Airtac GAR Air Regulator GAR40015SJ
The AirTAC Airtac GAR Air Regulator GAR40015SJ is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 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 - 0.9 MPa
- RegulationStandard
- GaugeCircular
- Reflux valveNo
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40015SJ
The GAR40015SJ is an air pressure regulator that takes a variable supply and holds a steady downstream pressure you set with its knob. It does not filter or clean the air, and it has no drain bowl or filter element. This unit has a 1/2" port, a standard type range of 0.05-0.9 MPa (7-130 psi), and a circular gauge fitted for reading the set pressure.
The pressed-in self-locking knob prevents the set pressure from drifting due to vibration or accidental contact, so a calibrated setting stays put during a shift. Weighing 570 g, this body class needs a proper panel or bracket mount rather than support from the tubing alone. Its balanced adjustment mechanism holds the setpoint as supply pressure varies, keeping downstream pressure stable.
Airtac GAR Air Regulator GAR40015SJ Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015SJ |
|---|---|
| Series | GAR400 air regulator |
| Port size | 1/2" (PT thread) |
| Regulation type | Standard |
| Pressure range | 0.05 - 0.9 MPa (7 - 130 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 | 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 GAR40015SJ
| 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". |
| S | Standard regulation: 0.05 - 0.9 MPa (7 - 130 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 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 GAR40015SJ Is Used
Machine Tool Pressure Set
Set a steady 0.4 MPa for a pneumatic vise on a milling machine. The self-locking knob keeps the clamping force consistent through a full shift of vibration.
Assembly Line Actuator Feed
Regulate a 1/2" line feeding multiple small actuators on an assembly station. The balanced design holds the setpoint as the plant supply pressure fluctuates.
Test Rig Air Supply
Provide a stable 0.6 MPa to a leak-test fixture. The circular gauge with magnifier makes the set pressure easy to read and verify during setup.
Is the Airtac GAR Air Regulator GAR40015SJ the Right Regulator?
Choose the GAR400 body when you need a 1/2" port and a 570 g unit for medium air demand; step up to the GAR500 at 580 g for a 3/4" port if the line is larger. This model is the standard S type, regulating 0.05-0.9 MPa (7-130 psi), which suits most machinery; the L type only reaches 0.4 MPa and would be the wrong part for a 0.5-0.6 MPa setpoint. The circular gauge is fitted and reads MPa/psi on the PT thread, matching common local installations. The J code means no mounting bracket is included, so plan for panel mounting or an existing bracket. If the air also needs cleaning, use a GAFR filter-regulator or a separate GAF filter upstream, since this regulator does not filter. The S type's adjustable band is about 2.4x the L type's span (0.85 MPa vs 0.35 MPa).
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 GAR40015SJ FAQ
The GAR40015SJ is a standard type regulator with a regulated range of 0.05-0.9 MPa (7-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -20 to 70 C. It has a 1/2" port and weighs 570 g. The circular gauge is fitted and reads MPa/psi.
The J means the mounting bracket is NOT included with this model. You will need to use panel mounting or provide your own bracket. The regulator itself functions the same as a version with a bracket, but you must plan for its 570 g weight to be supported properly.
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