Airtac GAR Air Regulator GAR30015SJ
The AirTAC Airtac GAR Air Regulator GAR30015SJ 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
- Weight300 g
About the Airtac GAR Air Regulator GAR30015SJ
The GAR30015SJ 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 or clean the air, and it has no drain bowl or filter element.
This 1/2in model weighs 300 g and uses the standard S type, regulating from 0.05-0.9 MPa (7-130 psi). The pressed-in self-locking knob prevents the setpoint from drifting due to vibration or accidental contact, so your downstream pressure stays where you left it.
Airtac GAR Air Regulator GAR30015SJ Technical Specifications
| Model | Airtac GAR Air Regulator GAR30015SJ |
|---|---|
| Series | GAR300 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 | 300 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 GAFR300 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 GAR30015SJ
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". This body offers 08 = 1/4", 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 GAFR300-15 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 | GAR300 · 1/2" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-15 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR30015SJ Is Used
Machine tool pressure setting
Set a steady 0.4 MPa for a milling machine's work-holding clamp, protecting the fixture from supply swings in the shop air line.
Test bench air supply
Regulate air to a leak-test fixture at 0.2 MPa, keeping the test pressure stable while other equipment draws from the same compressor.
Pneumatic cylinder speed control
Feed a 1/2in line to a cylinder circuit at 0.6 MPa, giving consistent actuation force without over-pressuring the actuator seals.
Is the Airtac GAR Air Regulator GAR30015SJ the Right Regulator?
Choose the GAR300 body for 1/2in porting at 300 g, a step up from the GAR200's 170 g but lighter than the GAR400's 570 g. The S type covers the full 0.05-0.9 MPa band, while the L type would limit you to 0.05-0.4 MPa and cannot reach a 0.5-0.6 MPa setpoint. This model has no bracket (J), so plan for panel mounting or an existing bracket, and the circular gauge reads MPa/psi with PT threads. If your line also needs clean air, use a GAFR or a GAF filter upstream. The S type's adjustable band is about 2.4x the L type's (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 GAFR300
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 300 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 GAFR300-15 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR30015SJ FAQ
The GAR30015SJ regulates air from 0.05-0.9 MPa (7-130 psi), with a max supply pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -20 to 70 C and weighs 300 g with a 1/2in port.
The J in GAR30015SJ means the mounting bracket is omitted. You would panel-mount the regulator or use an existing bracket in your setup, rather than relying on the included one that comes with non-J models.
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