Air Amplifiers | McMaster-Carr

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Inlet Pipe Size

For Outlet Tube ID

For Use With

Flow Input to Output Ratio

Material

Flow Control Type

Maximum Output Pressure

Maximum Input Pressure

Overall Width

Output Flow Rate @ 90 psi

29.2 ft³/min

35 ft³/min to 65 ft³/min

37 ft³/min to 79 ft³/min

42 ft³/min

62 ft³/min

155 ft³/min

155 ft³/min to 250 ft³/min

200 ft³/min to 400 ft³/min

325 ft³/min

330 ft³/min to 520 ft³/min

380 ft³/min to 840 ft³/min

615 ft³/min

700 ft³/min to 1,200 ft³/min

Outlet Pipe Size

1/4

3/8

Pressure Input to Output Ratio

Tank Capacity

1.32 gal. to 2.64 gal.

4 gal. to 60 gal.

Inlet Gender

Female

Male

For Compressed Air Type

Inlet Thread Type

Overall Length

Minimum Input Pressure

For Ambient Air Inlet Tube ID

Maximum Temperature

Maximum Particle Size

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Minimum Output Pressure

REACH

DFARS Specialty Metals

Exempt

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23 Products

Compressed Air Flow Boosters

Adjustable

Fixed

Fixed with Flange

Create a high-flow air stream from your compressed air supply. Flow boosters draw in ambient air, which amplifies compressed air flow. To maximize performance and service life, install a filter inline before the booster to remove particles down to the maximum particle size. Use hose clamps (not included) to connect hose or duct to the inlet or outlet.

Adjustable boosters allow you to fine-tune the flow—rotate the knurled ring to change the amount of ambient air drawn into the booster.

Boosters with flange mount easily near your equipment.

	Input				Ambient Air Inlet		Outlet		Overall		Flange		Mounting Holes
Flow Input to Output Ratio	Flow Rate @ 90 psi	Pressure, psi	Output Flow Rate @ 90 psi	Max. Particle Size, µm	Connection Type	For Tube ID	Connection Type	For Tube ID	Lg.	Wd.	Ht.	Lg.	No. of	Dia.	Mounting Fasteners Included		Each
Adjustable
1/8 NPT Male Supply Inlet
1:6	13 cfm	5-150	35-65 cfm	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1"	__	__	__	__	__	00000000	000000
1:8	13 cfm	5-150	37-79 cfm	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1 1/8"	__	__	__	__	__	00000000	00000
1:12	25 cfm	5-150	155-250 cfm	20	Clamp On	1.125"	Clamp On	1.125"	2 5/8"	1 1/2"	__	__	__	__	__	00000000	000000
1/4 NPT Male Supply Inlet
1:15	28 cfm	5-150	200-400 cfm	20	Clamp On	1.5"	Clamp On	1.5"	3 1/4"	2"	__	__	__	__	__	00000000	000000
1:20	29 cfm	5-150	330-520 cfm	20	Clamp On	2"	Clamp On	2"	3 1/4"	2 1/2"	__	__	__	__	__	00000000	000000
1:22	40 cfm	5-150	380-840 cfm	20	Clamp On	2.5"	Clamp On	2.5"	4 5/8"	3"	__	__	__	__	__	00000000	000000
3/8 NPT Male Supply Inlet
1:25	51 cfm	5-150	700-1,200 cfm	20	Clamp On	3.5"	Clamp On	3.5"	5 1/4"	4"	__	__	__	__	__	00000000	000000
Fixed
1/8 NPT Female Supply Inlet
1:4	8 cfm	10-200	29.2 cfm	5	Clamp On	0.75"	Clamp On	0.75"	2 1/2"	1 3/8"	__	__	__	__	__	0000000	000000
1:4	8 cfm	10-200	29.2 cfm	5	Clamp On	1.33"	Clamp On	0.75"	2 1/8"	1 3/8"	__	__	__	__	__	0000000	00000
1:4	17 cfm	10-200	62 cfm	5	Clamp On	1.33"	Clamp On	0.5"	2 5/8"	1 3/8"	__	__	__	__	__	0000000	000000
Fixed with Flange
1/8 NPT Female Supply Inlet
1:10	6.5 cfm	5-150	42 cfm	20	Clamp On	0.98"	Clamp On	0.73"	2 3/16"	2 5/16"	1.3"	2.3"	2	0.2"	No	000000	000000
1/4 NPT Female Supply Inlet
1:15	11 cfm	5-150	155 cfm	20	Clamp On	1.5"	Clamp On	1.22"	2 3/4"	3"	1.9"	3"	2	0.27"	No	0000000	000000
3/8 NPT Female Supply Inlet
1:16	21 cfm	5-150	325 cfm	20	Clamp On	2.95"	Clamp On	2"	3 3/4"	4 1/8"	3.2"	4.1"	2	0.27"	No	0000000	000000
1/2 NPT Female Supply Inlet
1:17	42 cfm	5-150	615 cfm	20	Clamp On	4.92"	Clamp On	4"	7"	8 1/2"	5.9"	8.5"	2	0.53"	No	0000000	000000

