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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.

1/4 NPTF Female
Supply Inlet

1/4 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 |

| For Pressure Input to Output Ratio | 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 | 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



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 |

























