000	00	000000	00
Three Phase, 190/230/380/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
2 psi 56 in. of H₂O	103 cfm @ 0	4.1 in. of Hg 56 in. of H₂O	1	4.4 A @ 190 V AC 3.7 A @ 230 V AC 2.2 A @ 380 V AC 2.1 A @ 460 V AC	64 dBA	11"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	00000000	000000	00	000000	00
3 psi 79 in. of H₂O	150 cfm @ 0	6.5 in. of Hg 88 in. of H₂O	2 3/4	7.5 A @ 190 V AC 7.3 A @ 230 V AC 4.3 A @ 380 V AC 4.4 A @ 460 V AC	70 dBA	14"	13"	15"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
3 psi 92 in. of H₂O	221 cfm @ 0	7.1 in. of Hg 96 in. of H₂O	4 1/2	12.5 A @ 190 V AC 12.6 A @ 230 V AC 7.2 A @ 380 V AC 7.3 A @ 460 V AC	72 dBA	15"	15"	17"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
4 psi 116 in. of H₂O	150 cfm @ 0	7.7 in. of Hg 104 in. of H₂O	3 1/4	9.7 A @ 190 V AC 10.3 A @ 230 V AC 5.6 A @ 380 V AC 6.0 A @ 460 V AC	70 dBA	14"	13"	15"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
Three Phase, 208/230/460V AC
NPT Female Inlet and Outlet
2 psi 43 in. of H₂O	53 cfm @ 0	2.9 in. of Hg 40 in. of H₂O	1/2	2.0 A @ 208 V AC 2.0 A @ 230 V AC 1.0 A @ 460 V AC	68 dBA	11"	10"	10"	32° to 100°	1 1/4	1 1/4	0000000	00000000	00000000	000000	00000000	000000
2 psi 52 in. of H₂O	92 cfm @ 0	3.5 in. of Hg 48 in. of H₂O	1	3.4 A @ 208 V AC 3.2 A @ 230 V AC 1.6 A @ 460 V AC	68 dBA	13"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
2 psi 65 in. of H₂O	127 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1 1/2	5.1 A @ 208 V AC 4.9 A @ 230 V AC 2.5 A @ 460 V AC	74 dBA	14"	13"	14"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
Three Phase, 208/230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
1 psi 52 in. of H₂O	156 cfm @ 0	3.8 in. of Hg 51 in. of H₂O	2	5.7 A @ 208 V AC 5.7 A @ 230 V AC 2.8 A @ 460 V AC	71 dB	14"	13"	14"	5° to 100°	2	2	0000000	00000000	000000	00	0000000	000000
2 psi 80 in. of H₂O	156 cfm @ 0	6.6 in. of Hg 89 in. of H₂O	3	8.2 A @ 208 V AC 8.3 A @ 230 V AC 4.1 A @ 460 V AC	71 dB	14"	13"	14"	5° to 100°	2	2	0000000	00000000	000000	00	0000000	000000
3 psi 110 in. of H₂O	216 cfm @ 0	8.1 in. of Hg 110 in. of H₂O	5 1/2	14.6 A @ 208 V AC 15.1 A @ 230 V AC 7.5 A @ 460 V AC	74 dB	15"	15"	15"	5° to 100°	2	2	0000000	00000000	000000	00	0000000	000000
4 psi 105 in. of H₂O	207 cfm @ 0	6.5 in. of Hg 88 in. of H₂O	5	13.0 A @ 208 V AC 12.0 A @ 230 V AC 6.0 A @ 460 V AC	72 dBA	19"	15"	15"	32° to 100°	2	2	0000000	00000000	00000000	000000	00000000	000000
4 psi 110 in. of H₂O	265 cfm @ 0	6.6 in. of Hg 90 in. of H₂O	6	16.0 A @ 208 V AC 15.0 A @ 230 V AC 7.5 A @ 460 V AC	79 dBA	17"	17"	18"	32° to 100°	2	2	0000000	00000000	00000000	000000	00000000	000000
4 psi 110 in. of H₂O	307 cfm @ 0	8.9 in. of Hg 121 in. of H₂O	7 1/2	19.8 A @ 208 V AC 19.5 A @ 230 V AC 9.7 A @ 460 V AC	75 dBA	22"	18"	19"	5° to 100°	3	3	0000000	00000000	000000	00	0000000	000000
5 psi 125 in. of H₂O	420 cfm @ 0	8.1 in. of Hg 110 in. of H₂O	10	35.0 A @ 208 V AC 29.5 A @ 230 V AC 15.0 A @ 460 V AC	78 dBA	22"	18"	20"	32° to 100°	2 1/2	2 1/2	0000000	00000000	00000000	000000	00000000	000000
Three Phase, 220/275/380/480V AC (Inverter Rated)
BSPP Female Inlet and Outlet
2 psi 64 in. of H₂O	57 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1/2	2.6 A @ 200 V AC 2.6 A @ 275 V AC 1.5 A @ 380 V AC 1.5 A @ 480 V AC	56 dBA	10"	10"	10"	5° to 100°	1 1/4	1 1/4	0000000	00000000	000000	00	000000	00
Three Phase, 230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
4 psi 105 in. of H₂O	795 cfm @ 0	7.0 in. of Hg 95 in. of H₂O	18	52.0 A @ 230 V AC 26.0 A @ 460 V AC	79 dBA	29"	18"	20"	32° to 100°	2 1/2	4	0000000	00000000	00000000	000000	00000000	00000000

