Airtac GAR Air Regulator GAR50020LJK
The AirTAC Airtac GAR Air Regulator GAR50020LJK 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 valveYes (K)
- Max pressure1.0 MPa
- Weight580 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAR Air Regulator GAR50020LJK
The GAR50020LJK is an air pressure regulator that takes a higher supply and holds a steady lower downstream pressure you set with the knob. It does not filter or clean the air and has no drain bowl or filter element. This unit uses the lower-pressure type, regulating from 0.05 to 0.4 MPa (7-58 psi), with a 3/4in port and a 580 g body.
The pressed-in self-locking knob stops the set pressure drifting from vibration or accidental knocks, so a machine keeps its setting through a shift. The circular gauge with clip and magnifier is fitted and reads MPa/psi, saving panel space while staying easy to read. A reverse-flow (reflux) valve is attached to this model.
Airtac GAR Air Regulator GAR50020LJK Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020LJK |
|---|---|
| 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 | Attached (K) |
| 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 GAR50020LJK
| 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. |
| K | Reverse-flow (reflux) valve attached (K). |
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 GAR50020LJK Is Used
Low-pressure machine station
Set a delicate 0.2 MPa feed to a precision fixture or a light press, where the lower type gives finer resolution over the low band.
Plant air branch line
Stabilize a 3/4in branch feeding several low-pressure devices, holding the setpoint against upstream supply swings.
Bench test rig
Provide a repeatable low-pressure air supply for testing or calibration, with the gauge showing the exact MPa/psi reading.
Is the Airtac GAR Air Regulator GAR50020LJK the Right Regulator?
Choose the GAR500 body when a 3/4in port matches your line and the 580 g mass suits a proper panel or bracket mount. This is the lower-pressure L type, so it regulates only 0.05-0.4 MPa (7-58 psi) and cannot reach a 0.5-0.6 MPa setpoint; pick the standard S type if you need up to 0.9 MPa. The J code means no mounting bracket is included, so plan for a panel mount or an existing bracket. The gauge is fitted and reads MPa/psi on the PT thread; the K code adds a reverse-flow (reflux) valve. If the air also needs cleaning, use a GAFR filter-regulator or a GAF filter upstream, since 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 GAR50020LJK FAQ
The GAR50020LJK is a lower-pressure air regulator with a 3/4in port. It regulates from 0.05 to 0.4 MPa (7-58 psi), with a max supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -20 to 70 C and the unit weighs 580 g. It has a fitted circular gauge reading MPa/psi, no mounting bracket, and a reflux valve attached.
The L type is the lower-pressure version, regulating only 0.05-0.4 MPa (7-58 psi) instead of the standard 0.05-0.9 MPa. It offers finer resolution over that low band but cannot reach a 0.5-0.6 MPa setpoint, so it is the wrong part for a standard machine. This model also has a reflux valve fitted, which is named but not described in our data.
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