Airtac GAR Air Regulator GAR40015LK
The AirTAC Airtac GAR Air Regulator GAR40015LK 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 built-in circular pressure 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
- GaugeCircular
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40015LK
The AirTAC GAR40015LK is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob and read on the circular gauge. It does not filter the air or remove water, so keep a GAF or GAFR upstream if the line needs cleaning. This model uses a 1/2in port and weighs 570 g, placing it in the mid-size class for shop and machine lines.
The L type regulates only 0.05-0.4 MPa (7-58 psi), giving finer resolution over that low band than a standard unit. Its pressed-in self-locking knob stops the set pressure drifting from vibration, and the balanced valve design holds the setting as supply pressure varies. The circular gauge with clip and magnifier reads MPa/psi and saves panel space.
Airtac GAR Air Regulator GAR40015LK Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015LK |
|---|---|
| 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 | Circular, MPa / psi scale |
| Bracket | Included |
| 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 GAR40015LK
| 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). |
| (blank) | Mounting bracket included. |
| (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 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 GAR40015LK Is Used
Low-pressure clamping
Set a gentle 0.2 MPa on a delicate part clamp in a light assembly fixture, where the L type's fine low-band resolution prevents crushing.
Lab air supply
Feed a bench-scale pneumatic actuator or a small test rig at a stable low pressure, with the gauge showing the exact MPa/psi setting.
Spray gun regulation
Hold a consistent low pressure for a manual spray gun in a finishing booth, so the coating stays even despite supply swings.
Is the Airtac GAR Air Regulator GAR40015LK the Right Regulator?
Choose the GAR400 body for a 1/2in port and a 570 g mass that suits medium air demand; step down to the GAR300 at 300 g for 1/4in-1/2in ports, or up to the GAR500 at 580 g for a 3/4in port. The L type covers only 0.05-0.4 MPa, so pick it for low-pressure work and the S type for 0.05-0.9 MPa if you need a 0.5-0.6 MPa setpoint. This unit keeps the mounting bracket and the circular gauge, uses PT threads with an MPa/psi scale, and has a reflux valve attached. If the air also needs cleaning, use the matching GAFR400-15 or a GAF filter upstream. The standard S type's 0.05-0.9 MPa band is about 2.4x this L type's 0.35 MPa span.
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 GAR40015LK FAQ
It is an air pressure regulator with a 1/2in port and a 570 g weight. The L type regulates 0.05-0.4 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). Temperature range is -20 to 70 C. It has a circular gauge reading MPa/psi, a mounting bracket, and a reflux valve.
The L type regulates only 0.05-0.4 MPa, giving finer resolution over that low band than the S type's 0.05-0.9 MPa. However, it cannot reach a 0.5-0.6 MPa setpoint at all, so it is the wrong part for a standard machine running at higher pressures.
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