Airtac GAR Air Regulator GAR50020L
The AirTAC Airtac GAR Air Regulator GAR50020L is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.4 MPa range, with 3/4" ports and a built-in circular pressure gauge. It regulates pressure only — it does not filter the air or remove water.
- TypeAir regulator
- Port size3/4"
- Pressure range0.05 - 0.4 MPa
- RegulationLower pressure
- GaugeCircular
- Reflux valveNo
- Max pressure1.0 MPa
- Weight580 g
About the Airtac GAR Air Regulator GAR50020L
The GAR50020L is an air pressure regulator that takes a higher supply pressure and holds a steady, lower downstream pressure you set with its knob and read on the fitted circular gauge. It does not filter or clean the air, and it has no drain bowl or filter element; it only regulates pressure.
This lower-pressure type regulates from 0.05 to 0.4 MPa (7-58 psi), making it ideal for fine low-pressure control. The pressed-in self-locking knob prevents the setpoint from drifting due to vibration or accidental knocks, while the balanced adjustment mechanism holds the setting as supply pressure varies.
Airtac GAR Air Regulator GAR50020L Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020L |
|---|---|
| Series | GAR500 air regulator |
| Port size | 3/4" (PT thread) |
| Regulation type | Lower pressure |
| Pressure range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure gauge | Circular, MPa / psi scale |
| Bracket | Included |
| Reflux valve | None |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -20 to +70 °C |
| Adjustment | Self-locking press-in knob |
| Mounting | Panel + optional bracket |
| Weight | 580 g |
Specifications follow the official AirTAC GAR catalogue (pages 228-229). This is a regulator only — it sets and holds a downstream pressure but does not filter the air or separate water. To clean the air as well, use the matching GAFR500 filter-regulator or add a GAF filter upstream. Never run above the 1.5 MPa (215 psi) proof pressure.
Model Code: Airtac GAR Air Regulator GAR50020L
| GAR500 | GA500 series air regulator — sets the port range and weight class. |
|---|---|
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| L | Lower pressure regulation: 0.05 - 0.4 MPa (7 - 58 psi). This body offers S (standard) or L (lower pressure). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow (reflux) valve. |
A GAR regulates pressure but does not filter — there is no bowl, element or drain code. Need to clean the air too? The matching GAFR500-20 is the same regulator with a built-in filter.
Size Class
- GAR2001/8"-1/4" · 170 g
- GAR3001/4"-1/2" · 300 g
- GAR4003/8"-1/2" · 570 g
- GAR5003/4" · 580 g
- GAR6003/4"-1" · 1390 g
All bodies share the same 0.05-0.9 MPa (S) regulated range, 1.0 MPa max and 1.5 MPa proof; the body number sets the port size and the flow the regulator can pass. Bigger ports feed higher air demand. The catalogue plots a flow curve at 0.7 MPa inlet but prints no numeric envelope, so size by port and weight and confirm the curve for a real duty point.
| This model | GAR500 · 3/4" · 580 g |
|---|---|
| One size down | GAR400 |
| One size up | GAR600 |
| Add filtration | GAFR500-20 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR50020L Is Used
Low-pressure clamping
Set a gentle, repeatable clamp force on delicate workpieces in a machining or assembly fixture, where a standard 0.9 MPa regulator would apply too much force.
Lab air supply
Feed a stable 0.05-0.4 MPa supply to laboratory pneumatic instruments or test rigs that need a precise, low-pressure air source without large fluctuations.
Paint or coating lines
Regulate atomising air for spray finishing equipment where a consistent low pressure is critical for an even coating, without over-pressurising the spray gun.
Is the Airtac GAR Air Regulator GAR50020L the Right Regulator?
Choose the GAR50020L when you need a 3/4in port regulator for a lower-pressure circuit. The L type regulates only 0.05-0.4 MPa (7-58 psi), so it cannot reach a 0.5-0.6 MPa setpoint; for standard machine pressures up to 0.9 MPa, select the S type instead. The mounting bracket is included, the circular gauge reads MPa/psi, and the thread is PT. If the line also needs clean air, use a GAFR500-20 or a GAF filter upstream, as this unit does not filter. The L type's 0.35 MPa adjustable span is about 2.4x narrower than the S type's 0.85 MPa band, giving finer resolution over its low range.
Quick checklist
- ✓ Body size for your air demand (3/4" here)
- ✓ Type S (0.05-0.9) or L (0.05-0.4 MPa)
- ✓ Gauge fitted, or no gauge (N)
- ✓ Thread PT / G / NPT (sets gauge scale)
- ✓ Bracket kept or removed (J)
- ✓ Need filtration too? Use GAFR500
Installation & Setting Notes
- check Install with the airflow arrow: IN to OUT, knob accessible.
- check Put a filter (GAF or a GAFR) UPSTREAM — a regulator does not clean the air.
- check Set pressure by turning the knob up to the target, then press it in to lock.
- check Keep supply at or below the 1.0 MPa (145 psi) max working pressure.
- check Never exceed the 1.5 MPa (215 psi) proof pressure.
- check Support the 580 g unit on its panel or bracket, not on the tubing.
This is a regulator only — it sets and holds pressure but does not filter or lubricate. Add a GAF filter, a GAL lubricator, or step up to the GAFR500-20 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR50020L FAQ
The GAR50020L is a lower-pressure air regulator with a 3/4in port, regulating from 0.05 to 0.4 MPa (7-58 psi). Maximum supply pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and the temperature range is -20 to 70 C. It weighs 580 g and comes with a mounting bracket and a circular gauge reading MPa/psi.
The L type regulates only 0.05-0.4 MPa (7-58 psi), offering finer resolution over that low band compared to the S type's wider 0.05-0.9 MPa range. If your application needs a setpoint above 0.4 MPa, the L type cannot reach it, so the S type would be the correct choice.
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