Compressed Air Pressure Boosters

Ensure sufficient pressure to operate air-powered tools and machines. Pressure boosters compress the air supply, which increases air pressure. To maximize performance and service life, install a filter inline before the booster to remove particles down to the maximum particle size. Do not use boosters for tank capacities larger than specified.

Adjustable boosters have an integral regulator so you can fine-tune the output pressure. They come with pressure gauges on the inlet and outlet.

Boosters with 3/8 NPT female inlet and outlet require compressed air to operate—they have a drive inlet and a pilot inlet that control the booster.

Compressed Air Pressure Boosters

Adjustable Booster with
1/4 NPTF Female
Supply Inlet

Fixed Booster with
1/4 NPT Female
Supply Inlet

Fixed Booster with 3/8 NPT Female Supply Inlet

Input to Output Ratio		Pressure, psi							Overall			Mounting Holes
Pressure	Flow	Input	Output	For Tank Cap., gal.	Max. Particle Size, µm	No. of Inlets	Duty Cycle	Max. Temp., °F	Lg.	Wd.	Ht.	No. of	Dia.	Mounting Fasteners Included		Each
Adjustable
1/4 NPTF Female Supply Inlet and Outlet
1:2	2:1	14.5-145	29-290	1.32-2.64	5	1	__	122°	6"	5"	4 1/2"	4	0.22"	No	0000000	0000000
1:4	4:1	14.5-145	29-290	1.32-2.64	5	1	__	122°	6"	5"	4 1/2"	4	0.22"	Yes	0000000	000000
Fixed
1/4 NPT Female Supply Inlet and Outlet
1:2	2:1	10-100	20-200	0-5	40	1	4 Minutes On, 4 Minutes Off	Not Rated	7 1/2"	5 1/4"	4 1/2"	4	0.28"	No	0000000	00000000
1:4	4:1	10-100	40-400	0-5	40	1	4 Minutes On, 4 Minutes Off	Not Rated	7 1/2"	5 1/4"	4 1/2"	4	0.28"	No	0000000	00000000
3/8 NPT Female Supply Inlet and Outlet
1:2	2:1	25-150	30-300	4-60	40	1	30 Minutes On, 30 Minutes Off	180°	17"	8"	11"	4	0.38"	No	0000000	00000000
1:5	7:1	30-870	90-870	1-15	40	2	30 Minutes On, 30 Minutes Off	140°	24"	9"	9"	4	0.44"	No	0000000	00000000

Repair Kits

Repair Kit

Air Drive Repair Kit
For Pressure Input to Output Ratio	For Inlet Pipe Size	For Inlet Thread Type	Includes		Each
1:2, 1:4	1/4	NPT	Bearing, Nine O-Rings, Spring, Star Washer	00000000	0000000
Complete Repair Kit
1:2	1/4	NPT	Bearing, Cotter Pin, High-Pressure Seal, Star Washer, Thirteen O-Rings, Three Springs, Two Balls, Two Seat Balls	00000000	000000
1:4	1/4	NPT	Bearing, Cotter Pin, High-Pressure Seal, Star Washer, Thirteen O-Rings, Three Springs, Two Balls, Two Seat Balls	00000000	000000