Air Flow Intensifiers | McMaster-Carr

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Maximum Output Pressure

Maximum Pressure

Maximum Input Pressure

Pressure Input to Output Ratio

Flow Control Type

Inlet Pipe Size

For Use With

Flow Input to Output Ratio

Tank Capacity

1.32 gal. to 2.64 gal.

Material

For Compressed Air Type

Filtered

Nonlubricated

RoHS

Compliant

Compliant with Exemptions

Not Compliant

Outlet Pipe Size

1/4

3/8

Flow Adjustment Mechanism

For Outlet Tube ID

Overall Width

Minimum Input Pressure

Inlet Gender

Export Control Classification Number (ECCN)

Overall Length

Fitting Connection

Maximum Particle Size

5 μm

20 μm

40 μm

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Overall Height

23 Products

Compressed Air Pressure Boosters


Adjustable, 1/4 NPTF Female Supply Inlet and Outlet	Fixed, 1/4 NPT Female Supply Inlet and Outlet	Fixed, 3/8 NPT Female Supply Inlet and Outlet

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

3/8 NPT Female Supply 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.

	Input to Output Ratio		Pressure, psi							Overall			Mounting Holes
	Pressure	Flow	Input	Output	For Tank Cap. Range, 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 to 145	29 to 290	1.32 to 2.64	5	1	—	122	6"	5"	4 1/2"	4	0.22"	No	6828K75	0000000


				1:4	4:1	14.5 to 145	29 to 290	1.32 to 2.64	5	1	—	122	6"	5"	4 1/2"	4	0.22"	Yes	6828K76	000000


				Fixed







								1/4 NPT Female Supply Inlet and Outlet

								1:2	2:1	10 to 100	20 to 200	0 to 5	40	1	4 Minutes On, 4 Minutes Off	Not Rated	7 1/2"	5 1/4"	4 1/2"	4	0.28"	No	3680K41	00000000


								1:4	4:1	10 to 100	40 to 400	0 to 5	40	1	4 Minutes On, 4 Minutes Off	Not Rated	7 1/2"	5 1/4"	4 1/2"	4	0.28"	No	3680K44	00000000




										3/8 NPT Female Supply Inlet and Outlet

										1:2	2:1	25 to 150	30 to 300	4 to 60	40	1	30 Minutes On, 30 Minutes Off	180	17"	8"	11"	4	0.38"	No	9887K11	00000000


										1:5	7:1	30 to 870	90 to 870	1 to 15	40	2	30 Minutes On, 30 Minutes Off	140	24"	9"	9"	4	0.44"	No	9887K14	00000000

Air Booster Service Kits

Repair Kit

	For Inlet Pipe Size	For Inlet Thread Type	Includes		Each
Air-Drive Repair Kit



	1:2, 1:4	1/4	NPT	Bearing, Nine O-Rings, Spring, Star Washer	3680K312	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	3680K411	000000


			1:4	1/4	NPT	Bearing, Cotter Pin, High-Pressure Seal, Star Washer, Thirteen O-Rings, Three Springs, Two Balls, Two Seat Balls	3680K441	000000

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. Boosters with flange mount easily near your equipment.

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

		Input				Ambient Air Inlet		Outlet		Overall		Flange		Mounting Holes
	Flow Input to Output Ratio	Flow Rate @ 90 psi, ft³/min	Pressure, psi	Output Flow Rate @ 90 psi, ft³/min	Max. Particle Size, μm	Connection	For Tube ID	Connection	Outlet Tube OD	Lg.	Wd.	Ht.	Lg.	No. of	Dia.	Mounting Fasteners Included		Each
Adjustable







				1/8 NPT Male Inlet

				1:6	13	5 to 150	35 to 65	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1"	—	—	—	—	—	19075K93	000000


				1:8	13	5 to 150	37 to 79	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1 1/8"	—	—	—	—	—	19075K94	00000
				1:12	25	5 to 150	155 to 250	20	Clamp On	1.125"	Clamp On	1.125"	2 5/8"	1 1/2"	—	—	—	—	—	19075K95	000000




						1/4 NPT Male Inlet

						1:15	28	5 to 150	200 to 400	20	Clamp On	1.5"	Clamp On	1.5"	3 1/4"	2"	—	—	—	—	—	19075K86	000000


						1:20	29	5 to 150	330 to 520	20	Clamp On	2"	Clamp On	2"	3 1/4"	2 1/2"	—	—	—	—	—	19075K87	000000
						1:22	40	5 to 150	380 to 840	20	Clamp On	2.5"	Clamp On	2.5"	4 5/8"	3"	—	—	—	—	—	19075K88	000000




								3/8 NPT Male Inlet

								1:25	51	5 to 150	700 to 1,200	20	Clamp On	3.5"	Clamp On	3.5"	5 1/4"	4"	—	—	—	—	—	19075K89	000000


								Fixed







												1/8 NPT Female Inlet

												1:4	8	10 to 200	29.2	5	Clamp On	0.75"	Clamp On	0.75"	2 1/2"	1 3/8"	—	—	—	—	—	5205K28	000000


												1:4	8	10 to 200	29.2	5	Clamp On	1.33"	Clamp On	0.75"	2 1/8"	1 3/8"	—	—	—	—	—	5205K27	000000
												1:4	17	10 to 200	62	5	Clamp On	1.33"	Clamp On	0.5"	2 5/8"	1 3/8"	—	—	—	—	—	5205K29	000000
												1:10	6.5	5 to 150	42	20	Clamp On	0.98"	Clamp On	0.73"	2 3/16"	2 5/16"	1.3"	2.3"	2	0.2"	No	5571K9	000000




														1/4 NPT Female Inlet

														1:15	11	5 to 150	155	20	Clamp On	1.5"	Clamp On	1.22"	2 3/4"	3"	1.9"	3"	2	0.27"	No	5571K11	000000




																3/8 NPT Female Inlet

																1:16	21	5 to 150	325	20	Clamp On	2.95"	Clamp On	2"	3 3/4"	4 1/8"	3.2"	4.1"	2	0.27"	No	5571K12	000000




																1/2 NPT Female Inlet

		1:17	42													5 to 150	615	20	Clamp On	4.92"	Clamp On	4"	7"	8 1/2"	5.9"	8.5"	2	0.53"	No	5571K13	000000