Airtac GAR Air Regulator GAR40015LJNK
The AirTAC Airtac GAR Air Regulator GAR40015LJNK is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.4 MPa range, with 1/2" 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 size1/2"
- Pressure range0.05 - 0.4 MPa
- RegulationLower pressure
- GaugeNone (N)
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40015LJNK
The GAR40015LJNK is an air pressure regulator that takes a higher supply and holds a steady lower downstream pressure. It does not filter, clean, or dry the air, and has no drain bowl or filter element. This 1/2in unit weighs 570 g and uses the lower-pressure type, regulating from 0.05-0.4 MPa (7-58 psi).
The pressed-in self-locking knob prevents the setpoint from drifting due to vibration or accidental knocks. A balanced adjustment mechanism helps it maintain its setting as supply pressure varies. With no gauge fitted, you read the pressure on the line's own panel gauge instead.
Airtac GAR Air Regulator GAR40015LJNK Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015LJNK |
|---|---|
| Series | GAR400 air regulator |
| Port size | 1/2" (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 | 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 | 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 GAR40015LJNK
| GAR400 | GA400 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". 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. |
| 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 GAFR400-15 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 · 1/2" · 570 g |
|---|---|
| One size down | GAR300 |
| One size up | GAR500 |
| Add filtration | GAFR400-15 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR40015LJNK Is Used
Low-pressure pneumatic clamp
Set a delicate clamping force on a fixture where the standard 0.9 MPa range would be too coarse. The L type's finer low band lets you dial in a precise 0.2 MPa hold without over-stressing a thin workpiece.
Lab air supply station
Regulate a bench air line for a sensitive instrument that needs a stable 0.3 MPa feed. The balanced valve holds the setpoint as the shop compressor cycles, and the 1/2in port handles the instrument's modest demand.
Spray gun pressure control
Feed a manual spray gun with a consistent low pressure for even coating. The self-locking knob keeps the setting fixed during long shifts, while the no-gauge design lets you rely on the gun's own regulator readout.
Is the Airtac GAR Air Regulator GAR40015LJNK the Right Regulator?
Choose the GAR400 body when your line needs a 1/2in port and the 570 g mass suits a fixed panel or bracket mount. The L type regulates only 0.05-0.4 MPa (7-58 psi), so it cannot reach a 0.5-0.6 MPa setpoint at all; pick the S type for standard machine pressures. This model has no gauge (N) and no bracket (J), so plan for a panel mount and an external pressure readout. The PT thread gives an MPa/psi gauge scale, and the K suffix means a reverse-flow (reflux) valve is attached. If the air also needs cleaning, use a GAFR filter-regulator or a GAF filter upstream. The L type's 0.35 MPa band is about 2.4x narrower than the S type's 0.85 MPa span, giving finer low-pressure resolution.
Quick checklist
- ✓ Body size for your air demand (1/2" 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 GAFR400-15 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR40015LJNK FAQ
The GAR40015LJNK regulates air from 0.05-0.4 MPa (7-58 psi) with a lower-pressure type. 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 570 g and has a 1/2in port.
The N means no pressure gauge is fitted. You read the downstream pressure on the line's own panel gauge or an external gauge instead. The J means no mounting bracket is included, so use a panel mount or an existing bracket.
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