Airtac GAR Air Regulator GAR50020LN
The AirTAC Airtac GAR Air Regulator GAR50020LN 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 no-gauge (N) port for a panel 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
- GaugeNone (N)
- Reflux valveNo
- Max pressure1.0 MPa
- Weight580 g
About the Airtac GAR Air Regulator GAR50020LN
The AirTAC GAR50020LN is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with its knob. It does not filter or clean the air in any way, and it has no drain bowl or filter element. This model uses a 3/4in port, weighs 580 g, and is the lower-pressure type, regulating from 0.05-0.4 MPa (7-58 psi).
The pressed-in self-locking knob prevents the set pressure from drifting due to vibration or accidental contact, so your downstream equipment sees a stable setting. Because this unit has no gauge (N), you read the pressure on the line's own panel gauge. The balanced adjustment mechanism helps it hold its setpoint as the supply pressure varies, within its rated range.
Airtac GAR Air Regulator GAR50020LN Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020LN |
|---|---|
| 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 | None (N) — MPa / psi port |
| 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 GAR50020LN
| 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. |
| N | No gauge (N) — for a line with a panel gauge already. |
| (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 GAR50020LN Is Used
Low-pressure process station
Set a precise 0.2 MPa supply for a delicate pneumatic sensor or a light-duty diaphragm pump in a production line, where higher pressure would damage the component.
Large-bore actuator control
Feed a 3/4in line to a large cylinder that requires a gentle, consistent force below 0.4 MPa, protecting the mechanism from over-torque.
Test rig pressure reference
Use this regulator to create a stable low-pressure reference for calibration or testing, where the absence of a built-in gauge lets you use a more accurate external meter.
Is the Airtac GAR Air Regulator GAR50020LN the Right Regulator?
Choose the GAR500 for a 3/4in port line that needs a steady low pressure, such as a large actuator or a process station. The L type regulates only 0.05-0.4 MPa (7-58 psi), so it cannot reach a 0.5-0.6 MPa setpoint; pick the standard S type if you need higher pressures. This unit includes the mounting bracket and has no gauge, so rely on an external panel gauge for reading. The PT thread reads in MPa/psi. If the air also needs cleaning, use a GAFR500 filter-regulator or a GAF filter upstream, since this GAR does not filter. The standard S type's 0.05-0.9 MPa band is about 2.4x this L type's adjustable span.
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 GAR50020LN FAQ
It is a lower-pressure regulator with a 3/4in port, regulating from 0.05-0.4 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. The unit weighs 580 g and has no gauge.
The N in the model code means no gauge is fitted. You read the downstream pressure on the line's own panel gauge or an external pressure sensor instead. This saves space and cost when the system already has a display.
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