Airtac GAR Air Regulator GAR40010LJN
The AirTAC Airtac GAR Air Regulator GAR40010LJN is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.4 MPa range, with 3/8" 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 size3/8"
- Pressure range0.05 - 0.4 MPa
- RegulationLower pressure
- GaugeNone (N)
- Reflux valveNo
- Max pressure1.0 MPa
- Weight570 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 GAR40010LJN
The AirTAC GAR40010LJN is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob. It does not filter or clean the air, and it has no bowl or element, so pair it with a GAF or GAFR if the line needs filtration.
This 3/8in model weighs 570 g and regulates in the lower 0.05-0.4 MPa (7-58 psi) band. The pressed-in self-locking knob keeps the setpoint from drifting when the machine vibrates, so a calibrated low-pressure setting stays put through a shift.
Airtac GAR Air Regulator GAR40010LJN Technical Specifications
| Model | Airtac GAR Air Regulator GAR40010LJN |
|---|---|
| Series | GAR400 air regulator |
| Port size | 3/8" (PT thread) |
| Regulation type | Lower pressure |
| Pressure range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure gauge | None (N) — MPa / psi port |
| 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 | 570 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 GAFR400 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 GAR40010LJN
| GAR400 | GA400 series air regulator — sets the port range and weight class. |
|---|---|
| 10 | Port size 3/8". This body offers 10 = 3/8", 15 = 1/2". |
| 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. |
| 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 GAFR400-10 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 | GAR400 · 3/8" · 570 g |
|---|---|
| One size down | GAR300 |
| One size up | GAR500 |
| Add filtration | GAFR400-10 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR40010LJN Is Used
Low-pressure clamping
Set a delicate 0.2 MPa clamp force on a light assembly fixture. The L type's fine resolution over the low band prevents over-clamping thin-walled parts.
Lab air supply
Feed a sensitive pneumatic instrument that needs a stable 0.15 MPa supply. The balanced design holds the setpoint as the shop compressor cycles.
Paint spray regulation
Maintain a consistent 0.3 MPa to a small spray gun. The self-locking knob resists drift from hose whip, keeping the finish uniform.
Is the Airtac GAR Air Regulator GAR40010LJN the Right Regulator?
Choose the GAR400 body when 3/8in ports and a 570 g mass suit your panel layout; step down to the 300 g GAR300 for lighter duty or up to the 1390 g GAR600 for a large header. The L type here regulates only 0.05-0.4 MPa (7-58 psi), which gives finer control over that low band but cannot reach a 0.5-0.6 MPa setpoint, so it is the wrong part for standard machines. This unit has no gauge (N), so read pressure on the line's own panel gauge, and no bracket (J), so mount it directly to the panel. PT threads carry an MPa/psi gauge scale if you add one later. For clean air, use the matching GAFR400-10 or a GAF filter upstream. 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 (3/8" 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 GAFR400
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 570 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 GAFR400-10 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR40010LJN FAQ
It regulates air 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). Operating temperature is -20 to 70 C. The unit weighs 570 g and has a 3/8in port.
The N code means no pressure gauge is fitted, so you read the setpoint on the line's own panel gauge. The J code omits the mounting bracket, so the unit mounts directly to a panel or an existing bracket you already have.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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