Pressure Amplifiers | 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.

4 gal. to 60 gal.

For Compressed Air Type

Outlet Pipe Size

Material

Overall Width

RoHS

Compliant with Exemptions

Overall Height

Export Control Classification Number (ECCN)

EAR99

Minimum Input Pressure

Inlet Thread Type

Overall Length

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

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Maximum Flow Rate @ Pressure

Outlet Thread Type

Maximum Temperature

Minimum Output Pressure

23 Products

About Air Preparation

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

Pilot-Air-Controlled Compressed Air Regulators

Acetal Plastic

Aluminum

Control hard-to-reach regulators without needing direct access. Instead of a knob, these regulators use a pilot signal from a regulator installed in an accessible location—often a control system—to adjust pressure remotely. As the input signal increases, the output pressure increases within the regulating range. Install them in your air line after filters.

Regulators with 1:2, 1:3, and 1:6 air signal-to-outlet ratios boost the air pressure from your main line. For example, a 1:3 regulator takes 20 psi from your programmable logic controller (PLC) or transducer and boosts it to the 60 psi your actuator needs.

Regulators
	Pipe Size					Air Pilot					Gauge Port			Overall								Mounting Brackets
Air Pilot Signal to Outlet Ratio	Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Max. Air Pilot Signal Pressure, psi	Pipe Size	Thread Size	Thread Type	Gender	Gauge Included	Pipe Size	Thread Type	Gender	Wd.	Ht.	Exhaust Air Flow, scfm	Max. Temp., °F	Regulating Accuracy	Pressure Regulating Range, psi		Each		Each
Acetal Plastic Housing—NPT Female Inlet and Outlet
1:1	1/8	1/8	53 scfm @ 100 psi	145	217	__	M5	Metric	Female	No	1/8	BSPP	Female	1 5/8"	2 1/2"	2.5	120°	±2%	0-203	0000000	0000000	000000	00
1:1	1/4	1/4	99 scfm @ 100 psi	145	217	__	M5	Metric	Female	No	1/8	BSPP	Female	1 5/8"	2 1/2"	2.5	120°	±2%	0-203	0000000	000000	000000	00
1:1	3/8	3/8	120 scfm @ 100 psi	145	217	__	M5	Metric	Female	No	1/8	BSPP	Female	1 5/8"	2 1/2"	2.5	120°	±2%	0-203	0000000	000000	000000	00
1:1	1/2	1/2	240 scfm @ 100 psi	145	188	__	M5	Metric	Female	No	1/4	BSPP	Female	2 3/8"	3 3/16"	3.5	120°	±2%	0-175	0000000	000000	000000	00
1:1	3/4	3/4	272 scfm @ 100 psi	145	188	__	M5	Metric	Female	No	1/4	BSPP	Female	2 3/8"	3 3/16"	3.5	120°	±2%	0-175	0000000	000000	000000	00
1:1	1	1	272 scfm @ 100 psi	145	188	__	M5	Metric	Female	No	1/4	BSPP	Female	2 3/8"	3 3/16"	3.5	120°	±2%	0-175	0000000	000000	000000	00
Aluminum Housing—NPT Female Inlet and Outlet
1:1	1/4	1/4	50 scfm @ 100 psi	250	150	1/4	__	NPT	Female	No	1/4	NPT	Female	3"	4"	15	160°	±1%	0-150	0000000	000000	000000	00000
1:1	3/8	3/8	50 scfm @ 100 psi	250	150	1/4	__	NPT	Female	No	1/4	NPT	Female	3"	4"	15	160°	±1%	0-150	0000000	000000	000000	0000
1:1	3/4	3/4	560 scfm @ 100 psi	254	250	1/8	__	BSPP	Female	No	1/8	NPT	Female	3 3/4"	4 3/16"	Not Rated	140°	±3%	0-254	0000000	000000	000000	00
1:1	1	1	560 scfm @ 100 psi	254	250	1/8	__	BSPP	Female	No	1/8	NPT	Female	3 3/4"	4 3/16"	Not Rated	140°	±3%	0-254	0000000	000000	000000	00
1:2	1/4	1/4	50 scfm @ 100 psi	250	75	1/4	__	NPT	Female	No	1/4	NPT	Female	3"	4"	15	160°	±1%	0-150	0000000	000000	000000	0000
1:3	1/4	1/4	50 scfm @ 100 psi	250	50	1/4	__	NPT	Female	No	1/4	NPT	Female	3"	4"	15	160°	±1%	0-150	0000000	000000	000000	0000
1:6	1/4	1/4	50 scfm @ 100 psi	250	25	1/4	__	NPT	Female	No	1/4	NPT	Female	3"	4"	10	160°	±2%	0-150	0000000	000000	000000	0000