Airtac GAR Air Regulator GAR50020LJ
The AirTAC Airtac GAR Air Regulator GAR50020LJ 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 GAR50020LJ
The GAR50020LJ is an air pressure regulator that takes a higher supply and holds a steady lower downstream pressure set by the knob and read on the circular gauge. It does not filter or clean the air and has no drain bowl or filter element. This unit carries a 3/4in port and weighs 580 g, placing it in the mid-large size class for machine-level air lines.
The pressed-in self-locking knob resists vibration and accidental knocks, so the setpoint stays where you left it during production runs. The lower-pressure L type regulates only 0.05-0.4 MPa (7-58 psi), giving finer adjustment over that low band for gentle actuation tasks. The circular gauge with clip and magnifier reads MPa/psi and saves panel space.
Airtac GAR Air Regulator GAR50020LJ Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020LJ |
|---|---|
| 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 | Not included (J) |
| 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 GAR50020LJ
| 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). |
| J | No bracket (J) — panel mount or existing bracket. |
| (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 GAR50020LJ Is Used
Low-pressure clamping
Set a gentle, repeatable clamp force on lightweight parts or fragile assemblies where a standard 0.9 MPa regulator would over-stress the workpiece.
Precision air bearing
Feed a steady 0.05-0.4 MPa supply to an air bearing or low-force positioning stage, holding a stable pressure for fine motion control.
Lab pneumatic control
Regulate air to a test rig or small pilot circuit that needs a low, stable pressure below 0.4 MPa for repeatable experimental conditions.
Is the Airtac GAR Air Regulator GAR50020LJ the Right Regulator?
Choose the GAR50020LJ when your line needs a 3/4in port and a low regulated range from 0.05-0.4 MPa (7-58 psi). The L type cannot reach a 0.5-0.6 MPa setpoint, so pick the standard S type if you need higher pressure. This model has no bracket (J), so plan for panel mounting or an existing bracket; the gauge is fitted and reads MPa/psi on the PT thread. If the air also needs cleaning, use a GAFR500-20 filter-regulator or a GAF filter upstream, as this regulator does not filter. The standard S type spans about 2.4x this L type's adjustable band (0.85 MPa vs 0.35 MPa).
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 GAR50020LJ FAQ
The GAR50020LJ is a lower-pressure regulator with a 3/4in port and a regulated range of 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 a circular gauge fitted reading MPa/psi on a PT thread.
The J in GAR50020LJ means the mounting bracket is omitted, so you mount it to a panel or use an existing bracket. The L type regulates only 0.05-0.4 MPa (7-58 psi), which is ideal for low-pressure tasks but cannot reach higher setpoints like 0.6 MPa, so it is not suitable for standard machines needing full pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAR Air Regulator GAR50020LJ
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.