Two Stage

Two Stage Blower

Blowers
						Overall				Pipe Size				Relief Valves
Maximum Pressure	Max. Flow Rate @ psi	Vacuum Rating	hp	Full Load Current	Vol.	Lg.	Wd.	Ht.	Temp. Range, °F	Inlet	Outlet		Each		Each
Single Phase, 120/208/230V AC
NPT Female Inlet and Outlet
3 psi 98 in. of H₂O	35 cfm @ 0	7.2 in. of Hg 97 in. of H₂O	3/4	8.3 A @ 115 V AC 4.1 A @ 208 V AC 4.2 A @ 230 V AC	64 dB	14"	10"	11"	5° to 100°	3/4	3/4	0000000	000000000	0000000	0000000
4 psi 120 in. of H₂O	35 cfm @ 0	8.1 in. of Hg 110 in. of H₂O	1	9.4 A @ 115 V AC 5.5 A @ 208 V AC 5.0 A @ 230 V AC	64 dB	16"	10"	11"	5° to 100°	3/4	3/4	0000000	00000000	0000000	000000
5 psi 140 in. of H₂O	65 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	2	19.7 A @ 115 V AC 10.6 A @ 208 V AC 9.9 A @ 230 V AC	72 dB	15"	13"	14"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
5 psi 141 in. of H₂O	81 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	3	29.4 A @ 115 V AC 16.6 A @ 208 V AC 14.8 A @ 230 V AC	73 dB	15"	14"	15"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
5 psi 161 in. of H₂O	41 cfm @ 0	10.3 in. of Hg 140 in. of H₂O	1 1/2	14.6 A @ 115 V AC 7.6 A @ 208 V AC 7.3 A @ 230 V AC	69 dB	14"	11"	12"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
Three Phase, 208/230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
3 psi 98 in. of H₂O	35 cfm @ 0	7.2 in. of Hg 97 in. of H₂O	3/4	2.3 A @ 208 V AC 2.2 A @ 230 V AC 1.3 A @ 460 V AC	64 dB	14"	10"	11"	5° to 100°	3/4	3/4	0000000	00000000	0000000	000000
4 psi 120 in. of H₂O	35 cfm @ 0	8.1 in. of Hg 110 in. of H₂O	1	2.9 A @ 208 V AC 2.9 A @ 230 V AC 1.4 A @ 460 V AC	64 dB	16"	10"	11"	5° to 100°	3/4	3/4	0000000	00000000	0000000	000000
5 psi 140 in. of H₂O	65 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	2	5.8 A @ 208 V AC 5.2 A @ 230 V AC 2.8 A @ 460 V AC	72 dBA	16"	13"	14"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
5 psi 140 in. of H₂O	147 cfm @ 0	11.8 in. of Hg 160 in. of H₂O	5 1/2	14.6 A @ 208 V AC 15.1 A @ 230 V AC 7.5 A @ 460 V AC	77 dBA	17"	18"	19"	5° to 100°	2	2	0000000	00000000	0000000	000000
5 psi 141 in. of H₂O	81 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	3	8.3 A @ 208 V AC 7.4 A @ 230 V AC 4.0 A @ 460 V AC	73 dBA	16"	14"	15"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
5 psi 161 in. of H₂O	41 cfm @ 0	10.3 in. of Hg 140 in. of H₂O	1 1/2	4.3 A @ 208 V AC 4.3 A @ 230 V AC 2.1 A @ 460 V AC	69 dB	14"	11"	12"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
6 psi 191 in. of H₂O	65 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	3	8.2 A @ 208 V AC 8.3 A @ 230 V AC 4.1 A @ 460 V AC	73 dB	15"	13"	14"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
7 psi 201 in. of H₂O	81 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	4	10.9 A @ 208 V AC 11.1 A @ 230 V AC 5.5 A @ 460 V AC	73 dB	15"	14"	15"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000
7 psi 200 in. of H₂O	177 cfm @ 0	13.3 in. of Hg 180 in. of H₂O	10	26.1 A @ 208 V AC 25.0 A @ 230 V AC 12.5 A @ 460 V AC	78 dBA	19 1/2"	19"	20"	5° to 100°	2	2	0000000	00000000	0000000	000000
8 psi 220 in. of H₂O	147 cfm @ 0	13.3 in. of Hg 180 in. of H₂O	7 1/2	19.8 A @ 208 V AC 19.5 A @ 230 V AC 9.7 A @ 460 V AC	78 dBA	18"	18"	19"	5° to 100°	2	2	0000000	00000000	0000000	000000

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.

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